IIT JEE Practice Question and Answer

Q: The calendar for the year 1988 is same as which upcoming year ? 1547 0

  • 1
    2012
    Correct
    Wrong
  • 2
    2014
    Correct
    Wrong
  • 3
    2016
    Correct
    Wrong
  • 4
    2010
    Correct
    Wrong
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Answer : 3. "2016"
Explanation :

Answer: C) 2016 Explanation: We already know that the calendar after a leap year repeats again after 28 years. Here year 1988 is a Leap year, then the same calendar will be in the year = 1988 + 28 = 2016.

Q: There are 11 True or False questions. How many ways can these be answered ? 1547 0

  • 1
    11!/2
    Correct
    Wrong
  • 2
    1024
    Correct
    Wrong
  • 3
    11!
    Correct
    Wrong
  • 4
    2048
    Correct
    Wrong
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Answer : 4. "2048"
Explanation :

Answer: D) 2048 Explanation: Given 11 questions of type True or False   Then, Each of these questions can be answered in 2 ways (True or false)   Therefore, no. of ways of answering 11 questions = 211 = 2048 ways.

Q: Which of the following is a renewable source of energy 1547 0

  • 1
    Natural gas
    Correct
    Wrong
  • 2
    Coal
    Correct
    Wrong
  • 3
    Wind
    Correct
    Wrong
  • 4
    Oil
    Correct
    Wrong
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Answer : 3. "Wind"
Explanation :

Answer: C) Wind Explanation: The energy sources that are constantly being replenished, such as sunlight, wind, and water. This means that we can use them as much as we want, and we do not have to worry about them running out. Additionally, renewable energy sources are usually much more environmentally friendly than fossil fuels. Overall, they release very few chemicals, like carbon dioxide, that can harm the environment. Most of this energy comes from fossil fuels, such as coal, oil, and natural gas. These are nonrenewable energy sources, which means that if we use them all up, we can never get more during our lifetime. Fossil fuels also contribute greatly to global climate change by releasing carbon dioxide into the air when they are burned.

Q: The main result of aerobic respiration is the 1547 0

  • 1
    production of lactic acid as an end product
    Correct
    Wrong
  • 2
    production of ATP from the breakdown of glucose
    Correct
    Wrong
  • 3
    conversion of radiant energy into chemical energy
    Correct
    Wrong
  • 4
    storage of energy in a polysaccharide
    Correct
    Wrong
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Answer : 2. "production of ATP from the breakdown of glucose"
Explanation :

Answer: B) production of ATP from the breakdown of glucose Explanation: The three steps within the aerobic respiration process are glycolysis, the citric acid cycle, and oxidative phosphorylation. Photosynthesis builds glucose, and what was built in photosynthesis is broken down during aerobic respiration.   Hence, production of ATP from the breakdown of glucose is the main result of aerobic respiration.

Q: In what time a 360 m. long train moving at the speed of 44 km/hr will cross a 140 m. long bridge ? 1546 0

  • 1
    36 sec
    Correct
    Wrong
  • 2
    39 sec
    Correct
    Wrong
  • 3
    41 sec
    Correct
    Wrong
  • 4
    43 sec
    Correct
    Wrong
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Answer : 3. "41 sec"
Explanation :

Answer: C) 41 sec Explanation: Speed = 44 kmph x 5/18 = 110/9 m/s We know that, Time = distance/speed Time = (360 + 140) / (110/9) = 500 x 9/110 = 41 sec.

Q: In which world cup cricket final, Australia beat England? 1546 0

  • 1
    1987, Kolkata - India
    Correct
    Wrong
  • 2
    1996, Lahore - Pakistan
    Correct
    Wrong
  • 3
    1983, Lord's - England
    Correct
    Wrong
  • 4
    1992, Melbourne - Australia
    Correct
    Wrong
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Answer : 1. "1987, Kolkata - India"
Explanation :

Answer: A) 1987, Kolkata - India Explanation: Australia won the 1987/88 Reliance World Cup against England held in Kolkata, India.

Q: Antonym of:: Amicable 1546 0

  • 1
    Hostile
    Correct
    Wrong
  • 2
    Loveable
    Correct
    Wrong
  • 3
    Friendly
    Correct
    Wrong
  • 4
    Peaceful
    Correct
    Wrong
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Answer : 1. "Hostile"
Explanation :

Answer: A) Hostile Explanation: Amicable means Friendly or in Loveable, peaceful sense. Then Antonyms for Amicable are Opposite of Friendly => Unfriendly, Hostile, Unpeaceful, etc...

Q: A rectangular lawn of dimensions 80 m x 60 m has two roads each 10 m wide running in the middle of the lawn, one parallel to the length and the other parallel to the breadth. What is the cost of traveling the two roads at Rs.3 per sq m ? 1546 0

  • 1
    Rs. 3600
    Correct
    Wrong
  • 2
    Rs. 3800
    Correct
    Wrong
  • 3
    Rs. 3900
    Correct
    Wrong
  • 4
    Rs. 3700
    Correct
    Wrong
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Answer : 3. "Rs. 3900"
Explanation :

Answer: C) Rs. 3900 Explanation: Area = (l + b – d) d = (80 + 60 – 10)10 => 1300 sq.mts => 1300 x 3 = Rs.3900

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