GATE Practice Question and Answer

Q: Which of the following sports is most popular worldwide? 2590 0

  • 1
    Football
    Correct
    Wrong
  • 2
    Hockey
    Correct
    Wrong
  • 3
    Cricket
    Correct
    Wrong
  • 4
    Tennis
    Correct
    Wrong
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Answer : 1. "Football"
Explanation :

Answer: A) Football Explanation: Top five most popular games world wide are :   Game name              -      Estimated  fans     -    Popular Regions   1. Soccer / Football      -      3.5 Billion    -     Europe, Africa, Asia, America 2. Cricket                    -      2.5 Billion     -    Asia, Australia, UK 3. Basketball               -      2.2 Billion     -    US, Canada, China and Philippines 4. Field Hockey           -       2 Billion       -     Europe, Africa, Asia, Australia 5. Tennis                    -       1 Billion       -     Europe, Americas, and Asia.

Q: Find out the wrong number in the following series ? 2880, 480, 92, 24, 8, 4, 4 2589 0

  • 1
    480
    Correct
    Wrong
  • 2
    92
    Correct
    Wrong
  • 3
    24
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 2. "92"
Explanation :

Answer: B) 92 Explanation: The given series of numbers follow the rule that, 2880/6 = 480480/5   = 9696/4     = 2424/3     = 88/2       = 44/1       = 4 But 92 is not in the rule. It is the wrong number in the given series.

Q: Which of the following has the highest frequency? 2589 0

  • 1
    Cosmic rays
    Correct
    Wrong
  • 2
    X-rays
    Correct
    Wrong
  • 3
    Radio waves
    Correct
    Wrong
  • 4
    Microwaves
    Correct
    Wrong
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Answer : 1. "Cosmic rays"
Explanation :

Answer: A) Cosmic rays Explanation:

Q: One type of liquid contains 25 % of benzene, the other contains 30% of benzene. A can is filled with 6 parts of the first liquid and 4 parts of the second liquid. Find the percentage of benzene in the new mixture. 2586 0

  • 1
    27 %
    Correct
    Wrong
  • 2
    26 %
    Correct
    Wrong
  • 3
    29 %
    Correct
    Wrong
  • 4
    21 %
    Correct
    Wrong
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Answer : 1. "27 %"
Explanation :

Answer: A) 27 % Explanation: Let the percentage of benzene = X(30 - X)/(X- 25) = 6/4 = 3/2 => 5X = 135  X = 27 So, required percentage of benzene = 27 %

Q: In what ratio must wheat at Rs. 3.20/kg be mixed with wheat at Rs. 2.90/kg so that the mixture be worth Rs. 3/kg? 2584 0

  • 1
    1:2
    Correct
    Wrong
  • 2
    3:2
    Correct
    Wrong
  • 3
    2:1
    Correct
    Wrong
  • 4
    2:3
    Correct
    Wrong
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Answer : 3. "2:1"
Explanation :

Answer: C) 2:1 Explanation: Given rate of wheat at cheap = Rs. 2.90/kg Rate of wheat at cost = Rs. 3.20/kg Mixture rate = Rs. 3/kg Ratio of mixture =            2.90                              3.20                               3 (3.20 - 3 = 0.20)            (3 - 2.90 = 0.10)   0.20 : 0.10 = 2:1   Hence, wheat at Rs. 3.20/kg be mixed with wheat at Rs. 2.90/kg in the ratio of 2:1, so that the mixture be worth Rs. 3/kg.

Q: What is needed for steering control on a PWC? 2584 0

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Answer :
Explanation :

PWC refers to Personal Water Crafts. To control steering on a PWC, the most needed requirement is to have power in which will allows the one using it to control the engine for it to stop or for it to move. Without power, the person using it could be out of balance or fail to start the engine. This is the basic requirement because even though it is shut off or the engine is off, the PWC is still on and it could still move without proper knowledge of the engine.

Q: A Step-Up Transformer Increases 2584 0

  • 1
    Power
    Correct
    Wrong
  • 2
    Current
    Correct
    Wrong
  • 3
    Frequency
    Correct
    Wrong
  • 4
    Voltage
    Correct
    Wrong
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Answer : 4. "Voltage"
Explanation :

Answer: D) Voltage Explanation: A transformer that increases voltage from primary to secondary (more secondary winding turns than primary winding turns) is called a Step-Up Transformer. Conversely, a transformer designed to do just the opposite is called a Step-Down Transformer.

Q: Solve the Riddle? 2580 0

  • 1
    79 hrs
    Correct
    Wrong
  • 2
    72 hrs
    Correct
    Wrong
  • 3
    52 hrs
    Correct
    Wrong
  • 4
    18 hrs
    Correct
    Wrong
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Answer : 4. "18 hrs"
Explanation :

Answer: D) 18 hrs Explanation: From the given data, 18 snakes can eat 18 bananas in 18 hrs. => 1 snake can eat 1 banana in 18 hrs => 79 snakes can eat 79 bananas in 18 hrs.   Hence, 18 hrs.

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