IIT JEE Practice Question and Answer

Q: The first synthetic fibre made by man was ____ ? 4756 1

  • 1
    Rayon
    Correct
    Wrong
  • 2
    Terycott
    Correct
    Wrong
  • 3
    Polyester
    Correct
    Wrong
  • 4
    Nylon
    Correct
    Wrong
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Answer : 4. "Nylon"
Explanation :

Answer: D) Nylon Explanation:

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Answer : 2. "26.166 minutes"
Explanation :

Answer: B) 26.166 minutes Explanation: Upto first 5 minutes I, J and K will fill => 5[(1/20)+(1/30)+(1/40)] = 65/120 For next 6 minutes, J and K will fill => 6[(1/30)+(1/40)] = 42/120 So tank filled upto first 11 minutes = (65/120) + (42/120) = 107/120 So remaining tank = 13/120 Now at the moment filling with C and leakage @ 1/60 per minute= (1/40) - (1/70) = 3/280.So time taken to fill remaining 13/120 tank =(13/120) /(3/280) = 91/6 minutes   Hence total time taken to completely fill the tank = 5 + 6 + 91/6 = 26.16 minutes.

Q: Which is true of the 1912 presidential election? 4753 0

  • 1
    Because all three major candidates were Progressive, the Socialist won
    Correct
    Wrong
  • 2
    Because all three major candidates were Progressive, Progressive votes were split
    Correct
    Wrong
  • 3
    Although none of the candidates was Progressive, the Progressives decided the election
    Correct
    Wrong
  • 4
    Although none of the candidates was Progressive, Progressive ideas were important
    Correct
    Wrong
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Answer : 2. "Because all three major candidates were Progressive, Progressive votes were split"
Explanation :

Answer: B) Because all three major candidates were Progressive, Progressive votes were split Explanation: Because all three major candidates were Progressive, Progressive votes were split" is the one among the following that is true of the 1912 presidential election. The correct option among all the options that are given in the question is the option "B".

Q: A hater of knowledge and learning is 4753 0

  • 1
    Philologist
    Correct
    Wrong
  • 2
    Misologist
    Correct
    Wrong
  • 3
    Bibliophile
    Correct
    Wrong
  • 4
    Misogynist
    Correct
    Wrong
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Answer : 2. "Misologist"
Explanation :

Answer: B) Misologist Explanation: The one word substitution for a hater of knowledge and learning is Misologist.

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Answer : 2. "8"
Explanation :

Answer: B) 8 Explanation:     AmitBharatNo.of Days4540Efficiency2.22Percent(=145)2.5 Percent(=140)   Amit did the work in 56 days = 56×145×2=2845    Therefore, Rest work 17/45 was done by Amit and Bharath = 174517360 = 8 days       ( since Amit and Bharath  do the work in one day = 145+140=17360)

Q: In India, planned economy is based on 4730 0

  • 1
    Mixed Economy System
    Correct
    Wrong
  • 2
    Capitalist System
    Correct
    Wrong
  • 3
    Gandhian System
    Correct
    Wrong
  • 4
    Socialist System
    Correct
    Wrong
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Answer : 4. "Socialist System"
Explanation :

Answer: D) Socialist System Explanation:

Q: Which one of the following vitamins is known as the anti sterile factor  ? 4724 0

  • 1
    Ascorbic acid
    Correct
    Wrong
  • 2
    Riboflavin
    Correct
    Wrong
  • 3
    Niacin
    Correct
    Wrong
  • 4
    Retinol
    Correct
    Wrong
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Answer : 2. "Riboflavin"
Explanation :

Answer: B) Riboflavin Explanation:

Q: ऑनलाइन कार्यात्मक शिक्षण पोर्टलों का उपयोग के माध्यम से किया जाता है 4710 0

  • 1
    वेब पोर्टल
    Correct
    Wrong
  • 2
    इंटरएक्टिव मल्टीमीडिया निर्देश
    Correct
    Wrong
  • 3
    प्रशिक्षक सुविधा नए उपकरण
    Correct
    Wrong
  • 4
    उपरोक्त सभी
    Correct
    Wrong
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Answer : 1. "वेब पोर्टल"
Explanation :

Answer: A) वेब पोर्टल व्याख्या: ऑनलाइन कार्यात्मक शिक्षण पोर्टलों को वेब पोर्टल के माध्यम से एक्सेस किया जाता है।

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