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Homonym: a word that has the same spelling and the same pronunciation as another world, but a different meaning Same spelling, different meaning Imagine, then a situation where two words are spelt and pronounced exactly the same way, but have completely different meanings.Welcome to the world of homonyms.Take, for exam...
[ "They share the same spellings regardless of meanings.", "We can't know their meanings without context.", "We may still feel confused even with context.", "Their ambiguity brings great trouble to our life." ]
D
MMLU_train
The remainder is transferred by contraction of what before the ventricles begin to contract?
[ "the stomach", "the atria", "the large intestine", "the arteries" ]
B
SCiQ_train
What common sea creature can be both awake and asleep at the same time?
[ "dolphins", "Whales", "reefs", "sharks" ]
A
SCiQ_train
What type of equations allows calculation of the wavelength of any moving object?
[ "debroglie wave", "develpoment wave", "fluctuations wave", "disc wave" ]
A
The deBroglie wave equations allows calculation of the wavelength of any moving object.
SCiQ_train
Molecules with a carboxyl group are called what?
[ "carboxylic acids", "acetic acids", "Fatty acids", "catalyzed acids" ]
A
Molecules with a carboxyl group are called carboxylic acids. As with aldehydes, the functional group in carboxylic acids is at the end of a carbon chain. Also as with aldehydes, the C atom in the functional group is counted as one of the C atoms that defines the parent hydrocarbon name. To name carboxylic acids, the pa...
SCiQ_train
What is one major cause of skin cancer?
[ "infrared light", "visible light", "sunscreen", "ultraviolet light" ]
D
The most important way to keep your skin healthy is to protect it from ultraviolet light. Over-exposure to ultraviolet light can cause skin cancer. Keeping the skin clean can help prevent acne.
SCiQ_train
As an erythrocyte matures in the red bone marrow, it extrudes its nucleus and most of its other what?
[ "electrons", "energy", "moisture", "organelles" ]
D
Shape and Structure of Erythrocytes As an erythrocyte matures in the red bone marrow, it extrudes its nucleus and most of its other organelles. During the first day or two that it is in the circulation, an immature erythrocyte, known as a reticulocyte, will still typically contain remnants of organelles. Reticulocytes ...
SCiQ_train
Anosmia, the loss of what sense, is often the result of the olfactory nerve being severed?
[ "smell", "taste", "balance", "general sensitivity" ]
A
Nervous System Anosmia is the loss of the sense of smell. It is often the result of the olfactory nerve being severed, usually because of blunt force trauma to the head. The sensory neurons of the olfactory epithelium have a limited lifespan of approximately one to four months, and new ones are made on a regular basis....
SCiQ_train
A man spends Rs. 1600 per month on an average for the first three months, Rs 1550 for next four months and Rs. 1800 per month for the last five months and saves Rs . 2800 a year. What is his average monthly income?
[ "1900", "2010", "2200", "2100" ]
A
Total expenditure for the first 3 months = 3 × 1600 = 4800 Total expenditure for 4 months = 4 × 1550 = 6200 Total expenditure for 5 months = 5 × 1800 = 9000 Total expenditure and saving (which is income for one year) = 4800 + 6200 + 9000 + 2800 = Rs. 22800 So, Average monthly income = 22800/12 = Rs. 1900 A
AquaRat_train
A student is looking at insects using a magnifying lens. What about the insects can best be seen with the magnifying lens?
[ "different colors of insect bodies", "how insects protect themselves", "type of eyes insects have", "size of the insects" ]
C
MMLU_train
The average age of 15 students of a class is 15 years. Out of these, the average age of 4 students is 14 years and that of the other 10 students is 16 years, The age of the 15th student is
[ "14", "9", "11", "15" ]
B
Explanation: Age of the 15th student = [15 * 15 - (14 * 5 + 16 * 9)] = 9 years. Answer: C
AquaRat_train
Jill is dividing her 16-person class into two teams of equal size for a basketball game. If no one will sit out, how many different match-ups between the two teams are possible?
[ "10", "6435", "25", "2520" ]
B
With 16 players, the process of figuring out how many groups of 8 can be formed is pretty straight-forward.... 16C8 = 16!/(8!8!) = 12870 possible groups of 8 Once forming that first group of 8, the remaining 8 players would all be placed on the second team by default. The 'twist' is that the two teams of 8 canshow upin...
AquaRat_train
Jeff Corwin is a scientist and writer. He does these jobs with one life goal help save animals and their habitats. His latest book, 100 Heartbeats: The Race to Save Earth's Most Endangered Species. Is a collection of stories about animals on the edge of _ . Corwin recently talked to a reporter. Reporter: How would you...
[ "protect the environment", "do some scientific research", "save animals and their habitats.", "Let more people know about nature." ]
C
MMLU_train
What are living echinoderms divided into five of?
[ "sexes", "clades", "species", "classifications" ]
B
SCiQ_train
Tearing an object changes that object's
[ "formation", "biology", "chemical composition", "nutrition" ]
A
MMLU_train
In which oceanic zone do clams and crabs survive by burrowing in the sand?
[ "oceanic", "intertidal", "deep ocean", "open ocean" ]
B
MMLU_train
Luke Dollar is a scientist. He has spent many years in Madagascar studying lemurs . Here is an interview with him. Reporter: What were you like as a kid? Luke: As a kid, I was an explorer . I lived with my grandparents on a farm in Alabama. I spent a lot of time outdoors. It was a lot of fun and I enjoyed that. From ...
[ "Played music.", "Took photos.", "Wrote for newspapers.", "Travelled all over the US." ]
B
MMLU_train
Doctors are the persons helping people keep healthy. Some doctors use magic, some use needles and others use pills. Who are they? Among the Indians of North America the "medicine man" was a very important person. He could cure illnesses, and he could speak to the spirits--the supernatural forces that controlled the wor...
[ "is the only way to cure many dangerous illnesses", "can be used to cure all kinds of illnesses", "is effective to cure many illnesses", "is popular among the western people" ]
C
MMLU_train
What kind of process occurs without the need for a continual input of energy from some external source?
[ "spontaneous process", "Different Process", "induced process", "Decay Process" ]
A
Summary 16.1 Spontaneity Chemical and physical processes have a natural tendency to occur in one direction under certain conditions. A spontaneous process occurs without the need for a continual input of energy from some external source, while a nonspontaneous process requires such. Systems undergoing a spontaneous pro...
SCiQ_train
A basket of 1430 apples is divided equally among a group of apple lovers. If 45 people join the group, each apple lover would receive 9 apples less. How many apples did each person get before 45 people joined the feast?
[ "20.", "23", "21", "22" ]
D
if 1430 is divisible by anyone of the answer choices. A.1430/20 = 143/2 B 1430/21 = 1430/21 C 1430/22 = 65 If 1430 apple was divided among 65 people, each would have received 22. After addition of 45 people the answer should be 13. 1430/110 = 13. C is the answer.
AquaRat_train
Caribbean natives have a dark skin tone do to
[ "unicorns", "solar radiation", "lack of nutrients", "camouflage" ]
B
MMLU_train
A, B and C completed a piece of work costing Rs.1800. A worked for 6 days, B for 4 days and C for 9 days. If their daily wages are in the ratio 5 : 6 : 4, how much amount will be received by A?
[ "Rs.850", "Rs. 600", "Rs.750", "Rs.900" ]
B
Explanation: The new ratio = wages ratio × No. of days A = 5 × 6 = 30 B = 6 × 4 = 24 C = 4 × 9 = 36 Therefore, the ratio of the amount received = 30 : 24 : 36 = 5 : 4 :6 Total ratio = 15 1 unit of ratio = 1800/15 = Rs. 120 Therefore, amount received by A = 5 units = 5 × 120 = Rs.600. Answer: Option B
AquaRat_train
What is a series of processes that remove unwanted substances from water called?
[ "water cleaning", "water filtration", "water treatment", "water dilution" ]
C
Water treatment is a series of processes that remove unwanted substances from water. The goal of water treatment is to make the water safe to return to the natural environment or to the human water supply. Treating water for other purposes may not include all the same steps. That’s because water used in agriculture or ...
SCiQ_train
Unlike theories, which are proved true, what are often falsified?
[ "conclusions", "hypotheses", "samples", "controls" ]
B
SCiQ_train
What source of ocean pollution kills animals by coating them?
[ "chemical spill", "oil spill", "plants spill", "grain spill" ]
B
Oil spills are another source of ocean pollution. To get at oil buried beneath the seafloor, oil rigs are built in the oceans. These rigs pump oil from beneath the ocean floor. Huge ocean tankers carry oil around the world. If something goes wrong with a rig on a tanker, millions of barrels of oil may end up in the wat...
SCiQ_train
I had been to several doctors as a child, but I have a special place in my heart for Dr. Vincent. He was a Pediatric Cardiologist at UCLA back in 1971 who saved my life. I was eight years old at the time with a severe heart problem and I needed heart surgery. My Mom did not have the money, and without the surgery there...
[ "the operation was experimental.", "she didn't trust in Dr. Vincent", "the operation would be extremely painful", "she felt scared and all alone" ]
B
MMLU_train
In a certain code VOLITION is written as UMIEUKRR, MARTINET is written as LYOPJPMX. How is DESTROYS written in this code?
[ "CCPPSQBW", "CCPPSQBZ", "CCPPSQBU", "CCPPSQBX" ]
A
as per the sequence the ans is D-1 = C E-2 = C S-3=P T-4=P R+1=S O+2=Q Y+3=B S+4=W ans is CCPPSQBW ANSWER:A
AquaRat_train
Imagine what you could do with a machine that could make things disappear. For inspiration, you could read some books. In the books of J.R.R. Tolkein, Bilbo Baggins finds a ring that can make him disappear. Of course, there's also poor Harry Potter, who used his invisibility cloak to hide from danger. Now that you've...
[ "the film Harry Potter", "the work of a British physicist", "a paper published by a Scottish physicist", "the book of J.R.R. Tolkein" ]
B
MMLU_train
What are compounds with the same molecular formula but different structures and properties called?
[ "polymers", "isomers", "substrates", "monomers" ]
B
SCiQ_train
Running at the same constant rate,6 identical machines can produce a total of 270 bottles per minute.At this rate,how many bottles could 16 such machines produce in 4 minutes ?
[ "10800", "1800", "None of these", "2880" ]
D
Solution Let the required number of bottles be x. More machines,More bottles (Direct Proportion) More minutes,More bottles (Direct Proportion) ∴ 6 × 1 × x = 16 × 4 × 270 ⇔ x = 16x4x270/6= 2880 . Answer A
AquaRat_train
At a certain automobile dealership that sells only Tajima's and Franks, the number of non hybrid Tajima's is 35 less than 3 times the number of hybrid Tajima's. 205 total Tajima's are currently owned by the dealership. If the ratio of hybrid Tajima's to non hybrid Franks is 5:4 and there are 280 total automobiles owned...
[ "60", "27", "48", "87" ]
C
First, I only focus on Tajima's. Let x be hybrid Tajima's and y be non hybrid Tajima's. We know that x + y = 205 and we know that y=3x-35, Therefore we can conclude that x= 60 and y= 145 Next, let a be the number of non hybrid franks, we know the ratio, 60/a = 5/4, therefore a=48 Total number of franks is 75, so 75 - 4...
AquaRat_train
Two trains of equal length, running with the speeds of 60 and 40 kmph, take 50 seconds to cross each other while they are running in the same direction. What time will they take to cross each other if they are running in opposite directions?
[ "18 sec", "12 sec", "17 sec", "10 sec" ]
D
RS = 60 -40 = 20 * 5/18 = 100/18 T = 50 D = 50 * 100/18 = 2500/9 RS = 60 + 40 = 100 * 5/18 T = 2500/9 * 18/500 = 10 sec Answer: A
AquaRat_train
A, B and C enter into a partnership and their shares are in the ratio 1/2 : 1/3 : 1/4. After 2 months, A withdraws half of his capital and after 10 months, a profit of Rs. 378 is divided among them. What is B's share ?
[ "130", "144", "None of these", "140" ]
B
Explanation : Ratio of initial investments = 1/2 : 1/3 : 1/4 = 6 : 4 : 3. Let their initial investments be 6x, 2x and 3x respectively. A : B : C = (6x * 2 + 3x * 10) : (4x * 12) : (3x * 12) = 42 : 48 : 36 = 7 : 8 : 6. B's share = Rs. (378 * 8/21) = Rs. 144. Answer : D
AquaRat_train
(2^2-1)(2^2+1)(2^4+1)(2^10+1)=
[ "2^16 + 1", "2^16(2^16-1)", "2^128 - 1", "2^18 - 1" ]
D
A: is correct (2^2-1)* (2^2+1)=(2^4-1) (2^4-1)*(2^4+1)=2^8-1 (2^8-1)*(2^10 +1)=2^18-1 You can apply to this formula: a^2- b^2=(a-b)*(a+b)
AquaRat_train
In a friendship gang Raja has 9 gang, in how many ways can he invite one or more of the gang to his house?
[ "263", "511", "987", "124" ]
B
Raja can select one or more than one of his 8 gang. => Required number of ways = 2^9 – 1= 511. D
AquaRat_train
What is the term for cellular eating?
[ "ancylosis", "consumption", "Pinocytosis", "phagocytosis" ]
D
Phagocytosis , or cellular eating, occurs when the dissolved materials enter the cell. The plasma membrane engulfs the solid material, forming a phagocytic vesicle.
SCiQ_train
A and B start a business jointly. A invests Rs 16000 for 8 month and B remains in the business for 4 months. Out of total profit, B claims 2/7 of the profit . How much money was contributed by B?
[ "12500", "12800", "11500", "13000" ]
B
B claims 2/7 of the profit A claims remaining 5/7 of the profit => A : B =5/7:2/7=5:2 Let the money contributed by B =b Then A:B =16000×8:b×4 Therefore, 16000×8:b×4=5:2 16000×8×2=b×4×5 16000×2×2=b×5 3200×2×2=b b=12800 Answer is A.
AquaRat_train
What is the largest body in the solar system?
[ "earth", "planet", "sun", "asteroids" ]
C
Our Sun is a star. This star provides light and heat and supports almost all life on Earth. The Sun is the center of the solar system. It is by far the largest part of the solar system. Added together, all of the planets make up just 0.2 percent of the solar system's mass. The Sun makes up the remaining 99.8 percent of...
SCiQ_train
What term refers to the balance, or equilibrium, within the cell or a body, and an organism’s ability to keep a constant internal environment?
[ "ketosis", "metabolism", "consciousness", "homeostasis" ]
D
Homeostasis refers to the balance, or equilibrium, within the cell or a body. It is an organism’s ability to keep a constant internal environment. Keeping a stable internal environment requires constant adjustments as conditions change inside and outside the cell. The adjusting of systems within a cell is called homeos...
SCiQ_train
In frequency, the larger the air column, the larger the what?
[ "gravity", "mass", "wavelength", "absorption" ]
C
a) The water forms the bottom of the tube and thus where the node of the wave will be. Thus the air column is where the sound wave can exist. The larger the air column, the larger the wavelength. Frequency is inversely proportional to wavelength, thus the tube with the smallest air column will have the highest frequenc...
SCiQ_train
In a function they are distributing noble prize. In how many ways can 3 prizes be distributed among 4 boys when a boy gets any no. of prizes?
[ "70", "56", "67", "64" ]
D
Ans.(C) Sol. In this case, repetitions are allowed, so all the three prizes can be given in 4 ways, i.e. (4 x 4 x 4) ways = 43 ways = 64 ways Or nr ways = 43 ways = 64 ways
AquaRat_train
What cellular structure is used during endocytosis to allow molecules to enter the cell?
[ "tissues", "vesicles", "membranes", "nucleus" ]
B
SCiQ_train
In Goshawk-Eurasian nature reserve 30 percent of the birds are Hawks, and 40 percent of the non-Hawks are Paddyfield-Warblers. If there are 25 percent as many Kingfishers as Paddyfield-Warblers in the reserve, then what percent of the birds in the nature reserve are not Hawks, Paddyfield-Warblers, or Kingfishers?
[ "45%", "80%", "35%", "25%" ]
C
Since the problem doesn't depend on the number of birds in reserve you can suppose that there are 100 birds. From them 100*0.3=30 are Hawks.So, there are 70 non-Hawks. There are 0.4*70=28 Paddyfield-Warblers. Therefore, there are 0.25*28=7 Kingfishers. The total number of birds in the nature reserve that are not Hawks,...
AquaRat_train
The volume of a cube is 729 cc. Find its surface.
[ "287", "255", "486", "556" ]
C
a3 = 729 => a = 9 6a2 = 6 * 9 * 9 = 486 Answer:A
AquaRat_train
Mr Yadav spends 60% of his monthly salary on consumable items and 50% of the remaining on clothes and transport. He saves the remaining amount. If his savings at the end of the year were 19008, how much amount per month would he have spent on clothes and transport?
[ "8076", "9691.2", "1625", "1584" ]
D
∵ Amount, he have spent in 1 month on clothes transport = Amount spent on saving per month ∵ Amount, spent on clothes and transport = 19008⁄12 = 1584 Answer D
AquaRat_train
Here is your best chance to travel around the UK in 2012: More than 200 B&Bs(bed & breakfast)across England, Scotland, Wales and Northern Ireland are selected to offer you amazing services for your stay at their lowest prices! Don't miss it. Just collect the vouchers in ourB&B Dailyprinted from 01/04/2012 to 07/04/2012...
[ "PS70", "PS40", "PS35", "PS30" ]
B
MMLU_train
What is so amazing about giving blood? The National Blood Service, which covers all of England and North Wales, needs nearly two and a half million blood donations each year. When you give blood, you'll be doing one of the most amazing things anybody could dream of -- saving a life. _ All types of blood are needed --...
[ "take a blood test", "wait for one day", "fill in a form", "rest for a while" ]
A
MMLU_train
Lying with their mouths open, a behavior called gaping, probably serves what function for crocodiles?
[ "sleeping", "cooling down", "digesting", "eating" ]
B
All crocodilians have, like humans, teeth set in bony sockets. But unlike mammals, they replace their teeth throughout life. Crocodiles and gharials (large crocodilians with longer jaws) have salivary glands on their tongue, which are used to remove salt from their bodies. This helps with life in a saltwater environmen...
SCiQ_train
Rubber is an example of what type of substances that do not allow electrons to move through them?
[ "semi-conductor", "insulators", "conductor", "solids" ]
B
A common method of producing charge in the lab is to rub cat or rabbit fur against stiff rubber, producing a negative charge on the rubber rod. If you hold a rubber rod on one end and rub only the tip of the other end with a fur, you will find that only the tip becomes charged. The electrons you add to the tip of the r...
SCiQ_train
5% people of a village in a country died by violence, 15% of the remaining left the village on account of fear. If now the population is reduced to 3553, how much was it at the beginning?
[ "5000", "4400", "3400", "5500" ]
B
x=> x*95/100*85/100 = 3553 = x = 4400 ANSWER B
AquaRat_train
The average of first nine prime numbers which are odd is?
[ "11.55", "13.55", "12.55", "12.95" ]
C
Sum of first 10 prime no. which are odd = 113 Average = 113/9 = 12.55 ANSWER:A
AquaRat_train
What term is used to describe the electrostatic process used by most copy machines?
[ "xerography", "electrography", "microphotography", "titanomachy" ]
A
Xerography Most copy machines use an electrostatic process called xerography—a word coined from the Greek words xeros for dry and graphos for writing. The heart of the process is shown in simplified form in Figure 18.39. A selenium-coated aluminum drum is sprayed with positive charge from points on a device called a co...
SCiQ_train
Praveen starts business with Rs.3500 and after 5 months, Hari joins with Praveen as his partner. After a year, the profit is divided in the ratio 2 : 3. What is Hari’s contribution in the capital?
[ "Rs.8500", "Rs.6000", "Rs.9000", "Rs.7500" ]
C
Let Hari’s capital be Rs. x. Then, 3500 * 12/7x = 2/3 => 14x = 126000 => x = 9000. ANSWER:D
AquaRat_train
There are 100 students in 3 sections A, B and C of a class. The average marks of all the three sections was 84. The average of B and C was 87.5 and the average marks of students in A section was?
[ "20", "27", "99", "28" ]
A
Numbers of students in section A = x Numbers of students in section B and C = (100 – x) x 70 + (100 – x) 87.5 = 84 100 70x + 87.5 100 – 87.5x = 8400 8750 – 17.5x = 8400 17.5x = 8750 – 8400 => x = 20. Answer: A
AquaRat_train
Solar pumps move liquids continuously from the
[ "space", "glaciers", "sky", "ground" ]
D
MMLU_train
Topographic maps have a horizontal scale to indicate what distances?
[ "horizontal", "vertical", "diagonal", "perpendicular" ]
A
Topographic maps have a horizontal scale to indicate horizontal distances.
SCiQ_train
Which event would most likely cause a rapid extinction of organisms?
[ "a large asteroid impact", "regional drought", "new glacier formation", "a decrease in the growth of weeds" ]
A
MMLU_train
A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered.If the area of the field is 680 sq.ft, how many feet of fencing will be required?
[ "11ft", "44ft", "66ft", "88ft" ]
D
Given that length and area, so we can find the breadth. Length x Breadth = Area 20 x Breadth = 680 Breadth = 34 feet Area to be fenced = 2B + L = 2 (34) + 20 = 88 feet Answer: B) 88ft
AquaRat_train
Dalton's law and henry's law both describe aspects of what type of exchange?
[ "liquid", "electron", "energy", "gas" ]
D
22.4 Gas Exchange The behavior of gases can be explained by the principles of Dalton’s law and Henry’s law, both of which describe aspects of gas exchange. Dalton’s law states that each specific gas in a mixture of gases exerts force (its partial pressure) independently of the other gases in the mixture. Henry’s law st...
SCiQ_train
When atoms gain or lose electrons, what is formed?
[ "molecules", "crystals", "gas", "ions" ]
D
As we saw in the previous chapter, ions are formed when atoms gain or lose electrons. If an atom loses one or more electrons, the resulting ion has a positive charge (more protons are present than electrons). If the atom gains one or more electrons, the resulting ion has a negative charge (more electrons are present th...
SCiQ_train
What protects the scalp from ultraviolet light exposure and loss of body heat?
[ "ground hair", "receding hair", "head hair", "temporal hair" ]
C
Head hair protects the scalp from ultraviolet light exposure and loss of body heat. Hair in eyelashes, eyebrows, and nostrils traps water, dust, and other irritants. Nails protect the ends of fingers and toes and enhance the sense of touch.
SCiQ_train
In a certain college, 20% of the boys and 40% of the girls attended the annual college outing. If 35% of all the students are boys, what percent of all the employees went to the outing?
[ "36%", "37%", "34%", "33%" ]
D
assume total students =100 in that 35 students are boys ,remaining 65 are girls........ 20% of boys(35) =7 40% of girls(65) =26 totally (26+7)=33 mens went to outing...... 33 is 33% in 100 so, the answer is 33% ANSWER:A
AquaRat_train
A window is more than just an opening that you can see through. It can affect the way a building looks,how much energy a building USES and even how you feel. Scientists are now working on ncw technologies to create"smart windows". Unlike normal windows,high-tech smart windows can change from clear to dark and back ...
[ "Windows Are Important", "Buildings in the Future", "A Kind of New Window--the Smart Window", "The Magic of High-tech" ]
B
MMLU_train
Stomata must control the transpiration of water vapor and the exchange of carbon dioxide and oxygen that take place during what process?
[ "glycolysis", "fertilization", "spermatogenesis", "photosynthesis" ]
D
For photosynthesis, stomata must control the transpiration of water vapor and the exchange of carbon dioxide and oxygen. Stomata are flanked by guard cells that swell or shrink by taking in or losing water through osmosis. When they do, they open or close the stomata.
SCiQ_train
What may be lost when waves travel through matter, but not when they travel through space?
[ "threshold", "energy", "matter", "frequency" ]
B
As you can see in the Figure above , the electric and magnetic fields that make up an electromagnetic wave are perpendicular (at right angles) to each other. Both fields are also perpendicular to the direction that the wave travels. Therefore, an electromagnetic wave is a transverse wave. However, unlike a mechanical t...
SCiQ_train
If Josh, Doug, and Brad have a total of $80 between them, and Josh has five times as much money as Brad but only half as much as Doug, how much money does Doug have?
[ "$8", "$27", "$32", "$50" ]
D
Josh+Doug+Brad = 72 ; Josh = 5 Brad, Josh =1/2 Doug Josh+1/5 Josh+ 2/1 Josh = 80 (substituted the given values) Josh = 25. 25= 1/2 Doug => Doug =50 Answer is E.
AquaRat_train
If a sedimentary rock layer is not horizontal, what is it?
[ "striated", "igneous", "mineralized", "deformed" ]
D
Sedimentary rock layers that are not horizontal are deformed.
SCiQ_train
In what time will a train 320 m long cross an electric pole, it its speed be 144 km/hr?
[ "2.9 sec", "8.0 sec", "3.5 sec", "9.5 sec" ]
B
Speed = 144 * 5/18 = 40 m/sec Time taken = 320/40 = 8.0 sec. Answer: B
AquaRat_train
What causes polarization in a neutral object?
[ "signaling of charges", "combining of charges", "meaning of charges", "separation of charges" ]
D
Charging by Induction It is not necessary to transfer excess charge directly to an object in order to charge it. Figure 18.13 shows a method of induction wherein a charge is created in a nearby object, without direct contact. Here we see two neutral metal spheres in contact with one another but insulated from the rest ...
SCiQ_train
For an agricultural experiment, 300 seeds were planted in one plot and 200 were planted in a second plot. If exactly 25 percent of the seeds in the first plot germinated and exactly 35 percent of the seeds in the second plot germinated, what percent of the total number of seeds germinated?
[ "12%", "26%", "60%", "29%" ]
D
In the first plot 25% of 300 seeds germinated, so 0.25 x 300 = 75 seeds germinated. In the second plot, 35% of 200 seeds germinated, so 0.35 x 200 = 70 seeds germinated. Since 75 + 70 = 145 seeds germinated out of a total of 300 + 200 = 500 seeds, the percent of seeds that germinated is (145/500) x 100%, or 29%. Answer...
AquaRat_train
The average (arithmetic mean) of four numbers is 4x + 2. If one of the numbers is x, what is the average of the other three numbers?
[ "x + 1", "5x + 8/3", "3x + 3", "15x + 12" ]
B
If the average of four numbers is 4x + 3, then the sum of all four numbers if 4 * (4x + 2) = 16x + 8. If one of the numbers is x, then the average of the remaining three numbers would be: (16x + 8 - x)/3 = (15x + 8)/3 = 5x + 8/3. Answer is D.
AquaRat_train
Organs that produce eggs and secrete estrogen are part of what system?
[ "male reproductive system", "female reproductive system", "digestive system", "circulatory system" ]
B
one of two female reproductive organs that produces eggs and secretes estrogen.
SCiQ_train
What part of the sweet potato store sugar from photosynthesis as starch?
[ "skin", "plants", "roots", "shrubs" ]
C
Secondary growth of sweet potato roots provides more space to store food. Roots store sugar from photosynthesis as starch. What other starchy roots do people eat?.
SCiQ_train
In traditional Chinese medicine, the body, mind and spirit cannot be divided and so the unique whole-body treatment in Tui Na can also be a useful treatment correcting any imbalances in the body's energy before symptoms and disease can develop. It also works to bring back emotional peace as well as physical health. Thi...
[ "By linking the organ to an emotion.", "By saying anything one does not want to.", "By discussing their problems with others.", "By balancing the energy in the related organ." ]
D
MMLU_train
Linked genes are located on the same what?
[ "nucleolus", "chromosome", "genome", "bacterium" ]
B
Genes that are located on the same chromosome are called linked genes . Alleles for these genes tend to segregate together during meiosis, unless they are separated by crossing-over. Crossing-over occurs when two homologous chromosomes exchange genetic material during meiosis I. The closer together two genes are on a c...
SCiQ_train
The lunar landscape is covered by craters caused by what?
[ "earth impacts", "water", "asteroid impacts", "volcanoes" ]
C
The landscape of the Moon - its surface features - is very different from Earth. The lunar landscape is covered by craters caused by asteroid impacts ( Figure below ). The craters are bowl-shaped basins on the Moon’s surface. Because the Moon has no water, wind, or weather, the craters remain unchanged.
SCiQ_train
If k is the sum of the digits of integer m, and m=16n, where n is an integer, which of the following must be true?
[ "k is a multiple of 9", "m is a multiple of 2k", "k is not divisible by 9", "k is a multiple of 6" ]
C
m= 16n i.e n =1,2,3 ,4 etc or -1,-2.-3 ,-4 then m 16,32,48,64 or -16 ,-32 ,-48 ,-64 then k 7,5 12,10 or -(1+6) , -(3+2) , -(4+8) ,-(6+4) ans A
AquaRat_train
In how many different number of ways 4 boys and 2 girls can sit on a bench such that girls always sit together.
[ "B)240", "D)780", "A)720", "C)740" ]
A
240 Option 'B'
AquaRat_train
If $5,000,000 is the initial amount placed in an account that collects 7% annual interest, which of the following compounding rates would produce the largest total amount after two years?
[ "compounding monthly", "All four of these would produce the same total", "compounding daily", "compounding quarterly" ]
C
This will produce the maximum yield as the interest accrued each day will be added the very next day to the Principal amount for further computation of interest. This process will be repeated every day till the amount matures Compounding annually will give least returns Compounding daily :Answer: D
AquaRat_train
During a lecture, a professor was talking about the potential that hydrogen has for exploding under certain conditions. Which was most likely the topic of the professor's lecture?
[ "Conductivity of Gases", "Phase Changes in Matter", "Chemical Properties of Gases", "Physical Properties of Elements" ]
C
MMLU_train
What model postulates that electrons orbit the nucleus at fixed energy levels?
[ "coreolis", "bohr", "Newton's model", "atomic model" ]
B
The Bohr model postulates that electrons orbit the nucleus at fixed energy levels.
SCiQ_train
If a card is randomly drawn from a well shuffled pack of cards, what is the probability of drawing a black card or a heart?
[ "11/13", "15/26", "3/4", "7/13" ]
C
There are 26 black cards and 13 hearts. P(black card or heart) = 39/52 = 3/4 The answer is D.
AquaRat_train
Two trains, B and C, started simultaneously from opposite ends of a 50-mile route and traveled toward each other on parallel tracks. Train B, traveling at a constant rate, completed the 50-mile trip in 4 hours; Train C, traveling at a constant rate, completed the 50-mile trip in 2 hours. How many miles had train B trav...
[ "32.66", "24", "46", "16.66" ]
D
As the ratio of the rates of B and C is 2 to 4 then the distance covered at the time of the meeting (so after traveling the same time interval) would also be in that ratio, which means that B would cover 2/(2+4)=2/6 of 50 miles: 50*2/6=16.66 miles. Answer: A.
AquaRat_train
A cell can photosynthesize if it is
[ "a ferret's", "a tern's", "a willow's", "a gila monster's" ]
C
MMLU_train
The sum of the superscripts in an electron configuration is equal to the number of electrons in that atom, which is in turn equal to what number?
[ "orbital number", "shell number", "atomic number", "metallic number" ]
C
Electron configuration notation eliminates the boxes and arrows of orbital filling diagrams. Each occupied sublevel designation is written followed by a superscript that is the number of electrons in that sublevel. For example, the hydrogen configuration is 1 s 1 , while the helium configuration is 1 s 2 . Multiple occ...
SCiQ_train
All the blood in the human body is filtered about 60 times a day by what?
[ "kidneys", "heart", "liver", "lungs" ]
A
blood containing the metabolic wastes from cells. All the blood in the human body is filtered about 60 times a day by the kidneys. The nephrons remove wastes, concentrate them, and form urine that is collected in the bladder. Internally, the kidney has three regions—an outer cortex, a medulla in the middle, and the ren...
SCiQ_train
A train 280 m long, running with a speed of 63 km/hr will pass a tree in?
[ "22 sec", "12 sec", "17 sec", "16 sec" ]
D
Speed = 63 * 5/18 = 35/2 m/sec Time taken = 280 * 2/35 = 16 sec Answer:B
AquaRat_train
Personal protection equipment is essential when
[ "experimenting with volatile and vaporous liquids", "dumping lab rats in the incinerator", "interfacing with tenured professors", "wearing a sports cup" ]
A
MMLU_train
What is the term for a close relationship between two species in which at least one species benefits.
[ "endosymbiosis", "candiasis", "symbiosis", "extosis" ]
C
Symbiosis is a close relationship between two species in which at least one species benefits. Types of symbiosis include mutualism, parasitism, and commensalism.
SCiQ_train
What is glucose used for the bacteria?
[ "energy", "fuel", "food", "reproduction" ]
C
Photosynthetic bacteria use the energy of the sun to make their own food. In the presence of sunlight, carbon dioxide and water are turned into glucose and oxygen. The glucose is then turned into usable energy. Glucose is like the "food" for the bacteria. An example of photosynthetic bacteria is cyanobacteria, as seen ...
SCiQ_train
What are plants in the diploid generation called?
[ "monocots", "keratinocytes", "haplocytes", "sporophytes" ]
D
Plants in the diploid generation are called sporophytes . They form from the fertilization of gametes. They reproduce asexually. They have a structure called a sporangium that produces haploid spores by meiosis. Spores develop into the haploid generation. Then the cycle repeats.
SCiQ_train
Many students attend Miami University for its zoology program, hoping to become a doctor someday, but Joseph Frame has come for a different reason -- to become a vet. "Ever since I was a little boy, I've been interested in animals," Frame said, "but when I grow up, I realized that I didn't want to just take care of dog...
[ "It is located in the center of Cumberland", "It is connected to many zoos all over the US.", "It is a conservation center controlled by the government.", "It is aimed at protecting many kinds of animals." ]
B
MMLU_train
From what did the first proto-oncogenes arise?
[ "viral infections", "bacteria", "spores", "carcinogens" ]
A
SCiQ_train
Vitamins are complex chemical substances found in many foods. The human body needs them for health and growth. The body makes some vitamins, but usually in amounts too small to meet its needs. Other vitamins are not made in the body. These must be supplied. No one knows exactly how all vitamins work. Doctors do know th...
[ "The human body can produce enough vitamins for itself.", "Until now, scientists have discovered all the vitamins we need.", "People should take more vitamins.", "Each kind of vitamin plays a special role in human body." ]
D
MMLU_train
O(x) represents the least odd integer greater than x, whereas o(x) represents the greatest odd integer less than x. Likewise, E(x) represents the least even integer greater than x, whereas e(x) represents the greatest even integer less than x. According to these definitions, the value of O(8.3) + E(–8.7) + o(–7.3) + e(...
[ "0", "-2", "-1", "1" ]
B
O(8.3) + E(–8.7) + o(–7.3) + e(6.6) = 9 + (-8) + (-9) + 6 = -2 The answer is A.
AquaRat_train
Which organ has a thick mucus lining that protects the underlying tissue from the action of the digestive juices?
[ "stomach", "colon", "liver", "spleen" ]
A
functionality of pepsin. Second, the stomach has a thick mucus lining that protects the underlying tissue from the action of the digestive juices. When this mucus lining is ruptured, ulcers can form in the stomach. Ulcers are open wounds in or on an organ caused by bacteria (Helicobacter pylori) when the mucus lining i...
SCiQ_train
A car covers a distance of 200 metres in 1 minute whereas a bus covers a distance of 100kms in 50minutes. The ratio of their speeds is?
[ "ratio 1:10", "ratio 2:3", "ratio 9:13", "ratio 1:5" ]
A
Ratio of speeds = (200/60) 18/5 : 60*100/50 = 12:120 = 1:10 Answer is C
AquaRat_train
The product of a wave's wavelength and its frequency is what?
[ "trough", "speed", "velocity", "amplitude" ]
B
The product of a wave's wavelength (λ) and its frequency (ν), λν, is the speed of the wave. Thus, for electromagnetic radiation in a vacuum: c = 2.998 × 10 8 ms −1 = λν Wavelength and frequency are inversely proportional: As the wavelength increases, the frequency decreases. The inverse proportionality is illustrated i...
SCiQ_train
In the next Cricket World Cup T-20, Team T has decided to score 200 runs only through 4s and 6s. In how many ways can the Team T score these 200 runs?
[ "15", "18", "17", "16" ]
C
Team T can score a maximum of 50 fours and a minimum of 2 fours with an interval or spacing of 3 units to accommodate the 6's. So the number of fours scored forms an AP 2, 5, 8, ... 50 with a common difference of 3. Number of ways of scoring 200 only through 4's and 6's = (50 - 2)/3 + 1 = 17 Answer: D Alternate solutio...
AquaRat_train
WASHINGTON -- Patients with HIV, the virus that causes AIDS, often develop vitamin deficiencies . A new study has found that giving these patients a multivitamin with a mineral supplement helps to fight the disease and slows the disease's progression. Sub-Saharan Africa has always been the center of the AIDS. In ...
[ "Selenium and a placebo", "Vitamins alone", "Anti-retroviral treatment", "Minerals alone" ]
C
MMLU_train