IIT JEE Practice Question and Answer

Q: In India, Salt Lake City is located in 1892 0

  • 1
    West Bangal
    Correct
    Wrong
  • 2
    Rajastan
    Correct
    Wrong
  • 3
    Gujarat
    Correct
    Wrong
  • 4
    Delhi
    Correct
    Wrong
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Answer : 1. "West Bangal"
Explanation :

Answer: A) West Bangal Explanation: BidhanNagar in Kolkata, West Bangal is popularly known as Salt Lake City.

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Answer :
Explanation :

PONDICHERRY is the Indian City with 11 Letters.   Fruit Name : CHERRY Soap Name : RIN Bird Name : HEN Organ : CHIN Used by Student : PEN

Q: A mixture contains 25% milk and rest water. What percent of this mixture must taken out and replaced with milk so that in mixture milk and water may become equal. 1716 0

  • 1
    31.8%
    Correct
    Wrong
  • 2
    31%
    Correct
    Wrong
  • 3
    33.33%
    Correct
    Wrong
  • 4
    29.85%
    Correct
    Wrong
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Answer : 3. "33.33%"
Explanation :

Answer: C) 33.33% Explanation: Now, take percentage of milk and applying mixture rule 25          100        50 50            25  = 2 : 1   Hence required answer =  1/3 or 33.33%

Q: Who is the new Chairman of ISRO in 2018? 1081 0

  • 1
    K. Sivan
    Correct
    Wrong
  • 2
    S. Manish Arya
    Correct
    Wrong
  • 3
    A.S. Kiran Kumar
    Correct
    Wrong
  • 4
    Bibeth Roy
    Correct
    Wrong
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Answer : 1. "K. Sivan"
Explanation :

Answer: A) K. Sivan Explanation: Rocket specialist K. Sivan has been appointed as new Chairman of India's space agency ISRO for a three-year term. He replaces current ISRO Chairman A.S. Kiran Kumar, whose term ends January 14, 2018.   He is currently Director of Vikram Sarabhai Space Centre in Trivandrum.   His expertise gave ISRO ability to send 104 satellites in a single mission.

Q: Friction can be reduced by changing from 1822 0

  • 1
    Static to Dynamic
    Correct
    Wrong
  • 2
    Rolling to Sliding
    Correct
    Wrong
  • 3
    Dynamic to Static
    Correct
    Wrong
  • 4
    Sliding to Rolling
    Correct
    Wrong
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Answer : 4. "Sliding to Rolling"
Explanation :

Answer: D) Sliding to Rolling Explanation: Any object rolls when there is no friction. So, Sliding to Rolling is correct.

Q: Thread is to String as Cask is to 4250 0

  • 1
    Barrel
    Correct
    Wrong
  • 2
    Disc
    Correct
    Wrong
  • 3
    Wallet
    Correct
    Wrong
  • 4
    Box
    Correct
    Wrong
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Answer : 1. "Barrel"
Explanation :

Answer: A) Barrel Explanation: Here Thread and String are Synonyms of each other. Then the answer will be the synonym of Cask.  Cask is nothing but a large barrel-like container used for storing liquids, typically alcoholic drinks.  Ex : Drum, Vessel, Tank, Barrel, Hogshead, Firkin,...   Here from the options Barrel is the only synonym of Cask.   Thus,  Thread : String :: Cask : Barrel

Q: Only For Geniuses Solve this MathPuzzle if you can? 1243 0

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Answer :
Explanation :

Let the required number be 'X' Condition 1 :   XX = 2X  => 2X2 = X => X = 12   Condition 2 : X × X = X2=> X = 12   Therefore, 12 is the number which becomes double when it is divided by itself and becomes half when it is multiplied by itself.

Q: Organisms need Nutrients in order to 1642 0

  • 1
    Breaking down food
    Correct
    Wrong
  • 2
    Utilize chemical compounds
    Correct
    Wrong
  • 3
    recycling
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "Breaking down food"
Explanation :

Answer: A) Breaking down food Explanation: Nutrients are necessary for break down the food and supply energy to the organisms and to carry out essential life functions. Important nutrients are Hydrogen, Carbon and Oxygen.   Some more important nutrients for plants are : Potassium, Sulphur, Nitrogen, Phosphorous, Calcium and Magnesium.

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