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math_qa
mathqa_03_04324
a shop owner sells 40 mtr of cloth and gains sp of 10 mtrs . find the gain % ?
[ "33.33 %", "40 %", "50 %", "66.67 %" ]
A
"here , selling price of 10 m cloth is obtained as profit . profit of 10 m cloth = ( s . p . of 40 m cloth ) – ( c . p . of 40 m cloth ) selling price of 30 m cloth = selling price of 40 m of cloth let cost of each metre be rs . 100 . therefore , cost price of 30 m cloth = rs . 3000 and s . p . of 30 m cloth = rs . rs ...
sciq
sciq_01_06093
Diseases of the lungs, bronchial tubes, trachea, nose, and throat affect what organ system?
[ "digestive", "respiratory", "heart", "skin" ]
B
Respiratory diseases are diseases of the lungs, bronchial tubes, trachea, nose, and throat ( Figure below ). These diseases can range from a mild cold to a severe case of pneumonia. Respiratory diseases are common. Many are easily treated, while others may cause severe illness or death. Some respiratory diseases are ca...
openbookqa
obqa_02_04463
When writing with an instrument one sharpens, the leftovers when pressed to paper is
[ "a squid", "glowing", "a mineral", "bright white" ]
C
pencil lead contains mineral graphite
math_qa
mathqa_03_01721
if the area of a circle decreases by 42 % , then the radius of a circle decreases by
[ "20 %", "18 %", "24 %", "64 %" ]
C
"if area of a circle decreased by x % then the radius of a circle decreases by ( 100 − 10 √ 100 − x ) % = ( 100 − 10 √ 100 − 42 ) % = ( 100 − 10 √ 58 ) % = 100 - 76 = 24 % answer c"
math_qa
mathqa_03_03785
at 15 : 00 there were 20 students in the computer lab . at 15 : 03 and every three minutes after that , 3 students entered the lab . if at 15 : 10 and every ten minutes after that 7 students left the lab , how many students were in the computer lab at 15 : 44 ?
[ "7", "14", "25", "27" ]
C
"initial no of students + 3 * ( 1 + no of possible 3 minute intervals between 15 : 03 and 15 : 44 ) - 8 * ( 1 + no of possible 10 minute intervals between 15 : 10 and 15 : 44 ) 20 + 3 * 14 - 8 * 4 = 25 c"
openbookqa
obqa_02_00748
What do herbivores eat
[ "stick bugs", "radishes", "leaf beetles", "sea cucumbers" ]
B
herbivores only eat plants
sciq
sciq_01_00443
What is the name of the second most electronegative element?
[ "oxygen", "Hydrogen", "nitrogen", "carbon" ]
A
Oxygen has an oxidation state of -2 in most of its compounds. Oxygen is the second most electronegative element, so it also tends to be assigned all shared electrons. Exceptions include O 2 (oxidation state = 0), peroxides, in which two oxygen atoms are connected by a single bond (oxidation state usually = -1), and any...
openbookqa
obqa_02_03782
A good mixture would be
[ "water and olive oil", "coffee and almond creamer", "salt and fresh tacos", "sugar and frozen milk" ]
B
An example of a mixture is clay mixed together
math_qa
mathqa_03_03634
in a certain math department , students are required to enroll in either calculus or trigonometry , each of which is offered in beginner and advanced courses . the number of students enrolled in trigonometry is 50 % greater than the number of students enrolled in calculus , and 70 % of calculus students are enrolled in...
[ "40 %", "44 %", "48 %", "52 %" ]
D
"let x be the number of students in calculus . then the number of students in trigonometry is 1.5 x the number of students on beginner calculus is 0.7 x the number of students in beginner trigonometry is 4 / 5 * ( 2.5 x ) - 0.7 x = 1.3 x the percentage in beginner trigonometry is 1.3 x / 2.5 x = 52 % the answer is d ."
ARC-Easy
arc_04_00457
Early scientists most likely saw a discharge of electricity for the first time when observing a
[ "waterfall", "rainbow", "lightning storm", "volcano erupting" ]
C
null
medmcqa
medmcqa_05_03472
Which of the following describes a Cock's peculiar tumour?
[ "An infected sebaceous cyst", "A malignant tumour of the scalp", "A metastatic lesion of the scalp", "An indicator of underlying osteomyelitis" ]
A
Cocks peculiar tumour is a complication of sebaceous cyst. It occurs when the surface of the sebaceous cyst gets ulcerated leading to the formation of a painful, fungating mass with discharge. It often resembles epithelioma. Sebaceous cyst is a retention cyst which result from a blockage of the duct of the sebaceous gl...
medmcqa
medmcqa_05_04020
Operant conditioning in which pain stimulus are given to a child for decreasing a ceain undesired behavior can be classified as:
[ "Positive reinforcement", "Negative reinforcement", "Punishment", "Negotiation" ]
C
Punishment is decrease in frequency of a behavior due to unpleasant consequences. Positive reinforcement - Frequency of behavior increases because it leads to positive consequences. Negative reinforcement- Frequency of behavior increases as it is followed by negative consequence.eg cleaning room to avoid scolding. All ...
medmcqa
medmcqa_05_04029
A male patient presents with headache, profuse sweating and palpitations with a blood prssure of 180/120 mmHg. The drug of choice would be -
[ "Nifedipine", "Labetalol", "Prazocin", "Phenoxy benzamine" ]
D
Answer- D. Phenoxy benzamineSymptoms of the patient suggests pheochromocytoma .The drug of choice for pheochromocytomas is phenoxybenzamine
sciq
sciq_01_03630
By applying salt to an icy road, the melting point of the ice is what?
[ "compounded", "concentrated", "decreased", "increased" ]
C
Colligative properties have practical applications, such as the salting of roads in cold-weather climates. By applying salt to an icy road, the melting point of the ice is decreased, and the ice will melt more quickly, making driving safer. Sodium chloride (NaCl) and either calcium chloride (CaCl 2 ) or magnesium chlor...
medmcqa
medmcqa_05_00012
During orthodontic movement of maxillary central Incisor, centre of rotation is present at apex. It shows:
[ "Controlled tipping", "Uncontrolled tipping", "Translation", "Intrusion" ]
A
Different Types of Orthodontic Tooth Movements TIPPING:- Simplest tooth movement. Controlled tipping – Centre of rotation at its apex. Uncontrolled tipping – Centre of rotation is very close or at centre of resistance.
medmcqa
medmcqa_05_01432
A 35 year old female P3 + 0 is observed to have CIN grade III on colposcopic biopsy. Which of the following would be the best initial management?
[ "Cryosurgery", "Conization", "LEEP", "Hysterectomy" ]
C
The preferred initial treatment however is Loop Electrosurgical Excision Procedure (LEEP). LEEP has become the procedure of choice for management of CIN II and CIN III'. This 35 year old women has apparently completed her family (P3 + 0) and hence hysterectomy may be considered as the treatment of choice. But William's...
sciq
sciq_01_09240
Weight is a measure of what force pulling down on an object?
[ "gravity", "light", "motion", "distortion" ]
A
Weight is a measure of the force of gravity pulling down on an object, whereas buoyant force pushes up on an object. Which force is greater determines whether an object sinks or floats. Look at the Figure below . On the left, the object’s weight is the same as the buoyant force acting on it, so the object floats. On th...
sciq
sciq_01_06033
A cartilaginous joint where the bones are joined by fibrocartilage is called a what?
[ "mitosis", "symphysis", "Testes", "vesicles" ]
B
Symphysis A cartilaginous joint where the bones are joined by fibrocartilage is called a symphysis (“growing together”). Fibrocartilage is very strong because it contains numerous bundles of thick collagen fibers, thus giving it a much greater ability to resist pulling and bending forces when compared with hyaline cart...
math_qa
mathqa_03_02458
if g and f are both odd prime numbers andg < f , then how many different positive integer factors does 2 gfhave ?
[ "3", "4", "6", "8" ]
D
g and f are both odd prime numbers - it means either g or f is not 2 and since prime numbers have only two factors - 1 and the number itself g and f each will have ( 1 + 1 ) = 2 factors hence 2 gf will have ( 1 + 1 ) ( 1 + 1 ) ( 1 + 1 ) = 8 factors d is the answer
openbookqa
obqa_02_04298
Where would a polar bear be happiest?
[ "wherever an igloo could be built", "in a pile of fake snow in the desert", "in the same country where kangaroos live in the wild", "in a heated house" ]
A
polar bears live in cold environments
math_qa
mathqa_03_01255
if 7 boys meet at a reunion and each boy shakes hands exactly once with each of the others , then what is the total number of handshakes
[ "21", "42", "43", "44" ]
A
"n ( n - 1 ) / 2 = 7 * 6 / 2 = 21 answer : a"
medmcqa
medmcqa_05_03529
What is the theme for World Health Day 2013?
[ "Diabetes", "Aging", "High blood pressure", "Antibiotic resistance" ]
C
World Health Day is celebrated on 7 April to mark the anniversary of the founding of WHO in 1948. Each year a theme is selected for World Health Day that highlights a priority area of public health concern in the world. The theme for 2013 is high blood pressure. Ref:
openbookqa
obqa_02_00608
What shows that crumpling is to change something from being smooth into a compacted shape by physical force?
[ "folding a piece of paper into a shape", "crushing a can in your hand", "squishing a smooth bug", "ripping up a piece of paper" ]
B
crumple means change shape from smooth into compacted by physical force
math_qa
mathqa_03_03191
if m and n are positive integer , and 1800 m = n ^ 3 , what is the least possible value of m ?
[ "2", "3", "15", "30" ]
C
1800 * m = n ^ 3 m = n ^ 3 / 1800 = n ^ 3 / ( 3 ^ 2 * 5 ^ 2 * 2 ^ 3 ) so n has to be 3 * 5 * 2 so that n ^ 3 is divisible by 1800 . so m = ( 2 * 3 * 5 ) ^ 3 / ( 3 ^ 2 * 5 ^ 2 * 2 ^ 3 ) m = 15 answer : c
math_qa
mathqa_03_04583
for integers x , y , and z , if ( 3 ^ x ) ( 4 ^ y ) ( 5 ^ z ) = 13107 , 200000 and x + y + z = 16 , what is the value of xy / z ?
[ "undefined", "0", "3", "5" ]
B
the number 13,107 , 200,000 is not divisible by 3 . ( we can verify this by adding the digits of the number to see that the sum is not a multiple of 3 . ) thus x = 0 and xy / z = 0 . the answer is b .
medmcqa
medmcqa_05_01234
Child with seizure plus hyponatremia treatment of choice ?
[ "0.9% NaCl", "i/2 0.45% NaC1", "Dextrose + NaC1", "3% NaC1" ]
D
Ans. is 'd ' i.e., 3% NaC1 Hyponatremia (Serum sodium < 130 meq/L). (Symptomatic when sodium < 120 meq/L). Fluid shift from ECF to neuronal cell. Results in cerebral edema which causes headache, drowsiness, seizure, coma. Treatment:? In low ECF volume & asymptomatic-give ORS/Normal saline. In complicated like seizure-g...
sciq
sciq_01_01392
The colloquial term "ribbon worm" refers to the mostly marine species of what phylum?
[ "nematoida", "lophophorata", "gnathifera", "nemertea" ]
D
Phylum Nemertea The Nemertea are colloquially known as ribbon worms. Most species of phylum Nemertea are marine, predominantly benthic or bottom dwellers, with an estimated 900 species known. However, nemertini have been recorded in freshwater and terrestrial habitats as well. Most nemerteans are carnivores, feeding on...
medmcqa
medmcqa_05_04667
Eosinophil are activated by
[ "IL 1", "IL5", "IL4", "IL6" ]
B
ref Robbins 8/e p200; IL 5 is required for the development and maturation of eosinophil Through binding to the interleukin-5 receptor, interleukin 5 stimulates B cell growth and increases immunoglobulin secretion - primarily IgA. It is also a key mediator in eosinophil activation.
sciq
sciq_01_09891
What are the specialized building blocks of your body?
[ "muscles", "cells", "proteins", "tissues" ]
B
Introduction Close your eyes and picture a brick wall. What is the basic building block of that wall? A single brick, of course. Like a brick wall, your body is composed of basic building blocks, and the building blocks of your body are cells. Your body has many kinds of cells, each specialized for a specific purpose. ...
sciq
sciq_01_11146
A solute generally has what effect on the boiling point of a solvent?
[ "raises", "lowers", "randomizes", "none" ]
A
In harmonic motion there is always a restorative force , which acts in the opposite direction of the velocity. The restorative force changes during oscillation and depends on the position of the object. In a pendulum it is the component of gravity along the path of motion. The force on the oscillating object is directl...
ARC-Easy
arc_04_00954
Scientists dig in a dry area at the bottom of a mountain range. Fossilized shells of freshwater mussels are found in the area. Which is a likely conclusion that scientists will draw based on this evidence?
[ "Rivers once flowed through the area.", "Volcanoes were once active in the area.", "The ocean shoreline once reached this area.", "Floods were a common occurrence in this area." ]
A
null
openbookqa
obqa_02_01023
if a person smashes an object, and it cracks, is that good or bad?
[ "it is always a positive thing to the object", "the object fails to be impacted", "all of these", "the item suffers a negative impact" ]
D
cracking something usually has a negative impact on that something
sciq
sciq_01_05061
What comes first in the life cycle of a plant?
[ "garden", "flower", "pair", "seed" ]
D
medmcqa
medmcqa_05_01930
A 7 year old girl from Bihar presented with three episodes of massive hematemesis and melena. There is no history of jaundice. On examination, she had a large spleen, non-palpable liver and mild ascites. Poal vein was not visualized on ultrasonography. Liver function tests were normal and endoscopy revealed esophageal ...
[ "Kala azar with poal hypeension", "Poal hypeension of unknown etiology", "Chronic liver disease with poal hypeension", "Poal hypeension due to extrahepatic obstruction" ]
D
Ans. is 'd' i.e., Poal hypeension due to extrahepatic obstruction Splenomegaly and esophageal varices point to the diagnosis of poal hypeension while absence of jaundice and deranged liver function test indicate an extrahepatic etiology. Differentiation between Extrahepatic and Hepatic / Post hepatic poal hypeension o ...
ARC-Easy
arc_04_00204
An astronomical unit (AU) refers to the distance between
[ "Earth and the Sun.", "the Moon and the Sun.", "Earth and the Moon.", "the Sun and the nearest star." ]
A
null
ARC-Easy
arc_04_01130
Which list contains only things that are part of our solar system?
[ "planets, moons, comets", "galaxies, quasars, asteroids", "black holes, novas, stars", "clusters, asteroids, meteors" ]
A
null
medmcqa
medmcqa_05_04888
The enzyme that is deficient in homocysteinuria:
[ "Tyrosinase", "Sphingomyelinase", "Cystathionine synthase", "Acid lipase" ]
C
c. Cystathionine synthase(Ref: Nelson's 20/e p 636-642; Ghai 8/e p 653-655)Basic Defect of E.Homocystinuria:Classic Homocystinuria is caused by Cystathionine b-Synthase deficiencyHoocystinuria can also be caused by deficiency of Methylene tetrahydrofolate Reductase & defects in Methylcobalamin formation.
ARC-Easy
arc_04_01186
The systems of the human body work together. Which system works with the skeletal system by pulling on the bones to create movement?
[ "digestive", "circulatory", "muscular", "nervous" ]
C
null
openbookqa
obqa_02_02635
After a storm, a glass vial with markings on it can tell
[ "how loud a baby is", "how wet an area got", "how sad a puppy is", "how bad a skunk smells" ]
B
as the amount of rainfall increases in an area , the amount of available water in that area will increase
ARC-Easy
arc_04_01707
What is the source of the organic matter needed for most fertile soils?
[ "moving water", "eroded sand", "decaying plants", "weathered bedrock" ]
C
null
sciq
sciq_01_01809
Name the most famous satellite of the earth?
[ "sputnik", "demos", "the moon", "skylab" ]
C
sciq
sciq_01_08792
Matter can exist either as a pure substance or as a combination of what?
[ "much substances", "different vapors", "Different Liquids", "different substances" ]
D
The properties of matter, both physical and chemical, depend on the substances that matter is made of. Matter can exist either as a pure substance or as a combination of different substances.
medmcqa
medmcqa_05_04598
treatment of tardive dyskinesia is
[ "dantrolene sodium", "clonazepam and vitamin E", "pacitine", "propanolol" ]
B
TARDIVE DYSKINESIA Involuntary Choreo athetoid movements Involving the face, trunks and limbs M.C SITE-=========== peri oral movements Exacerbated by stress Relieved by rest TREATMENT Benztropine Benzodiazepine Vitamin E Ondansean clozapine Ref. kaplon and Sadock, synopsis of psychiatry, 11 th edition, pg no. 925
ARC-Challenge
arc_04_02415
Which organ in a frog has a function similar to the function of lungs in a bird?
[ "kidney", "skin", "liver", "heart" ]
B
null
medmcqa
medmcqa_05_00654
To rule out rheumatoid arthrirtis, most important among the followings is?
[ "HLA DR8", "HLA DR4", "HLA DQ1", "HLA B27" ]
B
Ans. is 'b' i.e., HLA-DR4 o DR4 is strongly associated with RA(also with Type 1 DM Pemphigus vulgaris).Other optionso HLA-B27 is associated with seronegative spondyloartropathies (ankylosing spondylitis, Psoriatic arthritis, Reiter's syndrome, reactive arthritis) and acute anterior uveitis o HLA DR8 is associated with ...
math_qa
mathqa_03_00539
two trains are moving in opposite directions at 60 km / hr and 90 km / hr . their lengths are 1.50 km and 1.25 km respectively . the time taken by the slower train to cross the faster train in seconds is ?
[ "12", "77", "66", "99" ]
C
"relative speed = 60 + 90 = 150 km / hr . = 150 * 5 / 18 = 125 / 3 m / sec . distance covered = 1.50 + 1.25 = 2.75 km = 2750 m . required time = 2750 * 3 / 125 = 66 sec . answer : c"
math_qa
mathqa_03_04459
how is 1 % expressed as a decimal fraction ?
[ "0.1", "0.001", "0.01", "0.0001" ]
C
"1 / 100 = 0.01 answer : c"
medmcqa
medmcqa_05_04948
Maximum radiation exposure is by
[ "Radiography", "CT abdomen", "Radionuclide scan", "X-ray Abdomen" ]
B
Examination Effective total dose (mSv) Chest radiograph 0.06 Skull radiograph 0.2 Pelvis radiograph 0.65 Lumbar spine radiograph 1.3 Upper GI series (Barium) 2.45 Abdomen radiograph 0.55 Barium enema 2.8 to 4 IVP/IVU 1.6 Extremities 0.01 Enteroclysis 1.5 CT chest 8 CT abdomen 10 CT head 3.5 RNI 4.8
math_qa
mathqa_03_01832
a watch was sold at a loss of 10 % . if it was sold for rs . 140 more , there would have been a gain of 5 % . what is the cost price ?
[ "s . 933.33", "s . 1009", "s . 1007", "s . 1006" ]
A
"explanation : 90 % 105 % - - - - - - - - 15 % - - - - 140 100 % - - - - ? = > rs . 933.33 answer : a"
openbookqa
obqa_02_01780
What causes flooding?
[ "dryness", "droughts", "sunlight", "deluges" ]
D
heavy rains cause flooding
ARC-Challenge
arc_04_03052
When oil and water are mixed together, they form a
[ "gas.", "solid.", "compound.", "suspension." ]
D
null
sciq
sciq_01_07543
Plants, fungi, bacteria and archaea cells all have what feature that keeps them rigid that animal cells do not have?
[ "cell walls", "cell membrane", "cytoplasm", "plastids" ]
A
about how that occurs, in terms of membrane structure. If the influx of water continued unopposed, the membrane would eventually burst like an over-inflated balloon, killing the cell. One strategy to avoid this lethal outcome, adopted by a range of organisms, is to build a semi-rigid “cell wall” exterior to the plasma ...
sciq
sciq_01_08291
What tides occur during the new moon and full moon?
[ "bottom", "high", "spring", "autumn" ]
C
Spring tides occur during the new moon and full moon. The Sun and Moon are in a straight line either on the same side of Earth or on opposite sides. Their gravitational pull combines to cause very high and very low tides. Spring tides have the greatest tidal range.
sciq
sciq_01_08071
What type of current do generators in cars use?
[ "polar current", "direct current", "alternating current", "magnum current" ]
C
Generators may be set up to produce either alternating or direct current. Generators in cars and most power plants produce alternating current.
math_qa
mathqa_03_00287
at what price must an article costing rs . 51.50 be marked in order that after deducting 5 % from the list price . it may be sold at a profit of 25 % on the cost price ?
[ "60.5", "69.5", "67.5", "67.7" ]
D
"cp = 51.50 sp = 51.50 * ( 125 / 100 ) = 64.375 mp * ( 95 / 100 ) = 64.375 mp = 67.7 answer : d"
math_qa
mathqa_03_02270
what is the rate percent when the simple interest on rs . 800 amount to rs . 192 in 4 years ?
[ "5 %", "6 %", "3 %", "9 %" ]
B
"192 = ( 800 * 4 * r ) / 100 r = 6 % answer : b"
sciq
sciq_01_00827
What do farmers use greenhouses for?
[ "to predict the growing season", "to extend the growing season", "to allow the growing season", "to decrease the growing season" ]
B
Farmers use greenhouses to extend the growing season. A greenhouse traps heat. Days that are too cool for a growing plant can be made to be just right. Similar to a greenhouse, greenhouse gases in the atmosphere keep Earth warm.
openbookqa
obqa_02_04500
A willow can make its own
[ "rain", "energy", "sunshine", "snow" ]
B
a producer produces its own food
medmcqa
medmcqa_05_01661
Fusion inhibitor is-
[ "Enfuvirtide", "Ritonavir", "Efavirenz", "Didanosine" ]
A
Ans. is 'a' i.e., Enfuvirtide New drugs in HIV infection o Etravirine is recently approved NNRTI. This is the second generation NNRTI and is effective against HIV resistant to first generation NNRTI (Efavirenz, Delavirdine. Nevirapine). Fusion inhibitors (Entry inhibitors) o Enfuvirtide binds to Gp41 subunit of HIV env...
medmcqa
medmcqa_05_04463
Low-bih weight baby is the one with bih weight is less than -
[ "1000 grams", "1500 grams", "2000 grams", "2500 grams" ]
D
A low bih wright infant is any infant with a bih weight less than 2.5kg regardless of gestational age.REF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-494
math_qa
mathqa_03_01048
a fruit seller had some oranges . he sells 40 % oranges and still has 480 oranges . how many oranges he had originally ?
[ "800", "710", "720", "730" ]
A
"60 % of oranges = 480 100 % of oranges = ( 480 × 100 ) / 6 = 800 total oranges = 700 answer : a"
medmcqa
medmcqa_05_04483
Ca cervix IIIB is treatment of choice is-
[ "Radiotherapy", "Chemotherapy", "Chemoradiation", "Surgery" ]
C
Ans. is 'c' i.e., Chemoradiation
sciq
sciq_01_08800
The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by what?
[ "hard shell", "albumen", "amniotic membranes", "yolk" ]
C
29.4 Reptiles The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by amniotic membranes. The amniotes include reptiles, birds, and mammals. The early amniotes diverged into two main lines soon after the first amniotes arose. The initial split was into synapsids (mamma...
math_qa
mathqa_03_04016
joe ’ s average ( arithmetic mean ) test score across 4 equally weighted tests was 90 . he was allowed to drop his lowest score . after doing so , his average test score improved to 85 . what is the lowest test score that was dropped ?
[ "20", "25", "55", "75" ]
D
"the arithmetic mean of 4 equally weighted tests was 90 . so what we can assume is that we have 4 test scores , each 90 . he dropped his lowest score and the avg went to 95 . this means that the lowest score was not 90 and other three scores had given the lowest score 5 each to make it up to 90 too . when the lowest sc...
sciq
sciq_01_00386
Mitosis and meiosis are two types of what process, with dramatically different products?
[ "cell solution", "cell division", "cell diffusion", "cell transition" ]
B
Mitosis and meiosis are two types of cell division, with dramatically different products. Mitosis begins with a diploid somatic cell and ends with two genetically identical diploid cells. Meiosis begins with a diploid cell and produces four haploid genetically unique cells that form gametes.
math_qa
mathqa_03_01644
a tailor trims 7 feet from opposite edges of a square piece of cloth , and 5 feet from the other two edges . if 45 square feet of cloth remain , what was the length of a side of the original piece of cloth ?
[ "13", "15", "17", "19" ]
D
"let the original side of the square be x . ( x - 14 ) * ( x - 10 ) = 45 = 5 * 9 x = 19 the answer is d ."
sciq
sciq_01_00395
What term is used to describe potential energy due to an object’s shape?
[ "flexible energy", "elastic potential energy", "kinetic energy", "stimulated potential energy" ]
B
Irrigation is the single biggest use of water. Overhead irrigation wastes a lot of water. Drip irrigation ( Figure below ) wastes a lot less. Water pipes run over the surface of the ground. Tiny holes in the pipes are placed close to each plant. Water slowly drips out of the holes and soaks into the soil around the pla...
medmcqa
medmcqa_05_03741
Vasospasm is the cause of -
[ "Stable angina", "Unstable angina", "Variant angina", "Classical angina" ]
C
Ans. is 'c' i.e., Variant anginaAngina pectoris o Angina pectoris is a symptom complex of IHD characterized by paroxysmal and usually recurrent attacks of substernal or precordial chest discomfo caused by transient myocardial ischemia.o There are three patterns of anginaClassical stable anginaUnstable anginaPrinzmetal ...
medmcqa
medmcqa_05_00315
The contraceptive method of choice (temporary) for 37 years old well educated woman:
[ "Mala-N", "Mala-D", "IUD", "Diaphragm" ]
D
Diaphragm
sciq
sciq_01_01964
Is the most basic what is the most basic of the sciences, concerning itself with energy, matter, space and time, and their interactions?
[ "biology", "physics", "genetics", "experiments" ]
B
Section Summary 1.1 Physics: An Introduction • Science seeks to discover and describe the underlying order and simplicity in nature. • Physics is the most basic of the sciences, concerning itself with energy, matter, space and time, and their interactions. • Scientific laws and theories express the general truths of na...
openbookqa
obqa_02_01388
A light bulb will be lit up if it is all aside from
[ "turned on", "on a shelf", "connected to electricity", "screwed in" ]
B
a light bulb requires electrical energy to produce light
medmcqa
medmcqa_05_00124
The most posterior structure seen in the root of the lung is?
[ "Bronchus", "Superior pulmonary vein", "Inferior pulmonary vein", "Pulmonary artery" ]
A
Ans-AMnemonic is Atal Bihari Vajpayee (ABV)The arrangement of pulmonary structures at the hila of the lungs - ABV:From (A)above to below: (A)artery-(B)ronchus-(v)vein.The pulmonary artery is uppermost whereas, pulmonary vein is inferior most.This applies well to left lung...for right lung one additional bronchus goes a...
openbookqa
obqa_02_04671
Amoebas have zero options and must preform
[ "zero duties", "most duties", "all responsibilities", "some duties" ]
C
if a cell can not specialize then that cell must perform all life functions
ARC-Easy
arc_04_00882
Which of these is a negative effect associated with some types of new technology?
[ "increased worker productivity", "faster diagnosis of medical problems", "less time required to find information", "decreased physical activity" ]
D
null
math_qa
mathqa_03_03820
there are 361 doctors and nurses in a hospital . if the ratio of the doctors to the nurses is 8 : 11 , then how many nurses are there in the hospital ?
[ "152", "209", "57", "171" ]
A
"given , the ratio of the doctors to the nurses is 8 : 11 number of nurses = 11 / 19 x 361 = 209 answer : a"
medmcqa
medmcqa_05_04557
A 24 year old unmarried woman has multiple nodular, cystic, pustular and comedonicus lesions on face, upper back and shoulders for 2 years. The drug of choice for her treatment:
[ "Erythromycin", "Isotretinoin", "Doxycycline", "Azithromycin" ]
B
Acne is which is multinodular in nature is treated using dofferent types of drugs one of them is isoretinoin which belongs to retinoids family.all others are antibiotics which are given as secondary tretment. Ref: kd tRipathi 8th ed.
openbookqa
obqa_02_03438
If a park becomes more and more arid, the animals there will probably
[ "start increasing in population", "have more food available", "have less to drink", "start becoming more friendly" ]
C
as dryness increases in an environment , the available water in that environment will decrease
medmcqa
medmcqa_05_02617
Transmination of Aspaate forms ?
[ "Pyruvate", "Acetly-CoA", "Oxaloacetate", "Alanine" ]
C
Ans. is 'c' i.e., Oxaloacetate Transamination Transamination involves the reversible transfer of a-amino group of a-amino acid to an a-keto acid(' to form a new amino acid and a new keto acid. The enzyme catalyze the reaction is called aminotransferase (transaminase). Most transaminases use a-ketoglutarate (a-keto acid...
sciq
sciq_01_08311
What is the process when animals maintain an internal temperature?
[ "thermoregulation", "osmoregulation", "bioaccumulation", "homeostasis" ]
A
medmcqa
medmcqa_05_01981
"Poers of Infection" are -
[ "Anopheles", "Housefly", "Aedes", "Cockroaches" ]
B
Houseflies are commonest and familiar insects which live close to man. House flies are exceptionally efficient mechanical spreaders of disease. They transpo microorganisms on their feet and hairy leg. Pathogenic organisms, ova, and cysts have been recovered from bodies of the housefly. House flies are called 'poers of ...
sciq
sciq_01_01056
Only finished mrnas are exported from the nucleus to what?
[ "amino acids", "cerebellum", "electron", "cytoplasm" ]
D
9.3 Transcription In prokaryotes, mRNA synthesis is initiated at a promoter sequence on the DNA template. Elongation synthesizes new mRNA. Termination liberates the mRNA and occurs by mechanisms that stall the RNA polymerase and cause it to fall off the DNA template. Newly transcribed eukaryotic mRNAs are modified with...
sciq
sciq_01_08646
Contributing to the blood-brain barrier is one of the jobs of glial cells, which support neurons in what system?
[ "digestive system", "circulatory system", "central nervous system", "peripheral nervous system" ]
C
Glial Cells of the CNS One cell providing support to neurons of the CNS is the astrocyte, so named because it appears to be star-shaped under the microscope (astro- = “star”). Astrocytes have many processes extending from their main cell body (not axons or dendrites like neurons, just cell extensions). Those processes ...
sciq
sciq_01_00859
Sodium and chloride ions have equal but what charges?
[ "positive", "path", "simple", "opposite" ]
D
Sodium and chloride ions have equal but opposite charges. Opposite electric charges attract each other, so sodium and chloride ions cling together in a strong ionic bond. You can see this in row 2 of the Figure above . (Brackets separate the ions in the diagram to show that the ions in the compound do not actually shar...
math_qa
mathqa_03_01332
two persons start running simultaneously around a circular track of length 250 m from the same point at speeds of 20 kmph and 40 kmph . when will they meet for the first time any where on the track if they are moving in the opposite direction ?
[ "144", "15", "18", "32" ]
B
time taken to meet the first time = length of track / relative speed = 250 / ( 20 + 40 ) ( 5 / 18 ) = 250 / 60 * ( 18 / 5 ) = 15 sec . answer : b
math_qa
mathqa_03_04878
24 oz of juice p and 25 oz of juice v are mixed to make smothies a and y . the ratio of p to v in smothie a is 4 is to 1 and that in y is 1 is to 5 . how many ounces of juice p are contained in the smothie a ?
[ "5", "10", "15", "20" ]
D
the ratio of p to v in smothie x is 4 is to 1 and that in y is 1 is to 5 . p 1 + p 2 = 24 v 1 + v 2 = 25 p 1 = 4 v 1 p 2 = v 2 / 5 4 v 1 + v 2 / 5 = 24 v 1 + v 2 = 25 4 v 2 - v 2 / 5 = 76 19 v 2 / 5 = 76 = > v 2 = 20 = > v 1 = 5 = > p 1 = 20 answer - d
openbookqa
obqa_02_02310
Which is a carnivore?
[ "a cow", "a caterpillar", "a vegan", "a shark" ]
D
carnivores only eat animals
sciq
sciq_01_01238
What forms when water in the atmosphere condenses on dust particles suspended in the air?
[ "clouds", "hail", "wind", "snow" ]
A
ARC-Easy
arc_04_00120
Which human trait is most likely inherited from a parent?
[ "learning to ride a bike", "holding a spoon", "reading a book", "height" ]
D
null
math_qa
mathqa_03_01700
in a certain company 20 % of the men and 40 % of the women attended the annual company picnic . if 35 % of all the employees are men . what % of all the employee went to the picnic ?
[ "33 %", "34 %", "35 %", "36 %" ]
A
total men in company 35 % means total women in company 65 % ( assume total people in company 100 % ) no of men emplyess attended picnic = 35 x ( 20 / 100 ) = 7 no of women empolyees attened picnin = 65 x ( 40 / 100 ) = 26 total percentage of empolyess attened the picnic = 7 + 26 = 33 % answer : a
sciq
sciq_01_05678
The primary site of carbohydrate digestion is in the?
[ "mouth", "stomach", "small intestine", "large intestine" ]
C
The primary site of carbohydrate digestion is the small intestine. The secretion of αamylase in the small intestine converts any remaining starch molecules, as well as the dextrins, to maltose. Maltose is then cleaved into two glucose molecules by maltase. Disaccharides such as sucrose and lactose are not digested unti...
sciq
sciq_01_07799
Where is the fruiting body normally produced in relation to the food source?
[ "at the surface", "at the root", "underneath the surface", "in the soil" ]
A
The fruiting bodies are usually produced at the surface of the food source, rather than hidden within it. This allows the reproductive spores to be easily shed and carried away by the wind, water, or animals. The fruiting bodies are usually the only indication that a fungus is present. Like icebergs, the fruiting bodie...
medmcqa
medmcqa_05_00043
Defense mechanism in phobia is:
[ "Sublimation", "Displacement", "Substitution", "Projection" ]
B
Displacement
math_qa
mathqa_03_00019
there are 3 red chips and 2 blue ones . when arranged in a row , they form a certain color pattern , for example rbrrb . how many color patterns ?
[ "10", "12", "24", "60" ]
A
"there are 3 red chips and 2 blue ones . when arranged in a row , they form a certain color pattern , for example rbrrb . how many color patterns ? 10 12 24 60 100 soln : total number of patterns is 5 ! since 3 red chips are identical and 2 blue ones are identical thus we have = 5 ! / ( 2 ! * 3 ! ) = 10 such different ...
sciq
sciq_01_01896
The change in the characteristics of living things over time is known as _________
[ "evolution", "variation", "spontaneous mutation", "generation" ]
A
Evolution is a change in the characteristics of living things over time. Evolution occurs by a process called natural selection. In natural selection, some living things produce more offspring than others, so they pass more genes to the next generation than others do. Over many generations, this can lead to major chang...
sciq
sciq_01_01102
Preserved remains or traces of organisms that lived in the past are known as what?
[ "deposits", "archives", "fossils", "skulls" ]
C
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure below . Preserved traces can include footprints, burrows, or even wastes. Examples of trace fossils are also show...
medmcqa
medmcqa_05_02905
Microscope was invented by ?
[ "Ronald ross", "Robert koch", "Antonie van Leeuwenhoek", "Louis pasteur" ]
C
Microscope was invented by Antonie Van Leeuwenhoek.
sciq
sciq_01_06192
What can happen spontaneously or as a result of mutagens in the environment?
[ "combustion", "traits", "lesions", "mutations" ]
D
Many mutations are not caused by errors in replication. Mutations can happen spontaneously, and they can be caused by mutagens in the environment. Some chemicals, such as those found in tobacco smoke, can be mutagens. Sometimes mutagens can also cause cancer. Tobacco smoke, for example, is often linked to lung cancer.
medmcqa
medmcqa_05_00337
A 10-year-old school girl has recurrent episodes of boils on the scalp. The boils subside with antibiotic therapy but recur after some time. The most likely cause of the recurrences is -
[ "Primary immunodeficiency syndrome", "Juvenile diabetes mellitus", "Pediculosis capitis", "HPV infection" ]
C
Signs & symptoms. A ticklish feeling on the scalp or neck. An itchy scalp (the result of an allergic reaction to the bug's saliva). Small red bumps on the scalp, neck and shoulders. The presence of lice on the scalp. The presence of nits (lice eggs) on shafts of hair. Difficulty sleeping, which can lead to irritability...
medmcqa
medmcqa_05_03043
In the grading of trachoma,trachomatous inflammations follicular is defined as the presence of
[ "5 or more follicles in the lower tarsal conjunctiva", "Three or more molecules in the lower tarsal conjunctiva", "Five or more follicles in upper tarsal conjunctiva", "Three or more follicles in upper tarsal conjunctiva" ]
C
The pneumonic is FIST-O Refer: Khurana 6th edition page number 65
sciq
sciq_01_03199
Acids are molecular compounds that dissolve in water to produce hydronium ions and what else?
[ "a proton", "a neutron", "an alkali", "an anion" ]
D
Acids are molecular compounds that dissolve in water to produce hydronium ions and an anion.