IIT JEE Practice Question and Answer

Q: Vikram Sarabhai Space Centre is located at 1818 0

  • 1
    Thiruvananthapuram
    Correct
    Wrong
  • 2
    Pune
    Correct
    Wrong
  • 3
    Sriharikota
    Correct
    Wrong
  • 4
    Ahmedabad
    Correct
    Wrong
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Answer : 1. "Thiruvananthapuram"
Explanation :

Answer: A) Thiruvananthapuram Explanation: Vikram Sarabhai Space Centre is located at Thiruvananthapuram, Kerala.   This is the lead centre of ISRO responsible for the design and development of launch vehicle technology focusing on rocket and space vehicles for India's satellite programme.

Q: Atmospheric pressure exerted on earth is due to 1818 0

  • 1
    gravitational pull
    Correct
    Wrong
  • 2
    rotation of earth
    Correct
    Wrong
  • 3
    revolution of earth
    Correct
    Wrong
  • 4
    uneven heating of earth
    Correct
    Wrong
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Answer : 1. "gravitational pull"
Explanation :

Answer: A) gravitational pull Explanation: The atmospheric pressure at the surface of the Earth is due to gravitational pull of the earth and is about 14.7 psi.   That means that the weight of a column of air which has a cross section of 1 square inch and which stretches from the surface of the Earth to space is 14.7 pounds.

Q: Which colony was farthest north? 1818 0

  • 1
    Massachusetts
    Correct
    Wrong
  • 2
    Virginia
    Correct
    Wrong
  • 3
    Georgia
    Correct
    Wrong
  • 4
    New Hampshire
    Correct
    Wrong
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Answer : 1. "Massachusetts"
Explanation :

Answer: A) Massachusetts Explanation: There are 13 colonies and are ruled by England.   The farthest north colony - Massachusetts The farthest south colony - Georgia The oldest colony - Virginia The colony between the 2 parts of Massachusetts - New Hampshire

Q: Which of the following has become the first country to grant citizenship to a Robot ? 1818 0

  • 1
    Saudi Arabia
    Correct
    Wrong
  • 2
    New Zealand
    Correct
    Wrong
  • 3
    China
    Correct
    Wrong
  • 4
    Japan
    Correct
    Wrong
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Answer : 1. "Saudi Arabia"
Explanation :

Answer: A) Saudi Arabia Explanation:

Q: Which of the following does not occur during Mitosis? 1817 0

  • 1
    spindle formation
    Correct
    Wrong
  • 2
    condensation of the chromosomes
    Correct
    Wrong
  • 3
    breakdown of the nuclear membrane
    Correct
    Wrong
  • 4
    replication of the DNA
    Correct
    Wrong
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Answer : 4. "replication of the DNA"
Explanation :

Answer: D) replication of the DNA Explanation: Replication of the DNA does not occur during Mitosis.

Q: Which country has successfully launched the world's smallest rocket to carry tiny satellite into orbit? 1817 0

  • 1
    India
    Correct
    Wrong
  • 2
    Russia
    Correct
    Wrong
  • 3
    Japan
    Correct
    Wrong
  • 4
    Australia
    Correct
    Wrong
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Answer : 3. "Japan"
Explanation :

Answer: C) Japan Explanation: Japan's - Japan Aerospace Exploration Agency (JAXA) has successfully launched the world's smallest rocket with the ability to put a tiny satellite into orbit. Rocket -  SS-520 which was pnce failed in 2017 lifted off from the Space Center carrying a microsatellite TRICOM-1R, a three-unit CubeSat weighing about 3 kilograms. The CubeSat will now be used to collect images of the Earth's surface via multiple cameras.

Q: Second & fourth Saturdays and every Sunday is a holiday. How many working days will be there in a month of 31 days beginning on a Friday ? 1817 0

  • 1
    24
    Correct
    Wrong
  • 2
    23
    Correct
    Wrong
  • 3
    22
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 1. "24"
Explanation :

Answer: A) 24 Explanation: Given that the month begins on a Friday and has 31 days   Sundays = 3rd, 10th, 17th, 24th, 31st=> Total Sundays = 5   Every second & fourth Saturday is holiday. 2nd & 4th Saturday in every month = 2   Total days in the month = 31   Total working days = 31 - (5 + 2) = 24 days.

Q: An amount doubles itself in 15 years. what is the rate of interest ? 1817 0

  • 1
    7.85 %
    Correct
    Wrong
  • 2
    9.41%
    Correct
    Wrong
  • 3
    6.66 %
    Correct
    Wrong
  • 4
    4.21 %
    Correct
    Wrong
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Answer : 3. "6.66 %"
Explanation :

Answer: C) 6.66 % Explanation: Let the principle be Rs. PAs the amount double itself the interest is Rs. P tooSo P = P x r x 15/100=> r = 100/15 = 20/3 % = 6.66 %.

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