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ai2_arc_ARC-Easy
|
When the pesticide DDT was first used, it killed nearly every mosquito it touched. Within a few years, however, many mosquitoes became resistant to DDT and survived. What enabled this to happen?
|
[
"meiosis",
"migration",
"immune responses",
"gene mutations"
] |
D
| null |
train
| null |
med_mcqa
|
P.Q.L.I. is -
|
[
"IMR, Life expectancy, literacy",
"MMR, Life expectancy, literacy",
"MMR, IMR, Life expectancy",
"IMR, Life expectancy at 1 year of age, SE status"
] |
D
|
Ans. is 'd' i.e., IMR, Life expectancy at 1 year of age, SE status
|
train
| null |
med_mcqa
|
In root end preparation:
|
[
"Tunnel type cavity is prepared",
"Class I cavity is prepared",
"Vertical slot is prepared",
"Any of the above"
] |
B
|
Car and Bentkover defined an ideal root-end preparation as "A class I preparation at least 3.0 mm into root dentine with walls parallel to a coincident with the anatomic outline of the pulp space".
Five requirements suggested for a root end preparation to fulfill:
The apical 3 mm of root canal must be freshly cleaned and shaped.
Preparation must be parallel to the anatomic outline of the pulp cavity.
Creation of an adequate retention form.
Removal of all isthmus tissue if present.
Remaining dentin walls should not be weakened.
Textbook of Endodontics Nisha Garg 3rd Ed
|
train
| null |
mmlu
|
Having a child may improve a woman's memory, a new study suggests. In the study, women who were new mothers scored better on tests of visuospatial memory - the ability to understand and remember information about their surroundings--compared with women who didn't have children. The findings contradicts the old belief that women develop"baby brain" or a decline in memory and cognitive function, after they have kids, said study researcher Melissa Santiago, a doctoral student at Carlos Albizu University in Miami. "You don't have to feel that because you have kids, your memory isn't the same," Santiago said. The study was small, and the findings will have to be tested in larger groups of people, Santiago said. Previous studies on the topic have had mixed results--some showed motherhood hurts cognition, and others showed the opposite. Studies on rats show those with pups have better memory than those without offspring. Santiago analyzed information from 35 first-time mothers whose children were ages 10 to 24 months, and 35 women who had never been pregnant. Both groups scored similarly on intelligence tests. The average age of mothers was 29 and the average age of never-pregnant women was 27. To test visuospatial memory, the women were shown a paper containing six symbols for 10 seconds, and then asked to draw what they remembered. This task was repeated several times. The first time women were shown the paper, both groups remembered about the same amount. But on the second and third pass, mothers performed better than those without children, indicating that the mothers collected more information each time than the other women. Later, the women were shown a variety of different symbols, and asked to remember which ones were presented on the earlier task. Mothers did not make a mistake in this task--they remembered every symbol correctly--but those without children made one or two errors, Santiago said. How did Santiago lead to the findings?
|
[
"By observation.",
"By comparison.",
"By analyzing intelligence tests.",
"By asking women questions."
] |
B
| null |
train
| |
mmlu
|
All the housewives who went to the new supermarket had one great ambition: to be the lucky customer who did not have to pay for her shopping.For this was what the notice just inside the entrance promised.It said: "Remember, once a week, one of our customers gets free goods.This May Be Your Lucky Day!" For several weeks Mrs. Edwards hoped, like many of her friends, to be the lucky customer.Unlike her friends, she never gave up hoping.The cupboards in kitchen were full of things which she did not need.Her husband tried to advise her against buying things but failed.She dreamed of the day when the manager of the supermarket would approach her and say: "Madam, this is Your Lucky Day.Everything in your basket is free." One Friday morning, after she had finished her shopping and had taken it to her car, she found that she had forgotten to buy any tea.She dashed back to the supermarket, got the tea and went towards the cash-desk.As she did so, she saw the manager of the supermarket approach her."Madam," he said, holding out his hand, "I want to congratulate you! You are our lucky customer and everything you have in your basket is free!" Mrs. Edwards went back to the supermarket quickly because she had to _ .
|
[
"buy another thing",
"talk to the manager",
"pay for her shopping",
"find her shopping"
] |
A
| null |
train
| |
aqua_rat
|
0.9*0.007= _________
|
[
"0.0063",
"0.63",
"0.00063",
"63"
] |
A
|
9*7=63
Sum of decimal places= 4
So, 0.9*0.007= 0.0063
ANSWER:B
|
train
| null |
med_mcqa
|
Most common fracture in elderly
|
[
"TCNF",
"Colle's fracture",
"IT fracture",
"Supracondylar fracture"
] |
B
|
Colle's fracture is the most common fracture in person over 40 years.
|
train
| null |
sciq
|
What must two nuclei do for fusion to occur?
|
[
"collide",
"explode",
"repel each other",
"melt"
] |
A
|
Two nuclei must collide for fusion to occur. High temperatures are required to give the nuclei enough kinetic energy to overcome the very strong repulsion resulting from their positive charges. A nuclear reactor consists of the following: 1. A nuclear fuel. A fissionable isotope must be present in large enough quantities to sustain a controlled chain reaction. The radioactive isotope is contained in tubes called fuel rods. A moderator. A moderator slows neutrons produced by nuclear reactions so that they can be absorbed by the fuel and cause additional nuclear reactions. A coolant. The coolant carries heat from the fission reaction to an external boiler and turbine where it is transformed into electricity.
|
train
| null |
ai2_arc_ARC-Easy
|
Students conducted an investigation with green bananas. They hypothesized that an onion placed near a banana could increase the rate at which the banana ripened. They placed one onion and one banana in each of three containers. In a fourth container they placed a banana, but no onion. Which statement best explains why the onion was left out of the fourth container?
|
[
"The onion would contaminate the fourth trial.",
"The container without the onion is the control.",
"Three containers with onions are enough to conduct the test.",
"The container without the onion is the independent variable."
] |
B
| null |
train
| null |
aqua_rat
|
Ammu is 9 years older than Surya, and Jacob is four times older than Ammu. If S is Surya’s age and J is Jacob’s age, what is the relationship between S and J?
|
[
"J = 4S + 10",
"J = 4S + 26",
"J = 4S + 5",
"J = 4S + 36"
] |
D
|
A=S+9 and J=4A --> J=4S+36
Answer D
|
train
| null |
aqua_rat
|
How many of the positive factors of 20 are not factors of 24
|
[
"3",
"4",
"1",
"5"
] |
A
|
factors of 20 - 1, 2, 4,5, 10, 20
factors of 24 -1, 2, 3, 4, 6, 8, 12 and 24
Comparing both, we have 3 factors of 20 which are not factors of 24- 5,10,20
Answer : B
|
train
| null |
mmlu
|
Wildwood School Library Guide This will offer you some information about our school library. You can use this guide to help your kids use our library. Service hours: 3:00 p.m.--5:30 p.m.on school days; 8:30 a.m.--11:00 a.M.on weekends On school days, your kids may borrow or return books during opening hours only when his classroom teacher allows him to.At the weekend, our library is open to both you and your kids. Borrowing: Each student can borrow one or two books at a time. More books can be borrowed only for class reading activities and school research. Returning: Books borrowed from the library can be kept for 15 school days. The books must be returned before the due date or the kid can not borrow other books. Damaged or Lost Books: When a book is returned in a damaged condition, the kid will have to pay three dollars for the damage. Full price must be paid if a book is lost. We encourage students to carry their library books in plastic bags to protect them from rainy weather. Please call us at 33621323 for more information. _ must be paid when a student loses the book he borrows.
|
[
"Three dollars",
"Half the price of the book",
"Full price of the book",
"Twice the price of the book"
] |
C
| null |
train
| |
med_mcqa
|
According to WHO, MMR is
|
[
"Death immediately after the delivery",
"Death after 42 days",
"Death after 30 days",
"Death after 7 days"
] |
B
|
(B) Death after 42 days > Late maternal death: A late maternal death is the death of a woman from direct or indirect obstetric causes more than 42 days but less than one year after termination of pregnancy.
|
train
| null |
mmlu
|
As one approaches some crossroads, one comes to a sign which says that drivers have to stop when they come to the main road ahead. At other crossroads, drivers have to go slow, but they do not actually have to stop (unless, of course, there is something coming along the main road); and at still others, they do not have either to stop or to go slow, because they are themselves on the main road. Mr. Williams, who was always a very careful driver, was driving home from work one evening when he came to a crossroads. It had a "Slow" sign, so he slowed down when he came to the main road, looked both ways to see that nothing was coming, and then drove across without stopping completely. At once he heard a police whistle, so he pulled in to the side of the road and stopped. A policeman walked over to him with a notebook and pencil in his hand and said, "You didn't stop at the crossing." "But the sign there doesn't say "Stop"," answered Mr. Williams. "It just says "Slow", and I did go slow." The policeman looked around him, and a look of surprise came over his face. Then he put his notebook and pencil away, scratched his head and said, "Well, I'll be scolded. I am in the wrong street!" What do you think the policeman would do in the end?
|
[
"Fine Mr. Williams.",
"Take him to the police station.",
"Apologize to Mr. Williams.",
"Give Mr. Williams his notebook and pencil."
] |
C
| null |
train
| |
m1_preference_data
|
KEM/DEM refers to\dots
|
[
"an encryption scheme.",
"a digital signature scheme.",
"a commitment scheme.",
"a hash function."
] |
A
| null |
train
| null |
m1_preference_data
|
The Kerckhoffs principle says that
|
[
"the design of a cryptosystem has to be public to be secure.",
"the design of a cryptosystem has to be secure before being made public.",
"the security of a system should not rely on the secrecy of the cryptosystem.",
"a cryptosystem should have a public component (such as a key) to be secure."
] |
C
| null |
train
| null |
m1_preference_data
|
Select the \emph{incorrect} statement. Elliptic Curve Diffie-Hellman is
|
[
"based on the difficulty of factoring the polynomial of EC.",
"based on the difficulty of computing the discrete logarithm in EC.",
"used in Bluetooth 2.1.",
"used for epassports."
] |
A
| null |
train
| null |
m1_preference_data
|
The Advanced Encryption Standard (AES) is based on arithmetics on\dots
|
[
"$\\mathrm{GF}(256)$",
"$\\mathbf{Z}_{2^8}^*$",
"$\\mathbf{Q}\\setminus \\{0\\}$",
"$\\mathbf{Z}_{2^8}$"
] |
A
| null |
train
| null |
ai2_arc_ARC-Easy
|
In the atomic model that includes a nucleus, the positive charge is
|
[
"spread evenly throughout the model.",
"located at multiple sites in the model.",
"concentrated in the center of the model.",
"positioned outside the center of the model."
] |
C
| null |
train
| null |
mmlu
|
One day a young man was standing in the middle of the town announcing that he had the most beautiful heart in the whole town. A large crowd gathered, and they all thought it was perfect. There was not a flaw in it. Suddenly, an old man said, "Your heart is not nearly as beautiful as mine." The crowd and the young man looked at the old man's heart. It was full of scars . The young man laughed. "Comparing your heart with mine, mine is perfect and yours is a mess of scars." "Yes," said the old man, "You see, every scar represents a person to whom I have given my love. I tear out a piece of my heart and give it to them, and often they give me a piece of their heart that fits into the empty place in my heart. Though it has some scars, I cherish . Because they remind me of the love we shared. Sometimes I have given pieces of my heart away, and the other person hasn't returned a piece of his or her heart to me. These are the empty gouges . Although these gouges are painful, they stay open, reminding me of the love I have for those people too, and I hope someday they may return and fill the space I have waiting. So now do you see what true beauty is?" The young man ripped a piece out of his perfect heart and offered it to the old man. The old man placed it in his heart, then took a piece from his old scarred heart and placed it in the _ in the young man's heart. The young man looked at his heart, not perfect anymore but more beautiful than ever, since love from the old man's heart flowed into his. They embraced and walked away side by side. ,. The scares can _ .
|
[
"recover by themselves",
"be filled as well as before",
"represent how hard the old man has lived",
"represent that the old man has given love to many people"
] |
D
| null |
train
| |
med_mcqa
|
Serum ACE levels are reduced in
|
[
"Sarcoidosis",
"COPD",
"DM",
"Hisoplasmosis"
] |
B
|
(B) COPD# Elevated levels of ACE are found in sarcoidosis, and are used in diagnosing and monitoring this disease.> Elevated levels of ACE are also found in leprosy, hyperthyroidism, acute hepatitis, primary biliary cirrhosis, diabetes mellitus, multiple myeloma, osteoarthritis, amyloidosis, Gaucher disease, pneumoconiosis, histoplasmosis, miliary tuberculosis.> Serum levels are decreased in renal disease, obstructive pulmonary disease, and hypothyroidism.
|
train
| null |
aqua_rat
|
A family with 1 mother, 1 father, and 2 children sit in a car with 2 front seats and 3 back seats. If the mother drives with a child in the front, and the father sits in the back center seat with the other two children on either side of him, how many seating arrangements are possible?
|
[
" 2",
" 4",
" 6",
" 10"
] |
A
|
Mother has a fixed place and father, so there are 2! ways to arrange the children, hence A
|
train
| null |
sciq
|
Things that are hydrophobic repel or otherwise don't really mix with what?
|
[
"water",
"heat",
"magnets",
"air"
] |
A
|
Lignin is a tough carbohydrate molecule that is hydrophobic (“water fearing”). It adds support to vascular tissues in stems. It also waterproofs the tissues so they don’t leak, which makes them more efficient at transporting fluids. Because most other organisms cannot break down lignin, it helps protect plants from herbivores and parasites.
|
train
| null |
med_mcqa
|
Which of the following nerve injury gives positive Trendelenburg test?
|
[
"Obturator",
"Sciatic",
"Superior Gluteal",
"Inferior Gluteal"
] |
C
|
When a person who has suffered a lesion of the superior gluteal nerve is asked to stand on one leg, the pelvis on the unsuppoed side descends, indicating that the gluteus medius and minimus on the suppoed side are weak or non-functional. This sign is referred to positive Trendelenburg test. Other causes of positive Trendelenburg test are,Fracture of the greater trochanterDislocation of the hip jointRef: Clinically Oriented Anatomy By Keith L. Moore, Ahur F. Dalley, II, Anne M. R. Agur, 2013, Page 582.
|
train
| null |
ai2_arc_ARC-Easy
|
A student states that plants grow taller when grown in natural light than they do in artificial light. Which method is the best way to determine if the statement is fact or opinion?
|
[
"conduct a controlled experiment",
"discuss the statement with other students",
"ask several teachers their thoughts",
"propose a scientific conclusion"
] |
A
| null |
train
| null |
ai2_arc_ARC-Easy
|
Competition is most likely to occur between which two organisms?
|
[
"deer and butterflies",
"owls and bacteria",
"goldfish and rabbits",
"grass and strawberry plants"
] |
D
| null |
train
| null |
sciq
|
What state of hydrogen can be predicted based on the atoms to which it is bonded?
|
[
"precipitation",
"condensation",
"evaporation",
"oxidation"
] |
D
|
The oxidation state of hydrogen can also be predicted based on the atoms to which it is bonded. As with other pure elements, hydrogen has an oxidation state of zero in H 2 .
|
train
| null |
aqua_rat
|
By selling 14 pencils for a rupee a man loses 22%. How many for a rupee should he sell in order to gain 22%?
|
[
"10",
"7",
"6",
"4"
] |
A
|
88% --- 14
122% --- ?
88/122 * 14 = 10
Answer: A
|
train
| null |
sciq
|
What is a measure of the average amount of energy of motion, or kinetic energy, a system contains called?
|
[
"temperature",
"variation",
"size",
"precipitation"
] |
A
|
There are other units in chemistry that are important, and we will cover others in the course of the entire book. One of the fundamental quantities in science is temperature. Temperature is a measure of the average amount of energy of motion, or kinetic energy, a system contains. Temperatures are expressed using scales that use units called degrees, and there are several temperature scales in use. In the United States, the commonly used temperature scale is the Fahrenheit scale (symbolized by °F and spoken as “degrees Fahrenheit”). On this scale, the freezing point of liquid water (the temperature at which liquid water turns to solid ice) is 32°F, and the boiling point of water (the temperature at which liquid water turns to steam) is 212°F. Science also uses other scales to express temperature. The Celsius scale (symbolized by °C and spoken as “degrees Celsius”) is a temperature scale where 0°C is the freezing point of water and 100°C is the boiling point of water; the scale is divided into 100 divisions between these two landmarks and extended higher and lower. By comparing the Fahrenheit and Celsius scales, a conversion between the two scales can be determined: °C=(°F–32) × 59° Saylor URL: http://www. saylor. org/books.
|
train
| null |
med_mcqa
|
A woman died within 5 years of marriage under suspicious circumstances. Her parents complained that her in laws used to frequently demand for dowry. Under which of the following sections can be a magistrate authorize autopsy of the case?
|
[
"Section 302 IPC",
"Section 174 Cr Pc",
"Section 174 Cr Pc",
"Section 304 IPC"
] |
C
|
ref: The Essentials Forensic Medicine & Toxicology Dr.K.S. Narayana Reddy 32nd edition pg no 280 S.174 (3)Cr.P.C. Procedure in dowry (suicide,suspected murder ,request by a relative; doubt of cause of death, police consider necessary ) police has to enqire and repo.dowry death occur either by mmurder of a married woomenor she herself commiting suicide being unable to bear harassement or cruelty for not fulfiling the promises by her parents or her relatives or of those interested in her marriage. such murders are invariably commited secretely either in the house or at a place where outsiders may not witness it. the bride may killed or burnt by various methods.the usual defence in all dowry death cases is that either the women commited suicide or death occured accidently due to burns while cooking food. the doctor should make a record of the history of the injuries and the persons responsible for it,when the victim is brought to the hospital,noting the time and the name of the person who give the history.the condition of the patient should be recorded at frequent intervals. care should be taken that no person has discussion with the victim before doctors record the statement of the victim to avoid any undue influence being exeed on her. a magistrate may be called to record the dying declaration. inquest should be conducted by a magistrate or police officer not below the rank of deputy suoerintendent of police and autopsy should be carried out by two doctors in case of dowry death or if age of the wome is less than 30 years who dies in suspicious circumstances.
|
train
| null |
med_mcqa
|
En coup de sabre lesion is seen in ?
|
[
"Neonatal lupus",
"Systemic JIA",
"Juvenile Dermatomyosistis",
"Juvenile Scleroderma"
] |
D
|
En coup de Sabre lesion is seen in juvenile localized scleroderma (morphea) It appears as an indented , veical, colorless, line of skin on the forehead. The indentation looks as though the person may have struck (coup) by a sword (sabre) This lesion involves the scalp/or face; lesion can extend into the centra; nervous system, resulting in neurologic sequelae, which are most commonly seizures and headaches. Ref: nelson textbook of pediatrics 21st edition Pgno: 1286
|
train
| null |
sciq
|
What is the permanent prevention of gamete production or release called?
|
[
"restoration",
"sterilization",
"fertilization",
"insemination"
] |
B
|
train
| null |
|
mmlu
|
Moving should be an exciting time -- you're off to a new home, maybe moving up to a larger home. But for many people, moving turns into a stressful experience. It doesn't have to be that way. Some planning and a little research can make your next move the best one ever. Organization is the key to a successful move, so list your friends. Write down all the details that you need, especially things that might be lost during the move. Once you decide to move, start packing things immediately. You can find all the supplies you need, such as boxes, packing tape and more at truck rental outlets like Budget Truck Rental. The experts there can help you figure out how many and what types of boxes you'll need. About a month before your moving date, reserve your moving truck. The company you choose makes a big difference. Budget Truck Rental has 30,000 trucks nationwide for you to choose. Take care of your mail. Stop by your local post office and write the new address where your mail should be sent. You'll also want to change the address on any magazine subscriptions or other services you receive by mail. Make sure you have a group of friends to help you move. If you still have some boxes to pack, your friends can help you put the boxes into the truck while you finish up. How many suggestions does the passage offer for your move?
|
[
"Three.",
"Four.",
"Five.",
"Six."
] |
C
| null |
train
| |
aqua_rat
|
Out of 8 consonants and 4 vowels, how many words of 3 consonants and 1 vowels can be formed?
|
[
"21005",
"25200",
"5376",
"None of these"
] |
C
|
Solution
Number of ways of selecting (3 consonants out of 8) and (1 vowels out of 4)
8c3 x 4c1= (8x7x6/3x2x1)x(4/1) =224
Number of group,each having 3 consonants and 1 vowels = 224 .
Each group contains 4 letter.
Number of ways of arranging 5 letters among themselves
= 4 ! = (4 × 3 × 2 × 1) = 24 .
So, Required number of words = (24 × 224) = 5376 .Answer D
|
train
| null |
ai2_arc_ARC-Challenge
|
Which animal is preparing for a seasonal change in the environment?
|
[
"a bat flying at night",
"a deer drinking water",
"an owl eating a mouse",
"a squirrel storing nuts"
] |
D
| null |
train
| null |
aqua_rat
|
A rectangular-shaped carpet that measures x feet by y feet is priced at $40. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet)
|
[
"xy/360",
"40xy/9",
"360xy",
"360/(xy)"
] |
D
|
The area of the carpet in feet is xy.
The area in square yards is xy / 9.
The price per square yard is 40 / (xy/9) = 360/(xy).
The answer is E.
|
train
| null |
sciq
|
Reducing the production of what gas, or removing it from the air, are practices that could reduce global warming?
|
[
"oxygen",
"hydrogen",
"carbon dioxide",
"helium"
] |
C
|
Efforts to reduce future global warming mainly involve energy use. We need to use less energy, for example, by driving more fuel-efficient cars. We also need to switch to energy sources that produce less carbon dioxide, such as solar and wind energy. At the same time, we can increase the amount of carbon dioxide that is removed from air. We can stop destroying forests and plant new ones.
|
train
| null |
med_mcqa
|
A 4-year-old child developed sudden bouts of cough & respiratory distress after eating peanuts. His Chest X ray shows the following; Diagnosis?
|
[
"Obstructive emphysema right side",
"Obstructive emphysema left side",
"Pneumonia",
"Bronchiectasis"
] |
B
|
This chest X-ray shows increased radiolucency of left hemithorax suggestive of hyperinflated chest on left side Foreign body aspiration could be the probable underlying cause- Obstructive emphysema left side
|
train
| null |
sciq
|
In mammals, hair or fur help conserve bodily what?
|
[
"food",
"energy",
"heat",
"water"
] |
C
|
Conserving heat is also important, especially in small mammals. A small body has a relatively large surface area compared to its overall size. Because heat is lost from the surface of the body, small mammals lose a greater proportion of their body heat than large mammals. Mammals conserve body heat with their hair or fur. It traps a layer of warm air next to the skin. Most mammals can make their hair stand up from the skin, so it becomes an even better insulator. Even humans automatically contract these muscles when they are cold, causing goosebumps (see Figure below ). Mammals also have a layer of fat under the skin to help insulate the body. This fatty layer is not found in other vertebrates.
|
train
| null |
ai2_arc_ARC-Challenge
|
Limestone is a sedimentary rock and marble is a metamorphic rock. Even though limestone and marble have the same chemical makeup, they are classified as different rocks because they
|
[
"were formed from different fossils",
"took different amounts of time to form",
"formed at different times",
"formed by different methods"
] |
D
| null |
train
| null |
med_mcqa
|
True statement about great saphenous vein
|
[
"It begins at lateral end of dorsal venous arch",
"It runs anterior to medial malleolus",
"It is accompanied by sural nerve",
"Terminates into popliteal vein"
] |
B
|
The great saphenous vein is formed on the dorsum of foot by the union of the medial end of dorsal venous arch of foot and medial marginal vein of the foot. It runs 2.5 cm in front of medial malleolus It drains into femoral vein after piercing femoral sheath. It is accompanied by the saphenous nerve Reference: Textbook of anatomy, Abdomen and lower limb, Vishram Singh, 2nd edition, page no.459-460
|
train
| null |
ai2_arc_ARC-Easy
|
What causes a blue block to appear blue in the sunlight?
|
[
"The block absorbs all blue light.",
"The block bends (refracts) all blue light.",
"Only blue light is reflected by the block.",
"Only blue light passes through the block."
] |
C
| null |
train
| null |
med_mcqa
|
Drugs inhibiting the formation of IL-2 are : a) Cycloserine b) Cyclosporine c) OKT–3 d) Tacrolimus
|
[
"bd",
"a",
"c",
"ad"
] |
A
| null |
train
| null |
med_mcqa
|
Carcinoma of the prostate arise from
|
[
"Central zone",
"Peripheral zone",
"Transitional zone",
"Periurethral zone"
] |
B
|
(Peripheral zone) (1045-CSDT 12th) (1354-B &L 25th)CARCINOMA OF PROSTATE - 90% of tumours are adenocarcinoma the tumour arises primarily in the peripheral zone (70%) an area that differs in embryoic derivation from the periurethral (transition) zone which is the site of formation of benign prostatic hyperplasiaScreening - by transrectal ultrasound (TRUS/and prostate specific antigen (PSA)* PSA = (under age 55 years) normal > 2.5 ng/ml= over age 65 years/ normal > 6.5 ng/ml.* PSA density (PSA divided by prostate volume) >0.15 suggest cancer* Percent free PSA (Total PSA minus complexed PSA) where when < 10% the risk of prostate cancer is 60% (only useful with total PSA 2-10 mg/ml)* Newer methods for measuring unbound (free) PSA have substantial promise for differentiating benign from malignant disease
|
train
| null |
med_mcqa
|
LCAT activates
|
[
"Apo A1",
"Apo B100",
"Apo C-2",
"Apo C-3"
] |
A
|
Lipoproteins classes as per apoprotein contents Families: LP A Apolipoproteins: A-I and A-II Density class: HDL Mol. wt. range: 17000 to 28000 Function: LCAT activator, 'Scavenger'Ref: Textbook of Medical Biochemistry, Eighth Edition, Dr (Brig) MN Chatterjea, page no:445, Table 25.11
|
train
| null |
aqua_rat
|
Let us say that a table tennis tournament was going on with knock out terms which means the one who loses the match is out of the tournament. 100 players took part in that tournament.
How many matches were played?
|
[
"99",
"50",
"85",
"57"
] |
A
|
B
The number of matches will always sum up to one less than the number of players in a knock out tournament. You may calculate it in any manner. Thus 99 matches were played.
|
train
| null |
sciq
|
What phenomenon can cause a protein in an organism to be made incorrectly?
|
[
"allele",
"heredity",
"mutation",
"evolution"
] |
C
|
A mutation may have no effect. However, sometimes a mutation can cause a protein to be made incorrectly. A defect in the protein can affect how well the protein works, or whether it works at all. Usually the loss of a protein function is detrimental to the organism.
|
train
| null |
sciq
|
What kind of system do echinoderms possess?
|
[
"autonomic nerous system",
"photosynthetic",
"primitive respiratory",
"water-based circulatory"
] |
D
|
15.5 Echinoderms and Chordates Echinoderms are deuterostome marine organisms. This phylum of animals bear a calcareous endoskeleton composed of ossicles covered by a spiny skin. Echinoderms possess a water-based circulatory system. The madreporite is the point of entry and exit for water for the water vascular system. The characteristic features of Chordata are a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. Chordata contains two clades of invertebrates: Urochordata (tunicates) and Cephalochordata (lancelets), together with the.
|
train
| null |
ai2_arc_ARC-Challenge
|
Which compound does not contain individual molecules?
|
[
"salt",
"water",
"hydrogen gas",
"carbon monoxide"
] |
A
| null |
train
| null |
sciq
|
What is the most common way to classify stars?
|
[
"by distance",
"by age",
"by size",
"by color"
] |
D
|
The most common way of classifying stars is by color as shown, in Table below . Each class of star is given a letter, a color, and a range of temperatures. The letters don’t match the color names because stars were first grouped as A through O. It wasn't until later that their order was corrected to go by increasing temperature. When you try to remember the order, you can use this phrase: “Oh Be A Fine Good Kid, Man. ”.
|
train
| null |
ai2_arc_ARC-Challenge
|
Which factor most accurately describes the statement "Survival of the fittest" in relation to natural selection?
|
[
"the mutation rate",
"the ability of offspring to reproduce",
"the amount of food an organism obtains",
"the ability to withstand environmental extremes"
] |
B
| null |
train
| null |
ai2_arc_ARC-Challenge
|
A 72 W navigation unit on a commercial aircraft has a 24 V power supply and uses 3 A of electric current. What is the electrical resistance of the navigation unit?
|
[
"4 ohms",
"8 ohms",
"13 ohms",
"22 ohms"
] |
B
| null |
train
| null |
ai2_arc_ARC-Challenge
|
Muscle cells have the ability to store and release large amounts of energy. Which body function is best served by this release of energy?
|
[
"exchanging gases",
"moving body parts",
"absorbing nutrients",
"sending nerve impulses"
] |
B
| null |
train
| null |
aqua_rat
|
A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy ground shall it graze?
|
[
"1219",
"1210",
"1211",
"1212"
] |
B
|
π (232 – 122) = 1210
Answer: C
|
train
| null |
mmlu
|
On 17 March 2003, Robin Cook, Leader of the House of Commons and former Foreign Secretary, resigned from the Cabinet in protest against the coming war in Iraq. His resignation speech inspired the first long applause in the history of the House and marked the end of the ministerial career of one of Labor's most brilliant politicians. For the previous two years, Robin Cook kept a diary, a personal record of the life of Labor's second term, a diary that forms the center of the narrative . The Point of Departureis Robin Cook's plain account of this extraordinary period in our political history, the most important political publication of the decade. Though surprised by his abrupt dismissal as Foreign Secretary, he became determined to bring about some changes in Parliamentary democracy that he believed was essential if Parliament was to move into the 21stcentury. As Tony Blair told him, "This is the job for you." Drawing on first-hand experiences in the Commons and the Cabinet, of encounters in conferences, and late night conversations, we follow his gathering disillusionment as the political compass of the government changes to directions which he believes to be completely mistaken: from its failure about Lords reform and its unwillingness to provide leadership for social change, to a foreign policy which has led us away from our responsibility in Europe, into closer relationship with the most right-wing government in American history, and participation in Bush's war on Iraq. This is the story of a government in power and the tensions between those who govern. But above all it is a story of a politician who truly wanted to bring democracy closer to the people, but who saw a government increasingly separated from the values of himself and his party, and who developed a growing belief that on Iraq, its position was morally, diplomatically and politically wrong. Robin Cook first entered Parliament as MP for Edinburgh Central in 1974. He held a number of senior positions in Opposition -- Shadow Foreign Secretary, Shadow Health and Social Services Secretary -- before becoming Foreign Secretary in 1997. In 2001 he was appointed Leader of the House of Commons, a position from which he resigned in March 2003 in protest against the coming war in Iraq. Robin Cook resigned from his post because he _ .
|
[
"couldn't accept the government's decision to join in the coming war in Iraq",
"wanted to have more time to keep his diary",
"was not allowed to make any changes to Parliamentary democracy",
"was not satisfied with the job Tony Blair gave him"
] |
A
| null |
train
| |
sciq
|
Both pathways that isolate a population reproductively in some form, allopatric and sympatric describe what, which means the creation of new species?
|
[
"extinction",
"bacterial",
"accumulation",
"speciation"
] |
D
|
18.2 Formation of New Species Speciation occurs along two main pathways: geographic separation (allopatric speciation) and through mechanisms that occur within a shared habitat (sympatric speciation). Both pathways isolate a population reproductively in some form. Mechanisms of reproductive isolation act as barriers between closely related species, enabling them to diverge and exist as genetically independent species. Prezygotic barriers block reproduction prior to formation of a zygote, whereas postzygotic barriers block reproduction after fertilization occurs. For a new species to develop, something must cause a breach in the reproductive barriers. Sympatric speciation can occur through errors in meiosis that form gametes with extra chromosomes (polyploidy). Autopolyploidy occurs within a single species, whereas allopolyploidy occurs between closely related species.
|
train
| null |
mmlu
|
As we all know , the language is a very important tool for people to communicate with each other. In most of the languages , people usually begin their conversations by a kind of small talk -a casual form of conversation that "breaks the ice" or fills an awkward silence between people . That is to say , small talk means the little things we talk about to start a conversation . In English-speaking countries such as Britain, people often make small talk about the weather. " Nice day, isn't it?" "Terrible weather , isn't it?" However, we still have something special about small talk. It must be about something which both people have the same opinion about. The purpose of small talk is to let both people agree on something. This makes meeting people easier and more comfortable . People usually agree about the weather, so it is a safe topic for small talk. But people often disagree about religion or politics so these are not suitable topics for small talk. The topics for small talk also depend on where the conversation is taking place. At basketball matches, people make small talk about the game they are watching. "Great game , isn't it?" At train stations, people may talk about the transport system . " The train service is terrible, isn't it?" When we say "Great game, isn't it ?" what do we mean in fact?
|
[
"asking a question",
"making small talk",
"greeting each other",
"talking about the game"
] |
D
| null |
train
| |
med_mcqa
|
Which drug is used for pain control in cancer patients ?
|
[
"Pethidine",
"Fentanyl",
"Methadone",
"Remifentanil"
] |
B
| null |
train
| null |
med_mcqa
|
The second costochondral joint is a
|
[
"Fibrous joint",
"Synol joint",
"Synchondrosis",
"Syndesmosis"
] |
C
|
.
|
train
| null |
mmlu
|
A new study, led by scientists at the American Museum of Natural History, shows that living sharks are actually quite advanced in evolutionary terms, despite having retained their basic "sharkiness" over millions of years. The research is published today in the journal Nature. "Sharks are traditionally thought to be one of the most primitive surviving jawed vertebrates . And most textbooks in schools today say that the internal jaw structures of modern sharks should look very similar to those in primitive shark-like fishes," said Alan Pradel, a postdoctoral researcher at the Museum and the lead author of the study. "But we've found _ is not the case. " The new study is based on an extremely well-preserved shark fossil collected by Ohio University professors Royal Mapes and Gene Mapes in Arkansas, where an ocean basin once was home to a diverse marine ecosystem. The fossilized skull of the new species, named Ozarcus mapesae. The heads of all fishes -- sharks included -- are segmented into the jaws and a series of arches that support the jaw and the gills . These arches are thought to have given rise to jaws early in the tree of life. Because shark skeletons are made of cartilage , not bone, their fossils are very fragile and are usually found in flattened parts, making it impossible to study the shape of these internal structures. But the Ozarcus mapesae specimen was preserved in a nearly three-dimensional state, giving researchers a rare glimpse at the organization of the arches in a prehistoric animal. "This beautiful fossil offers one of the first complete looks at all of the gill arches and associated structures in an early shark. There are other shark fossils like this in existence, but this is the oldest one in which you can see everything," said John Maisey, a curator in the Museum's Division of Paleontology and one of the authors on the study. "There's enough depth in this fossil to allow us to scan it and digitally dissect out the cartilage skeleton." Working with scientists at the European Synchrotron, the ESRF, Pradel imaged the specimen with high-resolution x-rays to get a detailed view of each individual arch shape and organization. "We discovered that the arrangement of the arches is not like anything you'd see in a modern shark or shark-like fish," said Pradel. "Instead, the arrangement is fundamentally the same as bony fishes." The authors say it's not unexpected that sharks -- which have existed for about 420 million years -- would undergo evolution of these structures. But the new work, especially when considered alongside other recent developments about early jawed vertebrates, has significant implications for the future of evolutionary studies of this group. "Bony fishes might have more to tell us about our first jawed ancestors than do living sharks," Maisey said. It is hard to study the internal jaw structures of ancient sharks because _ .
|
[
"there are only a few shark fossils",
"shark skeletons are made of bones",
"their fossils are often in poor condition",
"their fossils are found in a nearly three-dimensional state"
] |
C
| null |
train
| |
m1_preference_data
|
Consider the Rabin cryptosystem using a modulus $N=pq$ where $p$ and $q$ are both $\ell$-bit primes. What is the tightest complexity of the encryption algorithm?
|
[
"$O(\\ell)$",
"$O(\\ell^2)$",
"$O(\\ell^3)$",
"$O(\\ell^4)$"
] |
B
| null |
train
| null |
aqua_rat
|
The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers ?
|
[
"7",
"8",
"5",
"4"
] |
B
|
Let the numbers be x, x + 2, x + 4, x + 6 and x + 8.
Then [x + (x + 2) + (x + 4) + (x + 6) + (x + 8) ] / 5 = 61.
or 5x + 20 = 305 or x = 57.
So, required difference = (57 + 8) - 57 = 8
Answer: B
|
train
| null |
m1_preference_data
|
In ElGamal signature scheme, if we avoid checking that $0 \leq r < p$ then \ldots
|
[
"\\ldots a universal forgery attack is possible.",
"\\ldots an existential forgery attack is avoided.",
"\\ldots we can recover the secret key.",
"\\ldots we need to put a stamp on the message."
] |
A
| null |
train
| null |
ai2_arc_ARC-Easy
|
Plants have special tissues that transport food, water, and minerals throughout the plant. What are these tissues similar to in animals?
|
[
"stomach and intestines",
"spinal cord and brain",
"arteries and veins",
"kidneys and liver"
] |
C
| null |
train
| null |
aqua_rat
|
Alex deposited x dollars into a new account that earned 7 percent annual interest, compounded annually. One year later Alex deposited an additional x dollars into the account. If there were no other transactions and if the account contained w dollars at the end of two years, which of the following expresses x in terms of w ?
|
[
"w/(1+1.08)",
"w/(1.08+1.16)",
"w/(1.07+1.07^2)",
"w/(1.08^2+1.08^2)"
] |
C
|
Account at the end of the first year would be 1.07x dollars. At this time x dollars was deposited, hence the account at the beginning of the second year would be (1.07x+x) dollars. Account at the end of the second year would be (1.07x+x)*1.07=w --> x(1.07^2+1.07)=w --> x=w/(1.07+1.07^2).
Answer: D.
|
train
| null |
mmlu
|
Coca-Cola is probably the most famous brand in the world, and in some areasyou can even access it easier than clean drinkable water. Although the company is trying to present itself as a health-conscious company, you can't really say that drinking cola is healthy for you. Still, we all drink cola, some more and some less, and we tell ourselves that it's all okay as long as we don't overdo it. However, Coca-Cola has other functions besides drinking. Cola removes the tarnish from old pennies. Got some old rusty pennies? Not to worry! Put them inside a glass of cola and let them rest for a while. When you get them out, you'll have shiny pennies that will look as if they were coined a couple of days ago. If you couldn't clean those pennies with industrial acids, just buy a can of cola and let it do its magic! You can remove gum from your hair with cola. If you've got gum stuck in your hair and don't know a better way to get it out, don't worry, you won't have to cut it. Just pour some cola into a bowl and dip the part of your hair with gum on it inside. Leave it for a couple of minutes and then simply wipe off the gum. You can make an exploding fountain. You probably know about this one. You can make an exploding fountain by putting a mint inside a two-liter bottle. Then move away from the bottle and get ready for a Coca-Cola explosion. This is a fun thing to do, but it is also a warning -- don't eat a mint and drink cola at the same time, because a similar thing could happen to your stomach. Why can't we eat a mint and drink cola at the same time?
|
[
"It can cause harm to our stomach.",
"It might make our stomach smaller.",
"Mints with cola will produce heat.",
"The mint will release poisonous substances."
] |
A
| null |
train
| |
aqua_rat
|
If a2 + b2 + c2 = 941 and ab + bc + ca = 10, then a + b + c is
|
[
"44",
"16",
"32",
"31"
] |
D
|
by formula ,
(a + b + c)^2= a^2 + b^2 + c^2 + 2(ab + bc + ca),
since, a^2 + b^2 + c^2 = 941 and ab + bc + ca = 10,
(a + b + c)^2 = 941 + 2(10)
= 961
=31^2
therefore: a + b + c = 31
ANSWER:E
|
train
| null |
sciq
|
What layer high in the atmosphere protects living things from most of the sun’s harmful uv rays?
|
[
"stratosphere",
"Mesosphere",
"troposphere",
"ozone layer"
] |
D
|
Earth’s atmosphere is vital to life. The atmosphere provides the oxygen and carbon dioxide living things need for photosynthesis and respiration. Living things also need the ozone layer high in the atmosphere. Upper level ozone protects them from most of the Sun’s harmful UV rays.
|
train
| null |
med_mcqa
|
Radiological features in rickets?
|
[
"Cupping of distal end of radius",
"Widening of distal end of metaphvsis",
"Thickening of growth plate",
"All of above"
] |
D
|
Rachitic changes are most easily visualized on posteroanterior radiographs of the wrist, although characteristic rachitic changes can be seen at other growth plates,
Decreased calcification leads to thickening of the growth plate.
The edge of the metaphysis loses its sharp border, which is described as fraying, the edge of the metaphysis changes from a convex or flat surface to a more concave surface. This is termed cupping and is most easily seen at the distal ends of the radius, ulna, and fibula.
There is a widening of the distal end of the metaphysis, corresponding to the clinical observation of thickened wrists and ankles, as well as the rachitic rosary.
Other radiologic features include coarse trabeculation of the diaphysis and generalized rarefaction
|
train
| null |
med_mcqa
|
A 19-year-old primigravida has vaginal bleeding and an enlarged-for-dates uterus. In addition, no fetal heart sounds are heard. The ultrasound is seen in the Illustration. The most likely diagnosis of this woman's condition is
|
[
"Sarcoma botryoides",
"Tuberculous endometritis",
"Adenocarcinoma of the uterus",
"Hydatidiform mole"
] |
D
|
Ans. D. Hydatidiform moleThe history, clinical picture, and ultrasound of the woman in the question are characteristic of hydatidiform mole. The most common initial symptoms include an enlarged-for-dates uterus and continuous or intermittent bleeding in the first two trimesters. Other symptoms include hypertension, proteinuria, and hyperthyroidism. Hydatidiform mole is 10 times as common in the Far East as in North America, and it occurs more frequently in women over 45 years of age. A tissue sample would show a villus with hydropic changes and no vessels. Grossly, these lesions appear as small, clear clusters of grapelike vesicles, the passage of which confirms the diagnosis.
|
train
| null |
med_mcqa
|
Basal cardiac output in an adult is nearly
|
[
"7.5 litre",
"5 litre",
"12 litre",
"10 litre"
] |
B
|
Normal cardiac output= 5L/min
|
train
| null |
med_mcqa
|
The Good prognostic factors of schizophrenia include all except
|
[
"Age 12 yrs",
"Catatonic type",
"Female",
"More positive symptoms"
] |
A
|
Age below 18years, male, insidious onset, simple and hebephrenic are usually bad prognostic factors for schizophrenia Ref: Essentials of postgraduate psychiatry By JN Vyas 1st ed Pg: 370
|
train
| null |
aqua_rat
|
A number, x is chosen at random from the set of positive integers less than 12. What is the probability that (9/x) > x?
|
[
" 2/9",
" 2/11",
" 2/3",
" 7/9"
] |
B
|
Number x has to be chosen from numbers 1-11
(9/x) > x
=> 9 > x^2
=>x^2 - 9 < 0
x can have 2 values only 1 , 2
Therefore , probability = 2 / 11
Answer C
|
train
| null |
ai2_arc_ARC-Easy
|
A student is measuring a liquid in a graduated cylinder. The student is not tall enough to read the measurement at eye level. Which of these is the best action for the student to take to read the measurement correctly?
|
[
"stand on a chair",
"estimate the amount",
"pour out some of the liquid until it is at eye level",
"move the graduated cylinder to a lower table"
] |
D
| null |
train
| null |
med_mcqa
|
Regular inspection of hand files may aid in avoidance of instrument separation. What file defects should be looked for on inspection?
|
[
"Unwinding of the flutes",
"Rolling up or tightening of the flutes",
"Distortion of the tip",
"All of the above"
] |
D
| null |
train
| null |
sciq
|
Why do people build dams and levees?
|
[
"to horde the water",
"prevent flooding",
"increase flooding",
"store drinking water"
] |
B
|
People build dams and levees to protect from flooding. In an emergency, sandbags can be put out.
|
train
| null |
m1_preference_data
|
Which one of these ciphers does achieve perfect secrecy?
|
[
"RSA",
"Vernam",
"DES",
"FOX"
] |
B
| null |
train
| null |
ai2_arc_ARC-Easy
|
Which of the following is an abiotic factor that can influence the quantity of fish a pond can support?
|
[
"availability of plants",
"concentration of bacteria",
"quality of water",
"number of consumers"
] |
C
| null |
train
| null |
mmlu
|
Along with the Great Pyramid of Giza. The Sphinx is one of the most studied ancient monument of mankind's history. The whole complex of Giza, composed of the Sphinx, the Great Pyramid, other pyramids, and distinct structures, definitely holds the key to understanding advanced past civilizations. In the examination of the mystery of the great Sphinx we run into a similar situation. The Egyptians wrote very little about the construction of the Sphinx. However, the Egyptians, Romans, and Arabs did write accounts concerning its numerous restorations, which will be discussed later in this article. In addition, it should be said that other cultures had their form of a Sphinx. For example, the Greek Sphinx was a female with a human head, breast, and the body of a feminine lion. Now there are basically two schools of thought on the origin, the age and the builder of the Sphinx in Egypt. The traditional view of Egyptologists is that Pharaoh Khafre of the Fourth Dynasty built the Sphinx along with the Great Pyramid around 2,500 BC. The evidence is that the face of the Sphinx is thought to look like Pharaoh Khafre. This theory makes the Sphinx about 5,000 years old according to Dr Zahi Hawass, director of Giza Saqqara of the Egyptian Antiquities Organization. The other school of thought doesn't believe that the Egyptians built the Sphinx, but thinks that it was built by an advanced civilization before the Egyptians. The Egyptians came later and built their tombs and temples along the sides of these great structures. This school of thought has been around for hundreds of years, but new buildings give it more _ . Recently, Graham Hancock , the author of the famous book Finger-prints of the Gods and some American scholars have presented certain evidence that challenges the traditional thought on the Sphinx. They present proofs that may cause a rethinking of the so-called fact used to determine who built the Sphinx and the Great Pyramid of Giza and for what purpose. Their proofs consist of basically two pieces of evidence astronomical calculations of the stars and geological evidence that the erosion of the Sphinx and other monuments of Giza was due to water rather than sand, wind or sunshine according to Robert Bauval's book _ . It is this evidence that has turned the Egyptologists' world upside down. Which of the following is the main purpose of the passage?
|
[
"To show the importance of the Sphinx.",
"To tell us two views on the origin of the Sphinx.",
"To introduce an advanced civilization to us.",
"To explain some mysteries of the Sphinx."
] |
B
| null |
train
| |
mmlu
|
A pair of giant pandas from southwest China's Sichuan Province arrived at their new home in Belgium's Pairi Daiza zoo, some 60km southwest of downtown Brussels, at around 15:00 local time (1400GMT) on February 23, 2014. About 2,500 people, many of them excited children waving national flags of China and Belgium as well as panda-decorated flags or wearing costume of Panda greeted the pandas along the road to the zoo. Visitors today can only observe the pandas through a closed-circuit television system in the reception. Officials said they wanted the pandas fully adapted to their new home before making public _ in April. The pandas, Xing Hui, the male and Hao Hao, the female, are both 4 years old and are on lease from a breeding center in southwest China's Sichuan Province. The lease term is 15 years, according to officials with the China Conservation and Research Center for Giant Pandas, the world's largest research base for the species. "It's a good thing for Belgium." Nicole Duflot, a grandmother coming to the zoo with her husband and her grandson told Xinhua, "We can't see the Panda today but it's a great thing for us to come here." The Pandas will be living in a panda hall of 5,300 square meters within the zoo. "I hope Xing Hui and Hao Hao will enhance friendship between Belgium and China." Liao Liqiang, the Chinese ambassador to Belgium, said during an interview with Xinhua. What was the main purpose of China leasing pandas to Belgium?
|
[
"We were supposed to make money from Belgium.",
"We meant to improve the relationship between China and Belgium.",
"We expected to amuse the Belgian children.",
"We wanted to make the pandas adapt to the environment abroad."
] |
B
| null |
train
| |
med_mcqa
|
You decide not to prescribe Sildenafil in a patient because the patient is on an antianginal drug. Which of the following can it be?
|
[
"Calcium channel blockers",
"Beta blockers",
"Organic nitrates",
"ACE inhibitors"
] |
C
|
sildenafil and nitrates are contraindicated to be given in combination since both of them cause vasodilation of vessels and can lead to hypotension. Ref: KD Tripathi 8th ed.
|
train
| null |
ai2_arc_ARC-Easy
|
A teacher demonstrates a chemical reaction. A student observes that the test tube in which the reaction occurs becomes warm. What is the source of the thermal energy generated by the reaction?
|
[
"energy stored in the reactants",
"breaking bonds of the reactants",
"kinetic energy absorbed by the reaction",
"potential energy absorbed by the reaction"
] |
A
| null |
train
| null |
sciq
|
What is the only metal that is a liquid at room temperature?
|
[
"aluminum",
"mercury",
"copper",
"tin"
] |
B
|
The elements mercury, gold, and copper display properties that are common of metals. Mercury ( left ) is the only metal that is a liquid at room temperature. Even in its liquid form, it still has a high luster. Gold ( middle ) is malleable and can be formed into very thin sheets called gold leaf. Because copper ( right ) is ductile, inexpensive, and a good conductor, it is used extensively in electrical wiring.
|
train
| null |
mmlu
|
A federal judge sentenced Bruce Jones to 12 years in federal prison for fraud . Over a 10-year period, Jones had managed to cheat thousands of people throughout the state out of almost $10 million. He advertised his fantastic ideas on TV. "For some reason," Jones said, "TV seems to break the ice. Even though you are a total stranger to the viewer, once he sees you on TV in his home, he feels like he knows you. You enter his living room and become a trusted friend." Jones had an imagination that wouldn't quit. One time he showed viewers an "official government" earthquake report which "proved" that the western half of California would collapse into the sea within three years. For $100, he said, Jones would insure your house and property for full value. Thousands of people who saw that TV ad sent him a hundred dollars each. In another TV ad, Jones claimed that he had come to an agreement with the federal and state government for exclusive air rights. He told viewers that, for only $100, they could own the first 10 miles above all their property. You would be able to charge any commercial plane that flew over your property $100 per crossing. You would also be able to charge government rockets, satellites, space shuttles, and space stations $100 for each and every violation of your air rights. Another time, Jones claimed to have invented a product that gets rid of calories. He showed the viewers a spray can of "NoCal." He said that by simply spraying NoCal on your food, a chemical interaction would cause all the calories in the food to simply disappear within about 10 seconds. The NoCal was only $10 a can. As usual, Jones received thousands of checks in the mail. The judge told Jones that he should be ashamed of himself. Jones responded that he was very ashamed of himself, and that when he got out of prison he hoped to become a TV adviser to help people avoid getting cheated. He told the judge that he was already developing an instructional CD that, for merely $100, would save people thousands of dollars in scams . The judge nodded, and then changed Jones' sentence from 10 years to 12 years. Which of the following statements is TRUE?
|
[
"Jones showed unusual imagination in his tricks.",
"Jones was closely related to the state government.",
"Western California was in danger of going under the sea.",
"Jones felt guilty and was determined to lead a new life."
] |
A
| null |
train
| |
sciq
|
What class of animals, translated as “head foot”, includes octopuses, squids, cuttlefish, and nautilus?
|
[
"crustaceans",
"bivalves",
"cephalopods",
"mollusks"
] |
C
|
The visceral mass in the shelled species is characteristically twisted and the foot is modified for crawling. Most gastropods bear a head with tentacles that support eyes. A complex radula is used to scrape food particles from the substrate. The mantle cavity encloses the ctenidia as well as a pair of nephridia. The class Cephalopoda (“head foot” animals) includes octopuses, squids, cuttlefish, and nautilus. Cephalopods include shelled and reduced-shell groups. They display vivid coloration, typically seen in squids and octopuses, which is used for camouflage. The ability of some octopuses to rapidly adjust their colors to mimic a background pattern or to startle a predator is one of the more awe-inspiring feats of these animals. All animals in this class are predators and have beaklike jaws. All cephalopods have a well-developed nervous system, complex eyes, and a closed circulatory system. The foot is lobed and developed into tentacles and a funnel, which is used for locomotion. Suckers are present on the tentacles in octopuses and squid. Ctenidia are enclosed in a large mantle cavity and are serviced by large blood vessels, each with its own heart. Cephalopods (Figure 15.27) are able to move quickly via jet propulsion by contracting the mantle cavity to forcefully eject a stream of water. Cephalopods have separate sexes, and the females of some species care for the eggs for an extended period of time. Although the shell is much reduced and internal in squid and cuttlefish, and absent altogether in octopus, nautilus live inside a spiral, multi-chambered shell that is filled with gas or water to regulate buoyancy.
|
train
| null |
aqua_rat
|
In a class 30 students play cricket, 40 students play football and 20 play none of the two games.
If there are 80 students exactly in the class, how many play exactly ONE of the two games?
|
[
"40",
"50",
"85",
"90"
] |
B
|
n(C) = 30, n(F) = 40 and n(C' or F') = 20
=> n(C or F) = 80 - 20 = 60
also, n(C or F) = n(C) + n(F) - n(C and F)
=> 60 = 30 + 40 - n(C and F)
i.e. n(C and F) = 10
so, 30 - 10 = 20 students play just football and 40 - 10 = 30 students play just cricket
=> 20 + 30 = 50 students play exactly ONE game
B)
|
train
| null |
med_mcqa
|
The PEFR of a group of 11 year old girls follow a normal distrubution with mean 300 1/min and standard detion 20 limin -
|
[
"About 95% of the girls have PEFR between 260 and 340 1/min.",
"The girls have healthy lungs",
"About 5% of girls have PEFR below 260 1/min.",
"All the PEFR must be less than 340 1/min"
] |
A
|
Ans. is 'a' i.e., About 95% of the girls have PEFR between 260 and 340 1/min o 1 SD includes --> 68% of values o 2 SD includes --> 95% of values o 3 SD includes --> 99.7% of values In this question Mean PEFR = 300 L/min SD = 2 L/min i) Area around 1 SD on either side of mean (x 1 SD) will include 68% of values, i.e. x+-1SD=300+-20 So, 68% of girls have PEFR between 280 & 320 L/min. ii) Area around 2SD on either side of mean (x 2SD) will include 95% of values, i.e. x+ 2SD=300+-40 So, 95% of girls have PEFR between 260 & 340 L/min. iii) Area around 3SD on either side of mean (x 3SD) will include 99.7% of values, i.e. - x+-3SD =300+ 60 So, 99.7% ofgirls will have PEFR between 240 & 360 L/min.
|
train
| null |
ai2_arc_ARC-Challenge
|
Why is it better to wear a white T-shirt than a dark blue T-shirt in the summer?
|
[
"Light-colored clothes let more air in.",
"Light-colored clothes prevent sweating.",
"Light-colored clothes are not as heavy as dark-colored clothes.",
"Light-colored clothes reflect more sunlight than dark-colored clothes."
] |
D
| null |
train
| null |
mmlu
|
People are being lured onto Facebook with the promise of a fun, free service, and don't realize that they're paying for it by giving up loads of personal information. Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages. Most Facebook users don't realize this is happening. Even if they know what the company is up to, they still have no idea what they're paying for Facebook, because people don't really know what their personal details are worth. The biggest problem, however, is that the company keeps changing the rules. Early on, you could keep everything private. That was the great thing about Facebook--you could create your own little private network. Last year, the company changed its privacy rules so that many things--your city, your photo, your friends' names--were set, by default , to be shared with everyone on the Internet. According to Facebook's vice president Elliot Schrage, the company is simply making changes to improve its service, and if people don't share information, they have a "less satisfying experience." Some critics think this is more about Facebook looking to make more money. Its original business model, which involved selling ads and putting them at the side of the page, totally failed. Who wants to look at ads when they're online connecting with their friends? The privacy issue has already landed Facebook in hot water in Washington. In April, Senator Charles Schumer called on Facebook to change its privacy policy. He also urged the Commission to set guidelines for social-networking sites. "I think the senators rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them," Schrage admits. I suspect that whatever Facebook has done so far to invade our privacy, it's only the beginning,which is why I'm considering deactivating my account . Facebook is a handy site, but I'm upset by the idea that my information is in the hands of people I don't trust. That is too high a price to pay. Why does Facebook make changes to its rules according to Elliot Schrage?
|
[
"To help its users make more friends",
"To obey the Federal guidelines",
"To make money by attracting more users",
"To offer better service to its users"
] |
D
| null |
train
| |
med_mcqa
|
Ogive is -
|
[
"Bar cha",
"Histogram",
"Cumulative frequency curve",
"Frequency polygon"
] |
C
|
Ans. is 'c' i.e., Cumulative frequency curve Cumulative frequency diagram (OGIVE) o Cumulative relative frequency or cumulative percentage, gives the percentage of persons having a measurement less than or equal to the upper boundary of the class interval. Weight interval (lb) Frequency Relative frequency Cumulative relatives frequency 10-19 5 8.8 8.8 20-29 19 33.3 42.1 30-39 10 17.5 59.6 40-49 13 22.8 82.4 50-59 4 7.0 89.4 60-69 4 7.0 96.4 70-79 2 3.5 99.9 100% Total 57 100 The last column of above table shows the cumulative relative frequency or cumulative percentage. This column is easy to form, you do it by successively accumulating the relative frequencies of each of the various intervals. In the above table the cumulative percentage for the first three intervals is 8.8 + 33.3 + 17.5 = 59.6 and we can say that 59.6% of the children in the data set have a weight of 39.5 lb or less. Or, as another example, 96.4% of children weight 69.5 lb or less. The cumulative relative frequency can be presented graphically. This type of curve is called a cumulative frequency graph or OGIVE. To construct such a graph, we place a point representing the cumulative relative frequency and the points are connected with straight lines. The cumulative frequency graph provides a class of impoant statistics known as percentiles or percentile scores. For example, the 90th percentile is the numerical value that exceeds 90% of the values in the data set and is exceeded by only 10% of them. As another example, the 80th percentile is that numerical value that exceeds 80% of the values contained in the data set and is exceeded by 20% of them, and so on. The 50th percentile is commonly called the median. Uses of Cumulative frequency graph When two cumulative frequency graph, representing two different data sets, are placed on the same graph, they provide a rapid visual comparison without any need to compare individual intervals. Cumulative frequency graph provides an impoant application in the formation of health norms for the monitoring of physical process (weight and height) of infants and children.
|
train
| null |
ai2_arc_ARC-Challenge
|
What is the most common element found in the compounds that make up ocean water?
|
[
"nitrogen",
"oxygen",
"carbon",
"silicon"
] |
B
| null |
train
| null |
ai2_arc_ARC-Challenge
|
Many products are made from trees. Which is the best way to manage the use of trees?
|
[
"cut down most of the trees from forests",
"build more lumber mills",
"reduce the amount of recycled paper",
"plant a tree each time one is cut down"
] |
D
| null |
train
| null |
m1_preference_data
|
Which of the following is a mode of operation for blockciphers that requires a non-repeating IV (a nonce) to be secure?
|
[
"ECB",
"CBC",
"TCS",
"CTR"
] |
D
| null |
train
| null |
mmlu
|
Dominique obtained a bid of $10,000 to tear down her old building and another bid of $90,000 to replace it with a new structure in which she planned to operate a sporting goods store. Having only limited cash available, Dominique asked Hardcash for a $100,000 loan. After reviewing the plans for the project, Hardcash in a signed writing promised to lend Dominique $100,000 secured by a mortgage on the property and repayable over ten years in equal monthly installments at 10% annual interest. Dominique promptly accepted the demolition bid and the old building was removed, but Hardcash thereafter refused to make the loan. Despite diligent efforts, Dominique was unable to obtain a loan from any other source. For this question only, assume that Dominique has a cause of action against Hardcash. If she sues him for monetary relief, what is the probable measure of her recovery?
|
[
"Expectancy damages, measured by the difference between the value of the new building and the old building, less the amount of the proposed loan ($100,000). ",
"Expectancy damages, measured by the estimated profits from operating the proposed sporting goods store for ten years, less the cost of repaying a $100,000 loan at 10% interest over ten years. ",
"Reliance damages, measured by the $10,000 expense of removing the old building, adjusted by the decrease or increase in the market value of Dominique's land immediately thereafter. ",
"Nominal damages only, because both expectancy and reliance damages are speculative, and there is no legal or equitable basis for awarding restitution. "
] |
C
| null |
train
| |
aqua_rat
|
In a graduate physics course, 60 percent of the students are male and 30 percent of the students are married. If two-sevenths of the male students are married, what fraction of the female students is single?
|
[
"2/7",
"1/2",
"27/40",
"5/7"
] |
C
|
let assume there are 100 students of which 60 are male and 40 are females
if 30 are married then 70 will be single.
now its given that two-sevenths of the male students are married that means 2/7 of 60 = 17 males are married
if 30 is the total number of students who are married and out of that 17 are males then the remaining 13 will be females who are married.
total females = 40
married females = 13
then single females = 40-13 = 27
we need to find the fraction of female students who are single i.e single female students / total female student
= 27/40 [D]
|
train
| null |
sciq
|
All of the stages that a cell goes through make up what?
|
[
"photosynthesis",
"glycolysis",
"the cell cycle",
"cytokineses"
] |
C
|
Cell division is just one of the stages that a cell goes through during its lifetime. All of the stages that a cell goes through make up the cell cycle .
|
train
| null |
aqua_rat
|
If a, b and c are even integers, which of the following could be the value of a^2 + b^2 + c^2?
|
[
"a)98",
"c)102",
"d)204",
"e)202"
] |
C
|
a, b and c are even integers which means that, supposing that x, y and z are integers, then a=2x, b=2y and c=2z
Therefore we have: a^2+b^2+c^2=2^2*x^2+2^2*y+2^2*z=4x^2+4y^2+4z^2=4(x^2+y^2+z^2).
Which means that the total a^2+b^2+c^2 must be divisible by 4.
The only choice which is divisible by 4 is: D)
204=10^2+10^2+2^2
Answer: D.
|
train
| null |
mmlu
|
Scientists are worried that an asteroid will possibly hit the earth in 2036. If scientists are right, planet earth is 24 years away from a major disaster. Scientists have been monitoring the progress of a 390-metre-wide asteroid ever since it was discovered last June. They have announced that it could hit the earth, causing huge damage, in 2036. NASA estimates that the impact from the asteroid named after Apophis and ancient Egyptian demon would release more than 100,000 times the energy released in the nuclear explosion over Hiroshima. Thousands of square kilometers would be directly affected by the explosion. The whole planet would see the effects of the dust released into the atmosphere. This is the worst possible scenario of any asteroid in recorded history. Having more than 20 years' warning of possible impact might seem plenty of time. But scientists insist that there is actually very little time left to decide. Luckily, however, they aren't short on ideas for the asteroid. The favored method is also probably the easiest--throwing a spacecraft at the asteroid to change its direction. The European Space Agency plans to test this in the next decade. One idea that seems to have no support from astronomers is the use of explosive, although this sounds more likely to the public or Hollywood producer. At present, scientists are trying to make a better estimate of how much time we have, through more observations. In spring of next year, there will be another chance for radar observation of Apophis. This will help astronomers calculate the orbits of the asteroid more accurately. If, at that stage, they can't rule out an impact with the earth in 2036, the next chance to make better observations will not be until 2016, then 2029. "If we wait until 2029 and the worst--case scenario turns out to be true, it would seem unlikely that we'd be able to do anything about 2036," warns Prof Fitzsimmons. What is the impact from Apophis if it hits the earth?
|
[
"It will damage Hiroshima.",
"Thousands of square kilometers would see the effects of the dust released into the atmosphere.",
"It might be the worst damage caused by asteroids in recorded history.",
"The whole planet would be directly affected by the explosion."
] |
C
| null |
train
| |
ai2_arc_ARC-Easy
|
Which of the following correctly orders part of a fish's respiratory system from the least complex to most complex?
|
[
"cells -> gills -> tissues",
"cells -> tissues -> gills",
"gills -> tissues -> cells",
"tissues -> gills -> cells"
] |
B
| null |
train
| null |
aqua_rat
|
One pump drains one-half of a pond in 7 hours, and then a second pump starts draining the pond. The two pumps working together finish emptying the pond in one-half hour. How long would it take the second pump to drain the pond if it had to do the job alone?
|
[
"1.1 hour",
"3 hours",
"5 hours",
"6 hours"
] |
A
|
First pump drains 1/2 of the tank in 7 hours
so 14 hours it will take to drain the full tank.
Let, 2nd pump drains the full tank in a hours
so both together can drain (1/14+1/a) part in 1 hour
son in 1/2 hour they drain 1/2*(1/14+1/a) part of the tank
given that in 1/2 hour they drain 1/2 of the tank
hence we can say
1/2*(1/14+1/a) = 1/2
solving u get a = 14/13=1.1
Hence answer is B
|
train
| null |
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