IIT JEE Practice Question and Answer

Q: Which process removes carbon dioxide from the atmosphere? 1206 0

  • 1
    Combustion
    Correct
    Wrong
  • 2
    Photosynthesis
    Correct
    Wrong
  • 3
    Respiration
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 2. "Photosynthesis"
Explanation :

Answer: B) Photosynthesis Explanation: Photosynthesis process removes carbon dioxide from the atmosphere. Green plants remove carbon dioxide from the atmosphere by photosynthesis.  The level of carbon dioxide in the atmosphere is maintained by several processes, including photosynthesis, respiration and combustion.

Q: What does the legislative branch do? 896 0

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Answer :
Explanation :

In federal and state government, the legislative branch's primary function is to make laws.

Q: What event prompted the formation of the first continental congress? 1548 0

  • 1
    The Boston Massacre
    Correct
    Wrong
  • 2
    The battles of Lexington and Concord
    Correct
    Wrong
  • 3
    The Boston Tea Party
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "The Boston Tea Party"
Explanation :

Answer: C) The Boston Tea Party Explanation: Before the shots were fired at Lexington and Concord, the colonies made an attempt to settle the concerns and frustrations raised with the Intolerable Acts through debate and discussion. Thus, the First Continental Congress was called to order on September 5th, 1774. The First Continental Congress was a meeting of delegates from twelve of the Thirteen Colonies early in the American Revolution. It was called in response to the Intolerable Acts passed by the British Parliament, which the British referred to as the Coercive Acts, with which the British intended to punish Massachusetts for the Boston Tea Party.

Q: A low trough is indicative of 1043 0

  • 1
    the start of a depression
    Correct
    Wrong
  • 2
    the end of a recession
    Correct
    Wrong
  • 3
    a serious depression
    Correct
    Wrong
  • 4
    a growing recession
    Correct
    Wrong
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Answer : 4. "a growing recession"
Explanation :

Answer: D) a growing recession Explanation: A low trough is indicative of "a growing recession" since a trough indicates a general change in the business cycle, which can have varying degrees of importance. A recession could be an important decline in economic activity that goes on for quite many months.

Q: Which has the lowest albedo? 1482 0

  • 1
    dark surfaces
    Correct
    Wrong
  • 2
    light surfaces
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "dark surfaces"
Explanation :

Answer: A) dark surfaces Explanation: Albedo refers to a material's ability to reflect sunlight. Since 30% of the sun's energy is reflected by the entire earth, the earth has an average albedo of 0.30. Generally, dark surfaces have a low albedo and light surfaces have a high albedo.

Q: The age of Sohail, Afzal and Bilal are 17,16 and 12 respectively. If the age of Aslam also included the average of the ages is increased by 5. What is the age of Aslam? 2899 0

  • 1
    32
    Correct
    Wrong
  • 2
    33
    Correct
    Wrong
  • 3
    34
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
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Answer : 4. "35"
Explanation :

Answer: D) 35 Explanation: Given S = 17 yrs A = 16 yrs B = 12 yrs Average = 17 + 16 + 12/3 = 15 yrs Given if Aslam added to them, their average increases by 5 => Average of 4 members = 20 Let the age of Aslam be 'x' Then,  17 + 16 + 12 + x /4 = 20 => x = 80 - 45 => x = 35.    Hence, the age of Aslam is 35 yrs.

Q: Anti lock braking systems can significantly 14976 0

  • 1
    Improve your breaking stability
    Correct
    Wrong
  • 2
    Impede your break instability
    Correct
    Wrong
  • 3
    Impede your breaking power
    Correct
    Wrong
  • 4
    Improve your breaking power
    Correct
    Wrong
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Answer : 1. "Improve your breaking stability"
Explanation :

Answer: A) Improve your breaking stability Explanation: An anti-lock braking system (ABS) is a safety anti-skid braking system used on aircraft and on land vehicles , such as cars, motorcycles, trucks and buses.   ABS is only on the front wheels and it can improve your ability and the stability of your car by keeping the front wheels from locking under severe braking it will allow the wheels to continue to roll so the car can stop straight and stop as safe and as soon as possible

Q: What bet can never be won? 6111 0

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Answer :
Explanation :

ALPHABET is the bet can never be won.

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