GATE Practice Question and Answer

Q: Calculate the angle between the two hands of clock when the clock shows 4 : 20 p.m. ? 1689 0

  • 1
    5 degrees
    Correct
    Wrong
  • 2
    10 degrees
    Correct
    Wrong
  • 3
    15 degrees
    Correct
    Wrong
  • 4
    25 degrees
    Correct
    Wrong
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Answer : 2. "10 degrees"
Explanation :

Answer: B) 10 degrees Explanation: Since at 4 : 20 the minute hand will be at 4 and the angle between them will be same as the distance covered in degree by the hour hand in 20 minutes.   Required angle = distance of hour hand = speed × time = 12× 20 =10 degrees.

Q: How is my father's mother's only daughter-in-law's daughter's father related to me ? 1688 0

  • 1
    Son-in-law
    Correct
    Wrong
  • 2
    Uncle
    Correct
    Wrong
  • 3
    Son
    Correct
    Wrong
  • 4
    Father
    Correct
    Wrong
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Answer : 4. "Father"
Explanation :

Answer: D) Father Explanation: My fahter's mother's only daughter-in-law is my father's wife i.e. my mother. My mother's daughter is my sister. My sister's father is my father.

Q: 25 : 37 :: 49 : ? 1688 0

  • 1
    65
    Correct
    Wrong
  • 2
    69
    Correct
    Wrong
  • 3
    79
    Correct
    Wrong
  • 4
    81
    Correct
    Wrong
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Answer : 1. "65"
Explanation :

Answer: A) 65 Explanation: Here the given numbers are related in such a manner that, 52 = 255+12 + 1 = 37Similarly, 72 = 497+12 + 1 = 64 + 1 = 65   Hence, 25 : 37 :: 49 : 65.

Q: What type of lens is a magnifying glass? 1687 0

  • 1
    Diverging
    Correct
    Wrong
  • 2
    Spherical
    Correct
    Wrong
  • 3
    Converging
    Correct
    Wrong
  • 4
    Achromatic
    Correct
    Wrong
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Answer : 3. "Converging"
Explanation :

Answer: C) Converging Explanation: A magnifying glass is a convex lens that is used to produce a magnified image of an object. It is also called a hand lens in laboratory contexts.

Q: A man sell 35 waffers for Rs. 15 each and loses Rs. 40.4. If he sells 35 waffers for Rs. 18, how much does he loss or gain ? 1687 1

  • 1
    Rs. 64
    Correct
    Wrong
  • 2
    Rs. 52
    Correct
    Wrong
  • 3
    Rs. 72
    Correct
    Wrong
  • 4
    Rs. 55
    Correct
    Wrong
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Answer : 1. "Rs. 64"
Explanation :

Answer: A) Rs. 64 Explanation: Given Loss = Rs. 40.4We know loss = cost price - selling price 40.4 = CP - 35(15)=> CP = 40.4 + 525=> CP = Rs. 565.4Now the New selling price of waffer is Rs. 18=> SP = 35(18) = 630Now Gain = SP - CP = 630 -565.4 = Rs. 64.6.

Q: Joel travels the first 3 hours of his journey at 60 mph speed and the remaining 5 hours at 24 mph speed. What is the average speed of Joel's travel in kmph ? 1687 0

  • 1
    38 kmph
    Correct
    Wrong
  • 2
    40 kmph
    Correct
    Wrong
  • 3
    60 kmph
    Correct
    Wrong
  • 4
    54 kmph
    Correct
    Wrong
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Answer : 3. "60 kmph"
Explanation :

Answer: C) 60 kmph Explanation: Average speed = Total distance / Total time. Total distance traveled by Joel = Distance covered in the first 3 hours + Distance covered in the next 5 hours. Distance covered in the first 3 hours = 3 x 60 = 180 milesDistance covered in the next 5 hours = 5 x 24 = 120 miles Therefore, total distance traveled = 180 + 120 = 300 miles. Total time taken = 3 + 5 = 8 hours. Average speed = 300/8 = 37.5 mph. we know that 1 mile = 1.6 kms => 37.5 miles = 37.5 x 1.6 = 60 kms Average speed in Kmph = 60 kmph.

Q: The amount of water vapor in the air is 1687 0

  • 1
    Hot air
    Correct
    Wrong
  • 2
    Humidity
    Correct
    Wrong
  • 3
    Dew
    Correct
    Wrong
  • 4
    Foam
    Correct
    Wrong
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Answer : 2. "Humidity"
Explanation :

Answer: B) Humidity Explanation: The amount of water vapor ranges from a trace amount up to 4% of the mass of air. Water vapor exists as an invisible gas in the air.   The amount of water vapor in the air is called absolute humidity. The amount of water vapor in the air as compared with the amount of water that the air could hold is called relative humidity. The maximum amount of water vapor that can be in the air depends on the air temperature.

Q: An implied power is one that 1687 0

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Answer :
Explanation :

Implied powers are powers of U.S. government which have not been explicitly granted by the Constitution but that is implied by the necessary and proper clause to be delegated for the purpose of carrying out the enumerated powers.

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