question stringlengths 1 1.57k | dataset stringclasses 6
values | choices listlengths 3 5 | answer stringclasses 4
values | explanation stringlengths 0 9.78k |
|---|---|---|---|---|
What is the most useful quantity for counting particles? | allenai/sciq | [
"the vector",
"the coefficient",
"the mole",
"the periodic table"
] | C | The most useful quantity for counting particles is the mole. So if each coefficient is multiplied by a mole, the balanced chemical equation tells us that 1 mole of nitrogen reacts with 3 moles of hydrogen to produce 2 moles of ammonia. This is the conventional way to interpret any balanced chemical equation. |
Each megasporangium has a single functional one of what? | allenai/sciq | [
"antispore",
"megaspore",
"spicule",
"cocklebur"
] | B | |
What is used for cooling detectors of infrared telescopes? | allenai/sciq | [
"carbon dioxide",
"liquid nitrogen",
"hand nitrogen",
"material nitrogen"
] | B | Detecting Electromagnetic Waves from Space A final note on star gazing. The entire electromagnetic spectrum is used by researchers for investigating stars, space, and time. As noted earlier, Penzias and Wilson detected microwaves to identify the background radiation originating from the Big Bang. Radio telescopes such ... |
A crater can usually be found on the top of what kind of volcanoes? | allenai/sciq | [
"composite",
"Compound",
"Dome",
"Shield"
] | A | Composite volcanoes usually have craters on the top. Why are the craters sometimes “U” or horseshoe-shaped?. |
All cause malabsorption syndrome except: | openlifescienceai/medmcqa | [
"Giardiasis",
"Ascaris",
"S trongyloides",
"Capillaria phillipinesis"
] | B | Ans. (b) Ascaris Ref. Journal of digestive disease and sciences 53(3) March 2008 672-679 Giardia lamblia (MC) * Giardia lamblia (MC) E. histolytica/dispar Cryptosporidium Ankylostoma duodenale E. histolytica/dispar H. nana A. duodenale Stronglyloids* Capillaria philipinesis** |
During strenuous exercise our muscles perform what kind of fermentation? | allenai/sciq | [
"nitric acid",
"excessive acid",
"residual acid",
"lactic acid"
] | D | Animals and some bacteria and fungi carry out lactic acid fermentation. Lactic acid is a waste product of this process. Our muscles perform lactic acid fermentation during strenuous exercise, since oxygen cannot be delivered to the muscles quickly enough. The buildup of lactic acid is believed to make your muscles sore... |
What is released to lubricate the vagina to facilitate intercourse? | allenai/sciq | [
"vaginal secretions",
"urine",
"blood",
"semen"
] | A | The vagina is a muscular tube that serves several purposes. It allows menstrual flow to leave the body. It is the receptacle for the penis during intercourse and the vessel for the delivery of offspring. It is lined by stratified squamous epithelial cells to protect the underlying tissue. Sexual Response during Interco... |
True about epidural opioids are all except: | openlifescienceai/medmcqa | [
"Act on dorsal horn substantia gelatinosa",
"Can cause Itching",
"Function of the intestine is not affected",
"Can cause respiratory depression"
] | C | Ans. (C) Function of the intestine is not affected(Ref: Katzung 11/e p542)Because of their direct action on the superficial neurons of the spinal cord dorsal horn, opioids can also be used as regional analgesics by administration into the epidural or subarachnoid spaces of the spinal column.It was initially assumed tha... |
Signs in many stores and restaurants warn that microwaves are in use. What is the main reason for this warning? | allenai/ai2_arc | [
"Some people do not like food cooked in microwave ovens.",
"Microwaves sometimes affect people's sense of sight.",
"Microwaves sometimes cause hair or teeth to fall out.",
"Some people have pacemakers that may be affected by microwaves."
] | D | |
Embryonic phase of development is from - | openlifescienceai/medmcqa | [
"1-3 weeks",
"4th to 8th week",
"0-4thweek",
"6th to 9th week"
] | B | Ans. is 'b' i.e., 4th to 8th week * The development of a new individual in the uterus involves three phasesi) Pre-embro phase or germinal phase (day 0-3 weeks).ii) Embro phase or embryonic period (weeks 4-8).iii) Fetal phase (weeks 8-38). |
Janexi covered a distance of 340 miles between city A and city B taking a total of 5 hours. If part of the distance was covered at 60 miles per hour speed and the balance at 80 miles per hour speed, how many hours did she travel at 60 miles per hour? | deepmind/aqua_rat | [
"1 hour 45 minutes",
"2 hours",
"2 hours 30 minutes",
"3 hours"
] | D | Janexi covered a distance of 340 miles between city A and city B taking a total of 5 hours. time taken at 60:time taken at 80::(greater speed-average speed):(average speed-lower speed)
average speed is 340/5=68
That gives the answer 3:2=D |
Probability can be used to predict the chance of gametes and offspring having certain what? | allenai/sciq | [
"particles",
"molecules",
"alleles",
"atoms"
] | C | Probability can be used to predict the chance of gametes and offspring having certain alleles. |
Which change is most likely caused by a thunderstorm? | allenai/ai2_arc | [
"a glacier moving",
"a stream flooding",
"a volcano erupting",
"a mountain forming"
] | B | |
Cause of secondary dysmenorrhea in a young female : | openlifescienceai/medmcqa | [
"TB",
"Subserous fibroid",
"Endometriosis",
"All"
] | D | Ans. is a, d and c i.e. Tuberculosis; Endometriosis; and Subserous fibroid Dysmenorrhea means painful menstruation of sufficient magnitude so as to incapacitate day to day activities. Primary (Spasmodic) There is no identifiable pelvic pathology Spasmodic dysmenorrhea manifests as cramping pain most pronounced on the f... |
Animals adapt to their what? | allenai/openbookqa | [
"appearance",
"feet",
"skin",
"nature places"
] | D | |
In the context of immunohistochemistry, why is it important to use a blocking step before the application of primary antibodies? | mvujas/stem_mcqa_questions | [
"To enhance the binding affinity of the primary antibodies",
"To prevent non-specific binding of antibodies to tissue sections",
"To decrease the degradation rate of primary antibodies",
"To increase the reaction speed of the staining process"
] | B | The blocking step in immunohistochemistry involves the application of a solution containing proteins or other blocking agents to the tissue sections. This step is crucial because it helps to block non-specific binding sites that could attract the primary antibodies. Without this step, primary antibodies may bind to non... |
Kim lost her hammer outside. When she found it a few months later, some parts of the metal were covered with flaky, brown rust. Which type of change occurred when rust formed on the hammer? | allenai/ai2_arc | [
"chemical",
"electrical",
"thermal",
"physical"
] | A | |
If the price of a TV is first decreased by 20% and then increased by 40%, then the net change in the price will be : | deepmind/aqua_rat | [
"4% increase",
"12% increase",
"10% decrease",
"6% increase"
] | B | Explanation :
Solution: let the original price be Rs. 100.
New final price = 140% of(80% of 100) =Rs. 140/100 * 80/100 * 100 = Rs. 112.
.'. Increase = 12%
Answer : B |
In which organ are bile acids made | allenai/sciq | [
"liver",
"gall bladder",
"kidney",
"spleen"
] | A | Bile salts are bile acids that help to break down fat. Bile acids are made in the liver. When you eat a meal, bile is secreted into the intestine, where it breaks down the fats ( Figure below ). |
What are two of the most common vision problems? | allenai/sciq | [
"myopia and nearsightedness",
"cross-eye and blindness",
"nearsightedness and farsightedness",
"blindness and astigmatism"
] | C | Many people have vision problems. Often, the problem is due to the shape of the eyes and how they focus light. Two of the most common vision problems are nearsightedness and farsightedness. |
Rademecker complex in EEG is seen in - | openlifescienceai/medmcqa | [
"SSPE",
"vCJD",
"cCJD",
"Kuru"
] | A | Answer- A. SSPECharacteristic periodic activity (Rademecker complex) is seen on EEG showing widespread coical dysfunction in SSPE.It is characterised by high voltage spike occuning at higlr lrequency of 0.5- 1.5 seconds. |
What part of the brain is attached to the brain stem but considered a separate region of the adult brain? | allenai/sciq | [
"temporal lobe",
"cerebellum",
"frontal lobe",
"parietal lobe"
] | B | Brain Stem The midbrain and hindbrain (composed of the pons and the medulla) are collectively referred to as the brain stem (Figure 13.12). The structure emerges from the ventral surface of the forebrain as a tapering cone that connects the brain to the spinal cord. Attached to the brain stem, but considered a separate... |
What consists of all the biotic and abiotic factors in an area and their interactions? | allenai/sciq | [
"ecosystem",
"community",
"habitat",
"macroevolution"
] | A | An ecosystem consists of all the biotic and abiotic factors in an area and their interactions. |
Which likely has the highest force exerted upon it? | allenai/openbookqa | [
"the palm of your hand",
"a pillow for sleeping",
"a home run baseball",
"a button on a keyboard"
] | C | |
A child want to buy 3 new toys. If there are 10 toys that satisfy the child's criteria,in how many different ways can the child select the 3 new toys if the order of selection doesn't matter. | deepmind/aqua_rat | [
"20",
"120",
"210",
"15"
] | B | The number of ways of choosing 3 toys out of 10 are counted by = 10C3 ways = 120
Answer: Option B |
In many polychaetes, the parapodia are richly supplied with blood vessels and also function as what? | allenai/sciq | [
"pores",
"tails",
"scales",
"gills"
] | D | |
If 3 people a,b,c can do a work simultaneously in 6 days. a and b can do work in 10 days. b and c can do work in 15 days. c and a can do the same work in 20 days.In how many days that a can complete the same work alone? | deepmind/aqua_rat | [
"20",
"25",
"30",
"24"
] | D | a+b+c=1/6(one day work)
a+b=1/10;b+c=1/15;c+a+1/20
b=1/15-c;c=1/20-a;---------(2)
substitute equation 2 in a+b=1/10
a=1/10-b;a=1/10-1/15+c;
a=1/10-1/15+1/20-a;
2a=1/10-1/15+1/20;
a=1/24(one day work)
That is the no of days that a can work alone is 24 days
The option D is answer |
Chewing insects such as dragonflies and grasshoppers have how many sets of jaws? | allenai/sciq | [
"four",
"two",
"three",
"one"
] | B | If all three bulbs are set a full intensity, the person sees __________. |
What would cause warm receptors to signal the hypothalamic thermostat? | allenai/sciq | [
"increased temperature",
"hypothermia",
"hyperventilation",
"lower temperature"
] | A | |
We will eventually exhaust our supply of | allenai/openbookqa | [
"water",
"coal",
"air",
"time"
] | B | |
Ovulation is presumed to have occurred if progesterone level is __________ on day 21 | openlifescienceai/medmcqa | [
"0.3 ng / mL",
"3 ng / mL",
"30 ng / mL",
"300ng / mL"
] | B | Ovulation can be safely assumed to have occurred if progesterone level exceeds 3 ng / mL on cycle day 21. |
A needle lined with magnets will pull north. If north is to the right and you want to go west, you'd walk | allenai/openbookqa | [
"straight",
"left",
"backwards",
"right"
] | A | |
Some creatures can bring in prey by providing a source of light, such as | allenai/openbookqa | [
"Lophiiformes",
"giant squid",
"sharks",
"crawfish"
] | A | |
What functions as a framework that reinforces the shape of the leaf? | allenai/sciq | [
"the vascular structure",
"the stylised structure",
"the normal structure",
"the central structure"
] | A | |
In development of male fetus following statements are true except | openlifescienceai/medmcqa | [
"Gene on sho arm of Y chromosome directs tests on development",
"During intrauterine life testes has no endocrine role in fetus",
"Around 8 weeks internal and external genitalia differentiates into male pattern",
"Antimullerian hormone inhibits development of mullerian system in male fetus"
] | B | In males, the sex-specific gene SRY that is found on the Y-chromosome initiates sex determination by downstream regulation of sex-determining factors, (such as GATA4, SOX9, and AMH), which leads to development of the male phenotype, including directing development of the early bipotential gonad down the male path of de... |
Although individuals of a given species are genetically similar, they are not identical; every individual has a unique set of these? | allenai/sciq | [
"chromosomes",
"mutations",
"habits",
"traits"
] | D | The generation of genetic maps requires markers, just as a road map requires landmarks (such as rivers and mountains). Early genetic maps were based on the use of known genes as markers. More sophisticated markers, including those based on non-coding DNA, are now used to compare the genomes of individuals in a populati... |
Capillaries rejoin to form venules, which convey blood to what? | allenai/sciq | [
"extremities",
"veins",
"arteries",
"glands"
] | B | |
Cephalic phase of gastric secretion: March 2013 | openlifescienceai/medmcqa | [
"Local hormones",
"Gastric distension",
"Nervous mechanism",
"Presence of food in stomach"
] | C | Ans. C i.e. Nervous mechanismThe cephalic phase of gastric juice secretionThiy percent of the total gastric acid secretions to be produced is stimulated by anticipation of eating and the smell or taste of food.This signalling occurs from higher centres in the brain through the Vagus Nerve.It activates parietal cells to... |
What kind of equal and opposite forces cancel one another out when they act on the same object? | allenai/sciq | [
"exact",
"combined",
"solid",
"balanced"
] | D | You might think that actions and reactions would cancel each other out like balanced forces do. Balanced forces, which are also equal and opposite, cancel each other out because they act on the same object. Action and reaction forces, in contrast, act on different objects, so they don’t cancel each other out and, in fa... |
Saturated hydrocarbons are given the general name of what? | allenai/sciq | [
"enzymes",
"carbohydrates",
"lipids",
"alkanes"
] | D | Saturated hydrocarbons are given the general name of alkanes. The name of specific alkanes always ends in –ane and has a prefix to indicate how many carbon atoms it has. |
A carbonated beverage contains dissolved what? | allenai/openbookqa | [
"steel",
"plastids",
"plastic",
"carbonic anhydride"
] | D | |
If someone is dying of thirst, they can hydrate by | allenai/openbookqa | [
"drink acid",
"visiting a valley",
"find snow",
"catching rain"
] | D | |
Klinefelter syndrome karyotype is- | openlifescienceai/medmcqa | [
"47XXX",
"45X0",
"47XXY",
"46XX\\/145X0"
] | C | harshmohan textbook of pathology 7th edition. *klinefelter'syndrome is an example of sex chromosome trisomy 47,XXX karyotype |
At a certain company, each employee has a salary grade s that is at least 1 and at most 5. Each employee receives an hourly wage p, in dollars, determined by the formula p = 9.50 + 0.25(s – 1). An employee with a salary grade of 5 receives how many more dollars per hour than an employee with a salary grade of 2? | deepmind/aqua_rat | [
"$0.50",
"$0.75",
"$1.25",
"$1.50"
] | B | Salary grade of 5 is p(5)=9.50+0.25(5–1)=9.50+0.25*4;
Salary grade of 2 is p(2)=9.50 + 0.25(2–1)=9.50+0.25;
p(5)-p(2)=9.50+0.25*4-9.50-0.25=0.75.
Answer: B. |
What are the three forms of water as found in nature? | allenai/sciq | [
"solid, liquid, gas",
"solid , mixture , gas",
"balanced , liquid , gas",
"ice, vapor, sleet"
] | A | |
A certain company’s profit in 1996 was 20 percent greater than its profit in 1995, and its profit in 1997 was 20 percent greater than its profit in 1996. The company’s profit in 1997 was what percent greater than its profit in 1995? | deepmind/aqua_rat | [
"5%",
"18%",
"33%",
"44%"
] | D | Profit in 1995 - 100
Profit in 1996 - 120
%increae Profit in 1997 in comparison to 1995 = 20 + 120*20%= 44
Correct Option : D |
Aspirin and ibuprofen reduce pain by inhibiting the synthesis of what? | allenai/sciq | [
"hormones",
"lipids",
"triglycerides",
"prostaglandins"
] | D | |
In the context of the theory of simple singularities, also known as ADE classification, which of the following is not one of the simple Lie algebras associated with simple singularities? | mvujas/stem_mcqa_questions | [
"\\( A_n \\)",
"\\( D_n \\)",
"\\( E_6 \\)",
"\\( F_4 \\)"
] | D | Simple singularities can be classified using the ADE classification, which corresponds to certain Lie algebras. Specifically, these singularities correspond to the following Lie algebras: \( A_n \) (also known as type I), \( D_n \) (also known as type II), and \( E_6, E_7, \) and \( E_8 \) (also known as type III). The... |
Whipple's is disease is caused by:- | openlifescienceai/medmcqa | [
"Bacteroides",
"Acinetobacter",
"H.pyori",
"Tropheryma whippelii"
] | D | - Whipple's is disease is caused by a bacteria called Tropheryma whippelii - H.pylori results in chronic gastritis & peptic ulcer disease. |
Injury to the common peroneal nerve at the lateral aspect of head of fibula results in all of the following except: | openlifescienceai/medmcqa | [
"Weakness of ankle dorsi-flexion",
"Foot drop",
"Loss of ankle reflex",
"Sensory impairment on lateral aspect of leg extending to the dorsum of foot."
] | C | C i.e. Loss of ankle reflex |
Aspirin in very low doses inhibits the formation of: September 2006 | openlifescienceai/medmcqa | [
"Cyclooxygenase",
"Thromboxane A2",
"Prostaglandin 12",
"None of the above"
] | B | Ans. B: Thromboxane A2 |
Rotting fish urine odour is seen in? | openlifescienceai/medmcqa | [
"Hawkinsuria",
"Phenylketonuria",
"MSUD",
"Trimethylaminuria"
] | D | Maple syrup urine disease Maple syrup/Burnt sugar Hypermethioninemia Boiled cabbage Multiple carboxylase deficiency Tomcat urine Oasthouse urine disease Hopslike Phenylketonuria Mousy or musty Trimethyl aminuria Rotting fish Tyrosinemia Boiled cabbage, rancid butter |
Which of these conditions would most likely be shown in the fossil record as a reason for mass extinctions? | allenai/ai2_arc | [
"increased competition for resources",
"falling sea levels and global cooling",
"organisms with beneficial traits",
"increased solar activity"
] | B | |
All of the following drugs can be used in the management of hypeensive crises Except? | openlifescienceai/medmcqa | [
"Hydralazene",
"Trimethophan",
"Nifedipine",
"Indapamide"
] | D | Answer is D (Indapamide) Indapamide is a mild diuretic that may be used for treatment of mild to moderate hypeension It is not effective for the treatment of hypeensive urgencies or emergencies where rapid reduction of blood pressure is required. Indapamide is the single best answer of exclusion. Trimethophan (KDT 6th/... |
What do you call compounds that have covalent bonds? | allenai/sciq | [
"covalent compounds",
"ions",
"valence compound",
"reflectivity compounds"
] | A | Covalent bonds are bonds in which atoms share rather than transfer electrons. Compounds with covalent bonds are called covalent compounds. |
Behaviors that are closely controlled by genes and have little to no environmental influence are called what kinds of behaviors? | allenai/sciq | [
"learned behaviors",
"diverse behaviors",
"innate behaviors",
"generalized behaviors"
] | C | Behaviors that are closely controlled by genes with little or no environmental influence are called innate behaviors . These are behaviors that occur naturally in all members of a species whenever they are exposed to a certain stimulus . Innate behaviors do not have to be learned or practiced. They are also called inst... |
The usual kind of weather in a location is called what? | allenai/openbookqa | [
"warmth",
"fog",
"zone conditions",
"visibility"
] | C | |
Torus Aoicus is present in | openlifescienceai/medmcqa | [
"Right Atrium",
"Right Ventricle",
"Left Ventricle",
"Left Atrium"
] | A | Torus aoicus is the prominent region of the right atrial septum, which marks the projection of the non-coronary aoic sinus into the right atrial wall. The bulge is superior to the coronary sinus and anterior to the fossa ovalisReference: Vishram Singh Anatomy; 2nd edition; Page no: 265 |
Xenograft is transplantation of tissue: FMGE 10 | openlifescienceai/medmcqa | [
"From a different species",
"From same species",
"From genetically identical twins",
"From one pa of body to another"
] | A | Ans. From a different species |
The smallest particle of an element is | allenai/ai2_arc | [
"an atom.",
"a mixture.",
"a molecule.",
"a compound."
] | A | |
In the context of software testing, which of the following best describes the concept of \"black-box testing\"? | mvujas/stem_mcqa_questions | [
"Testing the internal structures or workings of an application",
"Testing the end-user functionalities without knowledge of the internal workings",
"Testing the applications with detailed knowledge of the code, architecture, and logic",
"Testing performed by the original developers who wrote the code"
] | B | Black-box testing is a method where the tester evaluates the software's functionalities without having any knowledge of the internal workings, architecture, or code. The tester focuses on input and output rather than how the application processes data internally. This type of testing is primarily conducted to ensure th... |
Which is true? | allenai/openbookqa | [
"balloons and stars are composed of exactly the same materials",
"balloons and stars are the same size",
"stars and balloons share some of the same gases",
"balloons and stars contain sodium"
] | C | |
Acrodynia is associated with - | openlifescienceai/medmcqa | [
"Mercury (Hg)",
"Phenolic acid",
"Oxalic acid",
"Carbolic acid poisoning"
] | A | Chronic poisoning * Also called as hydrargyrism, mercurialism * Excessive salivation (Ptyalism, Sialorrhea) * Metallic taste * Anorexia * Insomnia * Headache * Gingivitis * Halitosis * Blue line on gums * Lassitude * Visual blurring * Concentric constriction of visual field (tunnel vision) * Mercuria lentis - opacities... |
A 3- year old boy is brought to the casualty by his mother with progressive shoness of breath for 1 day. The child has history of bronchial asthma. On examination , the child is blue, gasping and unresponsive What will you like to do first ? | openlifescienceai/medmcqa | [
"Intubate",
"Administer 100 % oxygen by mask",
"Ventilate with bag and mask",
"Administer nebulised salbutamol"
] | B | Ans. is 'b' i.e., Administer 100% 02 by mask o The symptoms given by the child shows that he is suffering from life threatening asthma. o Presence of any of the following indicates life threatening Asthma. a) Cyanosis b) Silent chest c) Poor respiratory effects d) Altered sensorium e) Exhauston, fatigue f) PEFR < 30 % ... |
Which of the following best characterizes alveolar ventilation and blood flow at the base, compared with the apex, of the lungs of a healthy standing person? | openlifescienceai/medmcqa | [
"Ventilation - Higher, Blood flow - Higher, V/Q ratio - Lower",
"Ventilation - Lower, Blood flow - Higher, V/Q ratio - Higher",
"Ventilation - Lower, Blood flow - Lower, V/Q ratio - Lower",
"Ventilation - Higher, Blood flow - Lower, V/Q ratio - Higher"
] | A | Ans. A. Ventilation - Higher, Blood flow - Higher, V/Q ratio - LowerAt the base, both airflow and blood flow are higher; however, blood flow exceeds airflow at the base, which results in a low V.A/Q. ratio. At the apex, blood flow and airflow are lower than at the base, but airflow is greater than blood flow, which lea... |
Much of what type of radiation that strikes the planet is reflected back into space? | allenai/sciq | [
"magentic radiation",
"gamma rays",
"solar radiation",
"microwaves"
] | C | |
Members of rock bands often perform with | allenai/openbookqa | [
"flutes",
"sandals",
"earplugs",
"gloves"
] | C | |
What type of sunlight inhibits vertical growth in a plant? | allenai/sciq | [
"infrared",
"direct",
"indirect",
"reduced"
] | B | |
The moon has many craters on the surface due to space rocks | allenai/openbookqa | [
"candy canes",
"bumping into it",
"rain drops",
"cats"
] | B | |
If Dale works at full efficiency he needs a break of 1 day after every 2 days of work and he completes a job in a total of 20 days. If he works at reduced efficiency, he can work without break and finish that same job in 20 days. Dale's output at reduced efficiency is what fraction of his output at full efficiency? | deepmind/aqua_rat | [
"7/3",
"5/2",
"6/5",
"1/5"
] | A | We're told that there are 2 ways for Dale to complete a job:
1) Full Efficiency: 2 days of work followed by 1 dayofffor a total of 20 days.
2) Reduced Efficiency: 20 straight days with no days off.
Working at Full Efficiency creates the following pattern:
2 days on, 1 day OFF, 2 days on, 1 day OFF, 2 days on, 1 day OFF... |
Which could be a possible way to prevent wildlife species from becoming endangered? | allenai/ai2_arc | [
"drinking less water",
"establishing more habitats",
"cutting down more forests",
"stopping underground coal mining"
] | B | |
A smack on a wooden board can be heard a mile away | allenai/openbookqa | [
"because sound travels through oxygen",
"because of how sound works",
"because vibration can move",
"because sound vibrates through atmosphere"
] | D | |
A dog can breathe | allenai/openbookqa | [
"under an ocean",
"out in space",
"in a church",
"in a sarcophagus"
] | C | |
The average temperature of a city in the first four days of a month was 36°. The average for the 2nd, 3rd, 4th and 5th day was 38°. If the temperature of the 1st and 5th day were in the ratio 4 : 5, then what is the temperature on the fifth day ? | deepmind/aqua_rat | [
"32°",
"35°",
"38°",
"40°"
] | D | Explanation:
The temperature for first 4 days = 4 * 36 = 144
The temperature for last 4 days = 4 * 38 = 152
The difference between the temperatures is (152 – 144) = 8
The ratio of temperature between first and fifth day is 4 : 5
The temperature on fifth day is 5*8 = 40
ANSWER D |
All are contents of the Femoral traingle except | openlifescienceai/medmcqa | [
"Femoral nerve",
"Femoral vein",
"Superficial inguinal lymphatics",
"Nerve to pectineus"
] | C | Femoral triangle : Lateral - Saorius Medial - Adductor longus Base - Inguinal ligament Contents - Femoral nerve, Femoral aery, Femoral vein,deep inguinal lymphatics, nerve to pectineus. Ref : Gray's Anatomy The Anatomical Basics of Clinical Practice 41 e pg 1362. |
Amy's sells kale at x dollar per pound for the first 20 pounds and .8x for every subsequent pound. Lucia's price is x per pound for the first 14 pounds and .9x for subsequent pounds. What is the minimum number of pounds over 20 for which Amy's becomes an equal or better deal? | deepmind/aqua_rat | [
"26",
"25",
"24",
"27"
] | A | For Amy's deal to be better, the cost has to be less or equal to Lucia's
Assuming 'n' is the number of pounds of kale, the equation is
20x + (n-20) (0.8x) <= 14x + (n-14)(0.9x)
Resolve it:
==> 20x + 0.8nx - 16x <= 14x + 0.9nx - 12.6x
==> 2.6x <=0.1nx
==> 26x < =nx
==> x (n-26) > = 0
as x cannot be 0,
==> n - 26 >=0
==>... |
Ba's hydrops fetalis is lethal because: | openlifescienceai/medmcqa | [
"Hb Ba's cannot bind oxygen",
"The excess a-globin form insoluble precipitates",
"Hb Ba's cannot release oxygen to fetal tissues",
"Microcytic red cells become trapped in the placental"
] | C | Hb Ba: Most severe form of Alpha thalassemia As Hb Ba's consists of 4-gamma chains - have very high oxygen affinity Thus, it cannot release oxygen to fetal tissues. |
In protein engineering, which technique involves the use of a library of protein variants to identify those with desirable traits, followed by iterative cycles of mutation and selection to optimize protein function? | mvujas/stem_mcqa_questions | [
"Directed Evolution",
"Rational Design",
"Site-Directed Mutagenesis",
"X-ray Crystallography"
] | A | Directed evolution is a method used in protein engineering that mimics the process of natural selection to evolve proteins or nucleic acids towards a user-defined goal. This technique involves creating a diverse library of protein variants through methods such as error-prone PCR, DNA shuffling, or random mutagenesis. T... |
An inclined plane is a good example of what kind of machine? | allenai/sciq | [
"strong",
"weak",
"complex",
"simple"
] | D | An inclined plane is also a simple machine. The resistance is the weight of the box resting on the inclined plane. In order to lift this box straight up, the effort force would need to be equal to its weight. However, assuming no friction, less effort (a smaller effort force) is required to slide the box up the incline... |
The energy a chemical reaction needs to get started is called what kind of energy? | allenai/sciq | [
"function",
"activation",
"fusion",
"conduction"
] | B | All chemical reactions, even exothermic reactions, need a certain amount of energy to get started. This energy is called activation energy . For example, activation energy is needed to start a car. Turning the key causes a spark that activates the burning of gasoline in the engine. The combustion of gas won’t occur wit... |
Sitaram a 40-year old man, met with an accident and comes to emergency department with engorged neck veins, pallor, rapid pulse and chest pain Diagnosis is - | openlifescienceai/medmcqa | [
"Pulmonary Laceration",
"Cardiac tamponade",
"Hemothorax",
"Splenic rupture"
] | B | |
Which are the three most important temperature scales? | allenai/sciq | [
"temperatures , celsius , kelvin",
"fahrenheit, celsius, kelvin",
"thermoelectric , celsius , kelvin",
"Kelvin, celcius, richter"
] | B | Temperature Scales Thermometers are used to measure temperature according to well-defined scales of measurement, which use pre-defined reference points to help compare quantities. The three most common temperature scales are the Fahrenheit, Celsius, and Kelvin scales. A temperature scale can be created by identifying t... |
Deep inguinal ring is a deficiency in the: | openlifescienceai/medmcqa | [
"Internal oblique muscle",
"Transverses abdominis muscle",
"Internal spermatic fascia",
"Transversalis fascia"
] | D | D i.e. Transversalis fascia |
A person in the tundra without a clothing will | allenai/openbookqa | [
"fly",
"shiver",
"experience heatstroke",
"undress"
] | B | |
All of the following are features of moscheowitz triad in Pericardial effusion, except | openlifescienceai/medmcqa | [
"Widening of the cardiac sillhouette",
"Bunting of cardiophrenic angle on the right side",
"An increase in cardiac dullness in the second intercostal space",
"An abrupt transition of pulmonary resonance to cardiac dullness"
] | B | Answer- B. Bunting of cardiophrenic angle on the right sideWidening of the cardiac silhouette (widening of cardiac flatnest to percussion).Widening or increae in cardiac dullness in the second intercostal space; andAn abrupt transition of pulmonary resonance to cardiac dullness |
For what values of k will the pair of equations 3(3x + 4y) = 36 and kx + 12y = 30 does not have a unique solution? | deepmind/aqua_rat | [
"12",
"9",
"3",
"7.5"
] | B | we have 2 equations
1. 3(3x + 4y) = 36 --> 3x + 4y = 12 -- > 9x + 12y = 36
2. kx + 12y = 30
substract 1-2, we get (9-K)x = 6
i.e. x = 6/(9-k)
then, by looking at options, we get some value of x except for B. When we put k=9, x becomes 6/0 and hence answer is B |
Express a speed of 54 kmph in meters per second? | deepmind/aqua_rat | [
"10 mps",
"76 mps",
"15 mps",
"97 mps"
] | C | 54 * 5/18
= 15 mps
Answer:C |
A sky that is mostly this color will likely be precipitating: | allenai/openbookqa | [
"yellow",
"gold",
"blue",
"gray"
] | D | |
How many pieces of 0.35 meteres can be cut from a rod 12.5 meteres long | deepmind/aqua_rat | [
"30",
"40",
"35",
"60"
] | C | Explanation:
We need so simple divide 42.5/0.85,
=(1250/35) = 35
Option C |
Which of the following represents the velocity of a moving object? | allenai/ai2_arc | [
"40",
"40 m north",
"40 m/s",
"40 m/s north"
] | D | |
In glycolysis, glucose is split into two molecules of pyruvate. this results in a net gain of? | allenai/sciq | [
"six atp molecules",
"three atp molecules",
"four atp molecules",
"two atp molecules"
] | D | In glycolysis, glucose is split into two molecules of pyruvate. This results in a net gain of two ATP molecules. |
By selling an article at Rs.500, a profit of 25% is made. Find its cost price? | deepmind/aqua_rat | [
"400",
"267",
"287",
"480"
] | A | SP = 500
CP = (SP)*[100/(100+P)]
= 500 * [100/(100+25)]
= 500 * [100/125] = Rs.400
Answer: A |
What term is used to describe the total spread of values in a sample? | allenai/sciq | [
"variety",
"range",
"axis",
"scale"
] | B | Many samples have a lot of variation in measurements. Variation can be described with a statistic called the range. The range is the total spread of values in a sample. It is calculated by subtracting the smallest value from the largest value. |
Patchy hair loss with hyperhidrosis of skin points to the diagnosis of - | openlifescienceai/medmcqa | [
"Alopecia aereata",
"Trichotillomania",
"Hypehyroidism",
"Adenoma sebacium"
] | C | hypehyroidism Cutaneous manifestation:Fine velvety smooth skinWarm and moist skin due to increased sweating Localised/generalised hyperpigmentationPruritusFacial flush Palmar erythema, uicaria Pretibial myxoedema Thyroid acropachy. Hair changes:-fine thin hair, non scarring alopecia, alopecia areata. Ref Harrison20th e... |
Which force produces energy as heat? | allenai/ai2_arc | [
"pull",
"gravity",
"friction",
"magnetic"
] | C | |
1-3 beta-D-glucanassay for fungi is not used for? | openlifescienceai/medmcqa | [
"Aspergillus species",
"Candida species",
"Cryptococcus species",
"Pneumocystis jirovecii"
] | C | Ans. (c) Cryptococcus s(j. journal of ,\\,11crobiology 2013 Nov. 3478-3484 13-D-glucan is the component of fungal cell-wall of all fungus (except cryptococcus, zygomycetes and blastomyces dermatidis) which is detectable in case of invasive infection. Currently Fungitell assay is a FDA approved 13-DG assay which is posi... |
Suppose you have a list of integers which is already sorted in ascending order. You want to find whether a given integer x exists in the list. What is the best possible time complexity for this search operation? | mvujas/stem_mcqa_questions | [
"O(1)",
"O(n)",
"O(log n)",
"O(n log n)"
] | C | Since the list is already sorted, the most efficient way to determine whether a given integer x exists in the list is to use a binary search approach. Binary search involves repeatedly dividing the search interval in half. First, it computes the middle position of the list, compares the middle element with x, and based... |
A person is going to run around a circle and wants to use a stopwatch in order to _____ time | allenai/openbookqa | [
"require",
"enjoy",
"find",
"mark"
] | D | |
Most common cause of Hyperparathyroidism is? | openlifescienceai/medmcqa | [
"Parathyroid adenoma",
"Parathyroid hyperplasia",
"Thyroid carcinoma",
"Medullary carcinoma thyroid"
] | A | Primary hyperparathyroidism is caused by autonomous secretion of PTH, usually by a single parathyroid adenoma, which can vary in diameter from a few millimetres to several centimetres. It should be distinguished from secondary hyperparathyroidism, in which there is a physiological increase in PTH secretion to compensat... |
Burning fossil fuels releases what into the atmosphere? | allenai/sciq | [
"carbon dioxide",
"phosphorus dioxide",
"nitrogen dioxide",
"carbon monoxide"
] | A | Burning organic material, such as fossil fuels, releases carbon dioxide. |
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