IIT JEE Practice Question and Answer

Q: Find the odd man out of the following number series? 22, 26, 42, 78, 142, 244 2257 0

  • 1
    244
    Correct
    Wrong
  • 2
    142
    Correct
    Wrong
  • 3
    78
    Correct
    Wrong
  • 4
    42
    Correct
    Wrong
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Answer : 1. "244"
Explanation :

Answer: A) 244 Explanation: The given number series 22, 26, 42, 78, 142, 244 follows a pattern that, 2222 + 22 = 22 + 4 = 2626 + 42 = 26 + 16 = 4242 + 62 = 42 + 36 = 7878 + 82 = 78 + 64 = 142142 + 102 = 142 + 100 = 242    Hence, the odd one in the given number series is 244.

Q: The primary Economic function of the Financial system is to 2256 0

  • 1
    Providing experts advice to investors and savers
    Correct
    Wrong
  • 2
    Match one person's savings with another person's investment
    Correct
    Wrong
  • 3
    Keeping interest rates low
    Correct
    Wrong
  • 4
    Match one person's consumpion expenditure with another person's capital expenditure
    Correct
    Wrong
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Answer : 2. "Match one person's savings with another person's investment"
Explanation :

Answer: B) Match one person's savings with another person's investment Explanation: The primary Economic function of the Financial system is to match one person's savings with another person's investment. As a key component of the financial system, banks allocate funds from savers to borrowers in an efficient manner. They provide specialized financial services, which reduce the cost of obtaining information about both savings and borrowing opportunities. These financial services help to make the overall economy more efficient.

Q: Microphone : Loud :: Microscope : ? 2256 0

  • 1
    Investigate
    Correct
    Wrong
  • 2
    Magnify
    Correct
    Wrong
  • 3
    Examine
    Correct
    Wrong
  • 4
    Elongate
    Correct
    Wrong
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Answer : 2. "Magnify"
Explanation :

Answer: B) Magnify Explanation: As Microphone makes sound louder similarly Microscope makes the object magnified.   Hence, Microphone : Loud :: Microscope : Magnify.

Q: A woman’s voice is shriller than a man’s voice due to 2253 0

  • 1
    weak vocal chords
    Correct
    Wrong
  • 2
    lower frequency
    Correct
    Wrong
  • 3
    higher frequency
    Correct
    Wrong
  • 4
    higher amplitude
    Correct
    Wrong
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Answer : 3. "higher frequency"
Explanation :

Answer: C) higher frequency Explanation: As the frequency of sound is higher, women have shriller voices than men. The shrillness or pitch of a sound is determined by its frequency. The higher the pitch shriller the voice. As the sounds produced by vocal cords of women are higher than men so women have shriller voices than men. Because their vocal cord is of smaller size. As their vocal cord is more stretched than men's.

Q: The production possibilities curve illustrates the basic principle that 2252 0

  • 1
    if all the resources of an economy are in use, more of one good can be produced only if less of another good is produced.
    Correct
    Wrong
  • 2
    the production of more of any one good will in time require smaller and smaller sacrifices of other goods.
    Correct
    Wrong
  • 3
    an economy will automatically obtain full employment of its resources.
    Correct
    Wrong
  • 4
    an economy's capacity to produce increases in proportion to its population size.
    Correct
    Wrong
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Answer : 1. "if all the resources of an economy are in use, more of one good can be produced only if less of another good is produced."
Explanation :

Answer: A) if all the resources of an economy are in use, more of one good can be produced only if less of another good is produced. Explanation: A graph that describes the maximum amount of one good that can be produced for every possible level of production of the other good is nothing but a production possibilities curve.

Q: Which of these is NOT a lipid? 2251 0

  • 1
    Wax
    Correct
    Wrong
  • 2
    Cholesterol
    Correct
    Wrong
  • 3
    RNA
    Correct
    Wrong
  • 4
    Phospholipid
    Correct
    Wrong
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Answer : 3. "RNA"
Explanation :

Answer: C) RNA Explanation: RNA is not a lipid among the given options.   A lipid is a substance of biological origin that is soluble in nonpolar solvents. It comprises a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, and phospholipids.

Q: Which of the following Valleys is known as "Paradise of Earth" ? 2251 0

  • 1
    Kullu Valley
    Correct
    Wrong
  • 2
    Doon Valley
    Correct
    Wrong
  • 3
    Kangra Valley
    Correct
    Wrong
  • 4
    Kashmir Valley
    Correct
    Wrong
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Answer : 4. "Kashmir Valley"
Explanation :

Answer: D) Kashmir Valley Explanation:

Q: Fill in the blank with an appropriate word from the following options. Usually the room tariff in this hotel is higher. At present, it is low because of the------- season. 2251 0

  • 1
    Peak
    Correct
    Wrong
  • 2
    Off
    Correct
    Wrong
  • 3
    Down
    Correct
    Wrong
  • 4
    Slow
    Correct
    Wrong
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Answer : 2. "Off"
Explanation :

Answer: B) Off Explanation: Season can be either at peak or off.Presently it is low, that is because of OFF season.

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