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7.76k
openbookqa
obqa_02_04950
Heavy atmospheric movement is desirable if you have
[ "paper plates", "perfect hair", "a wind turbine", "a badminton match" ]
C
windy means high wind speeds
sciq
sciq_01_03340
The reactions between alkali metals and water are particularly vigorous and include the rapid production of large quantities of what gas?
[ "hydrogen", "carbon", "oxygen", "helium" ]
A
All alkali metals are very soft and can be cut easily with a knife. Due to their high reactivity, they must be stored under oil to prevent them from reacting with oxygen or water vapor in the air. The reactions between alkali metals and water are particularly vigorous and include the rapid production of large quantitie...
openbookqa
obqa_02_04483
The people who live after you will appreciate it if you take your glass bottles and
[ "throw them", "break them", "reuse them", "shatter them" ]
C
recycling resources has a positive impact on the environment
medmcqa
medmcqa_05_01557
Which organism cannot be cultured ?
[ "Klebsiella rhinoscleromatis", "Klebsiella ozaenae", "Klebsiella granulomatis", "Pneumocystis jiroveci" ]
D
Ans. is 'd' i.e., Pneumocytstis jiroveci "The life cycle of pneumocystis probably involves sexual and asexual reproduction, although definitive proof awaits the development of a reliable culture system". - Harrison "Rhinosporidium seeberi has not been cultivated in media". - Ananthnarayan.
sciq
sciq_01_04899
Adaptations that go along with the active, carnivorous lifestyle of sharks are known as?
[ "similar senses", "acute parameters", "Relative traits", "acute senses" ]
D
ARC-Challenge
arc_04_02453
What enabled Galileo in the 17th century to see the moons of Jupiter?
[ "Jupiter came close to Earth during his lifetime.", "He realized that all of the planets go around the Sun.", "He invented advanced tools for looking at the sky.", "Earlier scientists failed to take an interest in the sky." ]
C
null
openbookqa
obqa_02_02312
Which is the most dangerous to trees?
[ "sunlight", "javascript", "oxygen", "industrial saws" ]
D
timber companies cut down trees
sciq
sciq_01_09420
What is the weighted average of the masses of all isotopes of an element called?
[ "weight mass", "light mass", "cell mass", "atomic mass" ]
D
The atomic mass is the weighted average of the masses of all isotopes of an element.
sciq
sciq_01_10468
The mechanical advantage of a machine is related to how it changes what?
[ "example", "pressure", "nature", "force" ]
D
The mechanical advantage of a machine is related to how it changes force. Explain this relationship.
math_qa
mathqa_03_02277
a small table has a length of 12 inches and a breadth of b inches . cubes are placed on the surface of the table so as to cover the entire surface . the maximum side of such cubes is found to be 4 inches . also , a few such tables are arranged to form a square . the minimum length of side possible for such a square is ...
[ "8", "16", "24", "32" ]
A
"from the info that the maximum sides of the cubes is 4 , we know that the gcf of 12 ( = 2 ^ 2 * 3 ) andbis 4 ( = 2 ^ 2 ) , sob = 2 ^ x , where x > = 2 . from the second premise , we know that the lcm of 12 ( 2 ^ 2 * 3 ) andbis 24 ( 2 ^ 3 * 3 ) , sob = 2 ^ 3 or 2 ^ 3 * 3 ( 8 or 24 ) . combining 2 premises shows the ans...
medmcqa
medmcqa_05_03049
Who coined the term Munchausen's syndrome?
[ "Jean-Marie Charcot", "Richard Asher", "Baron von Munchausen", "Emil Kraepelin" ]
B
Ans. B. Richard AsherMunchausen's syndrome is a colorful term coined by Richard Asher in 1951 in his famous article in The Lancet. Patients with Munchausen's syndrome constantly seek medical care and hospitalization and often assume grandiose, false identities, sometimes claiming to be royalty, relatives of celebrities...
math_qa
mathqa_03_03918
in an examination , 34 % of total students failed in hindi , 44 % failed in english and 22 % in both . the percentage of these who passed in both the subjects is :
[ "23", "37", "28", "44" ]
D
explanation : formula n ( a â ˆ ª b ) = n ( a ) + n ( b ) â ˆ ’ n ( a â ˆ © b ) fail in hindi or english = 34 + 44 â € “ 22 = 56 therefore students who passed = 100 â € “ 56 = 44 . answer : d
sciq
sciq_01_10192
What are membrane-bound organelles that can have secretory, excretory, and storage functions?
[ "alleles", "vacuoles", "prokaryotes", "nuclei" ]
B
Vacuoles are membrane-bound organelles that can have secretory, excretory, and storage functions. Many organisms will use vacuoles as storage areas and some plant cells have very large vacuoles. Vesicles are much smaller than vacuoles and function in transporting materials both within and to the outside of the cell.
openbookqa
obqa_02_01249
What is an example of endangered?
[ "deer are hunted to keep population levels in check", "birds fly south for the winter", "deer relocate in order to find better food", "hawks hunt all of the mice from a field" ]
D
endangered means low in population
sciq
sciq_01_03147
The difference between aldehydes and ketones is the placement of what group within the molecule?
[ "nucleus", "ammonia", "carbonyl", "benadryl" ]
C
The difference between aldehydes and ketones is the placement of the carbonyl group within the molecule. An aldehyde is an organic compound in which the carbonyl group is attached to a carbon atom at the end of a carbon chain. A ketone is an organic compound in which the carbonyl group is attached to a carbon atom with...
sciq
sciq_01_00965
What property is the result of force acting on a given area?
[ "resistance", "pressure", "vaccuum", "pull" ]
B
Pressure is the result of force acting on a given area. It can be represented by the equation:.
sciq
sciq_01_08751
What are organisms that depend on other living things for food?
[ "customers", "buyers", "consumers", "products" ]
C
Consumers are organisms that depend on other living things for food. They take in organic compounds by eating or absorbing other living things. Consumers include all animals and fungi. They also include some bacteria and protists.
medmcqa
medmcqa_05_03679
Waterhouse-Friderichsen syndrome is seen in:
[ "Pneumococci", "N.meningitidis", "Pseudomonas", "Yersinia" ]
B
Fulminant meningococcemia (purpura fulminans or Waterhouse – Friderichsen syndrome) is the most rapidly lethal form of septic shock experienced by humans.  It differs from most other form of septic shock by the prominence of hemorrhagic skin lesions (petechiae, purpura) and the consistent development of DIC.
sciq
sciq_01_04721
Glucocorticoids and mineralocorticoids are the two main types of what in humans?
[ "carotenoids", "hormones", "metabolites", "corticosteroids" ]
D
medmcqa
medmcqa_05_03852
In pigmented basal cell carcinoma, treatment of choice is -
[ "Chemotherapy", "Radiotherapy", "Cryosurgery", "Excision" ]
D
Ans. is 'd' i.e., Excision
sciq
sciq_01_02468
What do eukaryotic cells have that compartmentalize their functions?
[ "cell walls", "cytoplasm", "vacuoles", "internal membranes" ]
D
6.2 Eukaryotic cells have internal membranes that compartmentalize their functions.
math_qa
mathqa_03_03686
what will be the reminder when ( 67 ^ 67 + 67 ) is divided by 68 ?
[ "1", "63", "66", "67" ]
C
"( x ^ n + 1 ) will be divisible by ( x + 1 ) only when n is odd ; ( 67 ^ 67 + 1 ) will be divisible by ( 67 + 1 ) ; ( 67 ^ 67 + 1 ) + 66 when divided by 68 will give 66 as remainder . correct option : c"
sciq
sciq_01_07589
What is the type of mining called when materials are removed along a strip?
[ "pit mining", "edge mining", "surface mining", "strip mining" ]
D
Other methods of surface mining include strip mining, placer mining, and dredging. Strip mining is like open pit mining but with material removed along a strip. A quarry is a type of open-pit mine that produces rocks and minerals that are used to make buildings and roads.
medmcqa
medmcqa_05_04652
A 19-year-old woman complains of swelling of her eyelids, abdomen, and ankles. At bedtime, there are depressions in her legs at the location of the elastic in her socks. A chest X-ray shows bilateral pleural effusions. Urine protein electrophoresis demonstrates 4+ proteinuria. A percutaneous needle biopsy of the kidney...
[ "Active hyperemia", "Chronic passive congestion", "Decreased intravascular oncotic pressure", "Hyperalbuminemia" ]
C
The pressure differential between the intravascular and the interstitial compartments is largely determined by the concentration of plasma proteins, especially albumin. Any condition that lowers plasma albumin levels, whether from albuminuria in nephrotic syndrome or reduced albumin synthesis in chronic liver disease, ...
sciq
sciq_01_09020
What does the kyoto protocol focus on controlling?
[ "carbonate gas emissions", "greenhouse gas emissions", "Helium emissions", "Ozone emissions" ]
B
The Kyoto Protocol is another worldwide agreement on air pollution. It was passed in 1997. The Protocol focuses on controlling greenhouse gas emissions. Its aim is to control global warming.
sciq
sciq_01_06385
What property of food is determined by burning the food and measuring the heat released?
[ "additives", "nutrients", "acidity", "calories" ]
D
Food calories are determined by burning the food and measuring the heat released.
math_qa
mathqa_03_00768
payal finished 2 / 3 of a book . she calculated that she finished 20 more pages than she has yet to read . how long is her book ?
[ "a", "b", "c", "d" ]
A
let x be the total number of pages in the book , then she finished 2 / 3 * x pages . then she has x − 2 / 3 * x = 1 / 3 * x pages left . 2 / 3 * x − 1 / 3 * x = 20 1 / 3 * x = 20 x = 60 so the book is 270 pages long . answer is a .
sciq
sciq_01_01919
What type of animals are known for being playful and frisky?
[ "cows", "giant tortoises", "sea otters", "snakes" ]
C
Sea otters are known for being playful and frisky. They are serious eaters, however! A major part of a sea otter's diet are echinoderms, such as sea urchins. They manage to eat the soft part of the sea urchins while avoiding the huge sea urchin spines.
sciq
sciq_01_09638
Where are bile acids, needed to emulsify lipids, stored in the body?
[ "gallbladder", "liver", "womb", "cerebellum" ]
A
Triglycerides in the diet are digested in the small intestine. Since lipids are not water-soluble, they are emulsified with the help of bile acids, which are produced by the liver and stored in the gall bladder. Bile acids are cholesterol-derived steroids that also contain a water-soluble component. The nonpolar region...
sciq
sciq_01_04328
Internal resistance, or (electrical) resistance in general, involves the resistance of the flow of what?
[ "current", "water", "protons", "force" ]
A
Internal Resistance As noted before, a 12-V truck battery is physically larger, contains more charge and energy, and can deliver a larger current than a 12-V motorcycle battery. Both are lead-acid batteries with identical emf, but, because of its size, the truck battery has a smaller internal resistance r . Internal re...
sciq
sciq_01_02414
Water is formed from oxygen and what other element?
[ "helium", "lead", "hydrogen", "calcium" ]
C
When hydrogen gas is reacted with oxygen gas, water is formed as the product.
math_qa
mathqa_03_02416
in a sports club with 30 members , 17 play badminton and 21 play tennis and 2 do not play either . how many members play both badminton and tennis ?
[ "7", "8", "9", "10" ]
D
"let x play both badminton and tennis so 17 - x play only badminton and 19 - x play only tennis . 2 play none and there are total 30 students . hence , ( 17 - x ) + ( 21 - x ) + x + 2 = 30 40 - 2 x + x = 30 40 - x = 30 x = 10 so 10 members play both badminton and tennis . d"
medmcqa
medmcqa_05_01820
In trigger finger the level of tendon sheath constriction is found at the level of -
[ "Middle phalanx", "Proximal interphalangeal joint", "Proximal phalanx", "Metecarpophalangeal joint" ]
D
TRIGGER FINGER (DIGITAL TENOVAGINOSIS) A flexor tendon may become trapped by thickening at the entrance to its sheath; on forced extension it passes the constriction with a snap ('triggering'). Clinical features ,Any digit may be affected, but the thumb, ring and middle fingers most commonly; sometimes several fingers ...
medmcqa
medmcqa_05_02285
Which of the following is a live attenuated bacterial vaccine
[ "BCG vaccine", "OPV", "Hib Vaccine", "Peusis vaccine" ]
A
BCG for tuberculosis is a live atteunated bacterial vaccine OPV is against polio caused by polio virus. OPV is a live atteunated viral vaccine Hib vaccine is a glycoconjugate vaccine Peussis vaccine is a killed whole organism vaccine Ref : Park&;s Textbook of preventive and social medicine; 24th edition; Pg no.108
sciq
sciq_01_02994
Which of these is last if ordered in increasing size: galaxy, solar system, star cluster?
[ "star cluster", "galaxy", "solar system", "none of these" ]
B
Compared to Earth, the solar system is a big place. Compared to the solar system a star cluster is a big place. But galaxies are bigger—a lot bigger.
sciq
sciq_01_01231
What are the major sites of gibberellin production?
[ "flower and fruit", "young roots and leaves", "stem and roots", "soil and leaves" ]
B
sciq
sciq_01_04803
Oxygenated air, taken in during inhalation, diffuses across the surface of the lungs into the what?
[ "proteins", "liver", "brain", "bloodstream" ]
D
Types of Breathing Amphibians have evolved multiple ways of breathing. Young amphibians, like tadpoles, use gills to breathe, and they don’t leave the water. Some amphibians retain gills for life. As the tadpole grows, the gills disappear and lungs grow. These lungs are primitive and not as evolved as mammalian lungs. ...
sciq
sciq_01_01618
What kind of reproduction is vegetative reproduction?
[ "asexual", "meiosis", "sexual", "mitosis" ]
A
Vegetative reproduction is a type of asexual reproduction found in plants. This type of reproduction occurs when new individuals are formed without the production of seeds or spores. The formation of new plants out of rhizomes or stolons is an example of vegetative reproductive, such as in the strawberry plant. Other p...
ARC-Challenge
arc_04_03188
Which statement correctly describes a relationship between the distance from Earth and a characteristic of a star?
[ "As the distance from Earth to the star decreases, its size increases.", "As the distance from Earth to the star increases, its size decreases.", "As the distance from Earth to the star decreases, its apparent brightness increases.", "As the distance from Earth to the star increases, its apparent brightness i...
C
null
sciq
sciq_01_03128
Exemplified by a lit match bursting into flame or the process that forms fossil fuels, chemical reactions vary greatly in terms of what?
[ "density", "speed", "duration", "power" ]
B
Chemical reactions vary widely in the speeds with which they occur. Some reactions occur very quickly. If a lighted match is brought in contact with lighter fluid or another flammable liquid, it erupts into flame instantly and burns fast. Other reactions occur very slowly. A container of milk in the refrigerator will b...
openbookqa
obqa_02_03989
Which of these could be separated with a sifter
[ "a cup of coffee", "a bowl of melted ice cream", "a bottle of water", "a bowl of cereal" ]
D
a sifter is used for separating mixtures
math_qa
mathqa_03_04454
an auction house charges a commission of 16 % on the first $ 50,000 of the sale price of an item , plus 10 % on the amount of of the sale price in excess of $ 50,000 . what was the price of a painting for which the house charged a total commission of $ 24,000 ?
[ "$ 115,000", "$ 160,000", "$ 210,000", "$ 240,000" ]
C
"say the price of the house was $ x , then 0.16 * 50,000 + 0.1 * ( x - 50,000 ) = 24,000 - - > x = $ 210,000 ( 16 % of $ 50,000 plus 10 % of the amount in excess of $ 50,000 , which is x - 50,000 , should equal to total commission of $ 24,000 ) . answer : c ."
sciq
sciq_01_01324
What system in the human body makes white blood cells that protect the body from diseases?
[ "renal system", "reproductive system", "lymphatic system", "cardiovascular system" ]
C
The lymphatic system also plays an important role in the immune system. For example, the lymphatic system makes white blood cells that protect the body from diseases. Cells of the lymphatic system produce two types of white blood cells, T cells and B cells, that are involved in fighting specific pathogens. Lymph nodes,...
sciq
sciq_01_02055
There are five primary tastes in humans: sweet, sour, bitter, salty, and what?
[ "aroma", "umami", "tangy", "hot" ]
B
36.3 Taste and Smell There are five primary tastes in humans: sweet, sour, bitter, salty, and umami. Each taste has its own receptor type that responds only to that taste. Tastants enter the body and are dissolved in saliva. Taste cells are located within taste buds, which are found on three of the four types of papill...
sciq
sciq_01_06904
What is the tissue beneath a mollusks' shell called?
[ "mucous", "cartilage", "skin", "mantle" ]
D
Mollusks have ventral nerve cords. The tissue beneath the shell is called the mantle. The mantle cavity contains hemolymph. Figure 15.33 Which of the following statements about common features of chordates is true? a. The dorsal hollow nerve cord is part of the chordate central nervous system. In vertebrate fishes, the...
sciq
sciq_01_09153
What nest of cells protect the egg as it matures in the ovary?
[ "the tube", "the clump", "the epidermis", "the follicle" ]
D
As you can see from the figure, the egg rests in a nest of cells called a follicle . The follicle and egg grow larger and go through other changes. The follicle protects the egg as it matures in the ovary.
sciq
sciq_01_03319
Arteries, veins, and capillaries are the three main types of what?
[ "cell structures", "blood vessels", "blood shapes", "blood pathways" ]
B
sciq
sciq_01_05570
What is asexual reproduction in which an egg develops without being fertilized called?
[ "binary fission", "metamorphosis", "parthenogenesis", "budding" ]
C
sciq
sciq_01_00508
Emissions of what gas into the atmosphere from fossil fuel burning have been rising for the past several decades?
[ "sulphur", "oxygen", "neon", "carbon dioxide" ]
D
Carbon dioxide emissions into the atmosphere from fossil fuel burning have been rising for the past several decades.
ARC-Easy
arc_04_01005
Light sometimes behaves as waves and other times as particles. Which property of light is equally explainable by treating light as either particles or waves?
[ "interference of light", "reflection of light", "diffraction of light", "polarization of light" ]
B
null
math_qa
mathqa_03_03566
the length of rectangle is thrice its breadth and its perimeter is 96 m , find the area of the rectangle ?
[ "432", "288", "376", "397" ]
A
"2 ( 3 x + x ) = 96 l = 36 b = 12 lb = 36 * 12 = 432 answer : a"
sciq
sciq_01_08423
What type of maps detail detail the types and locations of rocks found in an area?
[ "gnomic maps", "geologic maps", "contour maps", "polar maps" ]
B
Geologic maps detail the types and locations of rocks found in an area.
sciq
sciq_01_10407
The burning of what type of fuels is a major source of sulfur oxides and nitrogen oxides?
[ "biofuels", "renewable", "synthetic", "fossil" ]
D
openbookqa
obqa_02_04395
The last celestial body in our solar system without an orbit is
[ "Saturn", "Jupiter", "a meteor", "Uranus" ]
C
pluto has not cleared its orbit
math_qa
mathqa_03_03465
how many multiples of 5 are there between 1 and 100 ( both are inclusive ) ?
[ "1.2", "20.8", "2.3", "6.7" ]
B
"the answer is ( 100 - 1 ) / 5 + 1 = 20.8 answer is b"
openbookqa
obqa_02_03272
Where might you see light reflect?
[ "rocks", "bottled liquid", "sand", "wood" ]
B
when light hits a reflective object , that light bounces off that object
medmcqa
medmcqa_05_04529
Middle cerebellar Penducle transmits..... fibres
[ "Ponto cerebellar pathway", "Tectospinal pathway", "Spino cerebellar pathway", "Middle cerebellar pathway" ]
A
A i.e. Pontocerebellar
openbookqa
obqa_02_02627
In the food chain process a cattail has the role of
[ "decomposer", "consumer", "producer", "trader" ]
C
In the food chain process a green plant has the role of producer
ARC-Easy
arc_04_01830
In 2004, Maryland recycled more than 35% of all of the waste the state produced. Which of these benefits does recycling provide to Maryland?
[ "fewer wild animals", "decreased farm crops", "less trash sent to landfills", "decreased use of electricity" ]
C
null
medmcqa
medmcqa_05_01415
Diacetylmonoxime are contraindicated in which poisoining ?
[ "Malathion", "Parathion", "Propxur", "TIK-20" ]
C
Oximes are used to restore neuromuscular transmission only in case of organophosphate poisoning. These act by reactivating AchE enzyme. 2 oximes : PAM (Pralidoxime) - It only acts in periphery and does not enter brain. DAM (Diacetylmonoxime) - Acts in periphery as well as in brain. Oximes are not useful in case of carb...
medmcqa
medmcqa_05_00923
What is the Neutrophil count for moderate neutropenia?
[ "< 500/mm3", "500-1000/mm3", ">1000/mm3", "100/mm3" ]
B
Neutropenia is classified as mild, moderate, or severe based on the Absolute Neutrophil Count. Mild neutropenia 1000-1500 cells/mL Moderate neutropenia 500-1000/mL Severe neutropenia <500 cells/mL The risk of bacterial infection is related to both the severity and duration of the neutropenia.
sciq
sciq_01_04345
The two smallest carboxylic acids are formic acid and what else?
[ "carbonates acid", "ethylene acid", "acetic acid", "ascorbic acid" ]
C
The two smallest carboxylic acids are formic acid (found in the stingers of ants) and acetic acid (found in vinegar). Many organic compounds are considerably more complex than the examples described here. Many compounds, such as cholesterol discussed in the chapter-opening essay, contain more than one functional group....
math_qa
mathqa_03_00286
what would be the perimeter of the square whose side is equal to the diameter of the circle whose perimeter is 52.5 cm ?
[ "52.5'", "60.2'", "66.8'", "74.25'" ]
C
diameter of the circle = perimeter / ï € = 52.5 x 7 / 22 = 16.70 perimeter of the square = 16.70 x 4 = 66.8 cm answer : c
medmcqa
medmcqa_05_02595
A female of 30 years complains of chord like structures on her arm and breast without any history of injury and infection, these cords are best demonstrated on elevation of the hand, what is the most possible diagnosis?
[ "Poland syndrome", "Teitz disease", "Mondor's disease", "Ductectasia" ]
C
Ans. (c) Mondors disease.This is condition is seen in females due to thrombophlebitis of the superficial veins of the breast and anterior chest wall. In the absence of any previous injury and infection if there is thrombosed subcutaneous cord s that's highly suggestive of mondor's disease.Image source- style="font-fami...
sciq
sciq_01_04634
Where do the majority of species live?
[ "air", "land", "trees", "ocean" ]
D
Mollusks live in most terrestrial, freshwater, and marine habitats. However, the majority of species live in the ocean. They can be found in both shallow and deep water and from tropical to polar latitudes. They have a variety of ways of getting food. Some are free-living heterotrophs. Others are internal parasites. Mo...
sciq
sciq_01_09312
In a transverse wave, the highest point the wave reaches is known as the?
[ "axis", "flow", "crest", "valley" ]
C
In a transverse wave, particles of the medium move up and down at right angles to the direction of the wave. Wave amplitude of a transverse wave is the difference in height between the crest and the resting position. The crest is the highest point particles of the medium reach. The higher the crests are, the greater th...
sciq
sciq_01_03405
What is the most common type of capillary?
[ "large", "channels", "ending", "continuous" ]
D
Continuous Capillaries The most common type of capillary, the continuous capillary, is found in almost all vascularized tissues. Continuous capillaries are characterized by a complete endothelial lining with tight junctions between endothelial cells. Although a tight junction is usually impermeable and only allows for ...
ARC-Easy
arc_04_01045
Living things depend on energy from
[ "the Sun", "the Moon", "soil", "water" ]
A
null
openbookqa
obqa_02_02994
How can H2O on the ground eventually rise into the sky?
[ "freezing", "raining", "snowing", "evaporation" ]
D
evaporation is when water is drawn back up into the air in the water cycle
math_qa
mathqa_03_02926
1000 men have provisions for 17 days . if 500 more men join them , for how many days will the provisions last now ?
[ "12.9", "12.5", "11.3", "12.2" ]
C
"1000 * 17 = 1500 * x x = 11.3 answer : c"
sciq
sciq_01_01823
Salt hydrolysis is a reaction in which one of the ions from a salt reacts with what?
[ "water", "fat", "air", "proteins" ]
A
The fluoride ion is acting as a weak Brønsted-Lowry base. The hydroxide ion that is produced as a result of the above reaction makes the solution slightly basic. Salt hydrolysis is a reaction in which one of the ions from a salt reacts with water, forming either an acidic or basic solution.
medmcqa
medmcqa_05_03710
Which of the following is an epiphyseal lesion?
[ "Chondroblastoma", "Chondrosarcoma", "Fibrosarcoma", "Non ossifying fibroma" ]
A
Ans. is 'a' i.e., Chondroblastoma
math_qa
mathqa_03_01873
when positive integer x is divided by 11 , the quotient is y and the remainder is 4 . when 2 x is divided by 6 , the quotient is 3 y and the remainder is 5 . what is the value of 7 y – x ?
[ "2", "1", "0", "- 1" ]
D
"( 1 ) x = 11 y + 4 ( 2 ) 2 x = 18 y + 5 let ' s subtract equation ( 1 ) from equation ( 2 ) . 7 y + 1 = x 7 y - x = - 1 the answer is d ."
ARC-Easy
arc_04_01617
A generator converts mechanical energy to electrical energy by using a conducting metal loop turning in a
[ "magnetic field.", "gravitational field.", "steel sphere.", "copper sphere." ]
A
null
math_qa
mathqa_03_00924
if the sides of a triangle are 28 cm , 26 cm and 10 cm , what is its area ?
[ "120 cm 2", "112 cm 2", "776 cm 2", "130 cm 2" ]
D
"the triangle with sides 28 cm , 26 cm and 10 cm is right angled , where the hypotenuse is 28 cm . area of the triangle = 1 / 2 * 26 * 10 = 130 cm 2 answer : d"
sciq
sciq_01_01034
What is the motion that moves the forearm from the supinated position to the pronated position?
[ "flexion", "pronation", "extension", "supination" ]
B
Supination and Pronation Supination and pronation are movements of the forearm. In the anatomical position, the upper limb is held next to the body with the palm facing forward. This is the supinated position of the forearm. In this position, the radius and ulna are parallel to each other. When the palm of the hand fac...
sciq
sciq_01_04274
The galápagos islands are a group of 16 volcanic islands 600 miles off the west coast of what continent?
[ "south america", "asia", "north america", "europe" ]
A
The Galápagos Islands are a group of 16 volcanic islands 600 miles off the west coast of South America. The islands are famous for their many species found nowhere else. It was on these islands where Darwin began to develop his theory of evolution.
openbookqa
obqa_02_00985
Organisms with only one cell
[ "are prohibited from specializing", "can freely specialize openly", "are unsure what specializing is", "learn how to specialize" ]
A
a single-cell organism cannot specialize
sciq
sciq_01_02271
What is the name for a matter that has a fixed volume and a fixed shape?
[ "stable", "liquid", "gas", "solid" ]
D
Ice is an example of solid matter. A solid is matter that has a fixed volume and a fixed shape. Figure below shows examples of matter that are usually solids under Earth conditions. In the figure, salt and cellulose are examples of crystalline solids. The particles of crystalline solids are arranged in a regular repeat...
openbookqa
obqa_02_02019
A light is turned on and the circuit is closed so
[ "the house is old", "the connections get warm", "the light is off", "the light is broken" ]
B
electrical current running through a wire causes that wire to heat up
sciq
sciq_01_01474
In science, what is defined as the transfer of energy from a vibrating object in waves that travel through matter?
[ "vibration", "sound", "energy", "photons" ]
B
In science, sound is defined as the transfer of energy from a vibrating object in waves that travel through matter. Most people commonly use the term sound to mean what they hear when sound waves enter their ears. The tree above generated sound waves when it fell to the ground, so it made sound according to the scienti...
medmcqa
medmcqa_05_01785
Destruction of zona glomerulosa will deplete:
[ "Aldosterone", "Cortisol", "Testosterone", "Catecholamines" ]
A
The zona glomerulosa, a thin layer of cells that lies just  underneath  the  capsule, constitutes about 15 percent of the adrenal cortex. These cells are the only ones in the adrenal gland capable of secreting significant amounts of aldosterone because they contain the enzyme aldosterone synthase, which is necessary fo...
math_qa
mathqa_03_01266
the average age of a group of 12 students is 20 years . if 4 more students join the group , the average age increases by 1 year . the average age of the new students is
[ "22", "23", "24", "25" ]
C
"total age of 12 std = 20 * 12 total age of 16 std = 21 * 16 total age of 4 std = ( 21 * 16 ) - 20 * 12 = 96 avg of 4 std = ( 96 ) / 4 = 24 answer : c"
sciq
sciq_01_03184
Light moving from air into water is bent ___________ the normal?
[ "more", "less", "Longly", "thinly" ]
A
Light moving from air into water is bent ___________ the normal.
openbookqa
obqa_02_04628
This would be associated with a lack of sunlight:
[ "a wide sandy desert", "carbonic acid in groundwater", "a tropical beach scene", "a rice plantation in the North" ]
B
a cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone
medmcqa
medmcqa_05_00083
Grading of carcinoma epiglottis involving pre-epiglottic space will be:
[ "T3 stage", "T2 stage", "T1 stage", "T4 stage" ]
A
(Refer: PL Dhingra, Textbook of Ear, Nose, Throat, 6th edition, pg no: 308) Tumor staging of Supraglottic cancer
sciq
sciq_01_01048
If a sedimentary rock layer is not horizontal, what is it?
[ "mineralized", "deformed", "igneous", "striated" ]
B
Sedimentary rock layers that are not horizontal are deformed.
math_qa
mathqa_03_00759
the racing magic takes 90 seconds to circle the racing track once . the charging bull makes 40 rounds of the track in an hour . if they left the starting point together , how many minutes will it take for them to meet at the starting point for the second time ?
[ "3", "6", "9", "12" ]
A
"time taken by racing magic to make one circle = 90 seconds time taken bycharging bullto make one circle = 60 mins / 40 = 1.5 mins = 90 seconds lcm of 90 and 90 seconds = 90 seconds time taken for them to meet at the starting point for the second time = 2 * 90 sec = 180 seconds = 3 mins answer a"
sciq
sciq_01_02433
Invertebrates make up what percentage of all animal species?
[ "30 percent", "95 percent", "50 percent", "90 percent" ]
B
Invertebrates are animals that lack a vertebral column, or backbone. All the phyla in Table above , except the Phylum Chordata, consist only of invertebrates. Even the Phylum Chordata includes some invertebrate taxa. Invertebrates make up about 95 percent of all animal species.
math_qa
mathqa_03_00984
the sum of two numbers is 40 and their product is 375 . what will be the sum of their reciprocals ?
[ "1 / 40", "8 / 75", "75 / 4", "75 / 8" ]
B
( 1 / a ) + ( 1 / b ) = ( a + b ) / ab = 40 / 375 = 8 / 75 answer : b
ARC-Easy
arc_04_00188
A baby kit fox grows to become an adult with a mass of over 3.5 kg. What factor will have the greatest influence on this kit fox's survival?
[ "the size of the fox's ears", "the conditions of the fox's habitat", "the average number of fox offspring", "the social behaviors within the fox population" ]
B
null
openbookqa
obqa_02_04569
There is a growing movement to harness the power of wind in order to
[ "power rangers", "nothing", "heat our homes", "eat cookies" ]
C
a windmill converts wind energy into electricity
math_qa
mathqa_03_00075
julie put half of her savings in a savings account that pays an annual simple interest and half in a savings account that pays an annual compound interest . after two years she earned $ 120 and $ 126 from the simple interest account and the compound interest account respectively . if the interest rates for both account...
[ "600", "720", "1080", "1200" ]
D
"$ 120 for 2 years = $ 60 per year . extra $ 6 yearned with the compound interest is the percent yearned on percent . so , $ 6 is yearned on $ 60 , which means that the interest = 10 % . this on the other hand means that half of the savings = 60 * 10 = $ 600 . twice of that = $ 1,200 . answer : d ."
sciq
sciq_01_07756
What were the first animals to have true lungs and limbs for life on land?
[ "amphibians", "mammals", "reptiles", "birds" ]
A
Amphibians were the first animals to have true lungs and limbs for life on land. However, they still had to return to water to reproduce. That’s because their eggs lacked a waterproof covering and would dry out on land. The first fully terrestrial vertebrates were amniotes. Amniotes are animals that produce eggs with i...
medmcqa
medmcqa_05_04496
The bore of a gun can be examined by:-
[ "Broach cutter", "Helixometer", "Comparison microscope", "Simple microscope" ]
B
Helixometer: An instrument for inspecting the interior of a gun barrel and for measuring the rate of twist of the rifled bore of a firearm. Comparison microscope is used to match the marks in test bullet & crime bullet Broach cutter is used to produce riflings in a gun.
ARC-Challenge
arc_04_02356
Which of the following is the best evidence that an area of land was once covered by a glacier?
[ "limestone caverns", "marine fossils", "abrasion of surface rocks", "peeling slabs of rock" ]
C
null
medmcqa
medmcqa_05_03446
Central diabetes insipidus is characterised by-
[ "Low plasma and low urine osmolality", "High plasma and high urine osmolality", "Low plasma and high urine osmolality", "Low urine and high plasma osmolality" ]
D
Central diabetes insipidus is characterised by deficient production of ADH by the hypothalamus. In pituitary, gestational, or nephrogenic DI, there is polyuria (5-20 L or more in 24 hrs)and the urine is of low specific gravity and osmolality. The polyuria results in a small (1-2%) decrease in body water and a commensur...
openbookqa
obqa_02_03616
Because of the stem of plants, they are able to do what in the soil
[ "fly", "balance upright", "cry", "sing" ]
B
a stem is a source of support for a plant
medmcqa
medmcqa_05_00928
Intracavitary electrocardiography is a diagnostic aid in-
[ "Tricuspid regurgitation", "Endocardial fibroelastosis", "Endomyocardial fibrosis", "Ebstein's anomaly of the tricuspid valve" ]
D
Ans. is 'd' i.e., Ebstein's anomaly of tricuspid valve Four chambered view in two dimension echocardiogram is diagnostic as it outlines the displaced tricuspid valve.
ARC-Easy
arc_04_01043
After months of studying and obtaining data on the behavior of birds, biologists from around the world will look at the data and
[ "come up with several possible interpretations.", "reject it and do their own investigations.", "change the data to fit their expectations.", "publish their own interpretations in a science journal." ]
A
null