GATE Practice Question and Answer

Q: What has 3 feet but cannot walk? 2052 0

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Answer :
Explanation :

We know that 1 yard = 3 feet.    A yardstick which is used for measurement has 3 feet long but it cannot walk.

Q: Who has become world's no.1 Junior Badminton player in 2017 ? 2052 0

  • 1
    Chia Hao Lee
    Correct
    Wrong
  • 2
    Lakshya Sen
    Correct
    Wrong
  • 3
    Chirag Sen
    Correct
    Wrong
  • 4
    Karthikey Gulshan Kumar
    Correct
    Wrong
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Answer : 2. "Lakshya Sen"
Explanation :

Answer: B) Lakshya Sen Explanation: India's Lakshya Sen has become the World No 1 Junior Badminton player. He achieved the distinction in the latest rankings of the Badminton World Federation (BWF). Fifteen-year-old is the first shuttler from Uttarakhand to attain the numero uno spot at the international level. Lakshya, who is considered as the shining future star of Indian badminton, moved ahead of Chia Hao Lee of the Chinese Taipei, to attain the top spot. According to BWF current rankings, Lakshya has 16,903 points in eight tournaments he has played in the season. Chia Hao, who is at the second spot, has 16,091 points.

Q: 5 + 2 x 10/2 = ? 2052 0

  • 1
    15
    Correct
    Wrong
  • 2
    35
    Correct
    Wrong
  • 3
    10
    Correct
    Wrong
  • 4
    20
    Correct
    Wrong
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Answer : 1. "15"
Explanation :

Answer: A) 15 Explanation: Using BODMAS Rule, First solve division, mutiplication and Addition So here 10/2 = 5 Then 2 x 5 =  10 Now, 5 + 10 = 15.   Hence, 5 + 2 x 10/2 = 15.

Q: If the HCF of 210 and 55 is expressible in the form of 210 x 5 + 55P, then value of P = ? 2051 0

  • 1
    -23
    Correct
    Wrong
  • 2
    27
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    -19
    Correct
    Wrong
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Answer : 4. "-19"
Explanation :

Answer: D) -19 Explanation: HCF of 210 and 55 is 5 Now, 210x5 + 55P = 5 => 1050 + 55P = 5 => 55P = -1045 => P = -1045/55 => P = -19.

Q: Select a suitable figure from the four alternatives that would complete the figure matrix.             (1)   (2)   (3)   (4) 2051 0

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

Answer: D) 2 Explanation: One line is increasing in each subsequent figue.

Q: Q = mc∆T refers to 2051 0

  • 1
    Enthalpy formula
    Correct
    Wrong
  • 2
    Heat Transfer formula
    Correct
    Wrong
  • 3
    Specific Heat formula
    Correct
    Wrong
  • 4
    Heat of Vaporization
    Correct
    Wrong
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Answer : 3. "Specific Heat formula"
Explanation :

Answer: C) Specific Heat formula Explanation: Q = mc∆T refers to Specific Heat formula.   When heat energy is added to a substance, the temperature will change by a certain amount. The relationship between heat energy and temperature is different for every material, and the specific heat is a value that describes how they relate.   Q = mc∆T   Q = heat energy (Joules, J) m = mass of a substance (kg) c = specific heat (units J/kg∙K) ∆T = change in temperature (Kelvins, K)

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 ? 2050 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: Find the total numbers greater than 4000 that can be formed with digits 2, 3, 4, 5, 6 no digit being repeated in any number ? 2048 0

  • 1
    120
    Correct
    Wrong
  • 2
    256
    Correct
    Wrong
  • 3
    192
    Correct
    Wrong
  • 4
    244
    Correct
    Wrong
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Answer : 3. "192"
Explanation :

Answer: C) 192 Explanation: We are having with digits 2, 3, 4, 5 & 6 and numbers greater than 4000 are to be formed, no digit is repeated.   The number can be 4 digited but greater than 4000 or 5 digited.   Number of 4 digited numbers greater than 4000 are4 or 5 or 6 can occupy thousand place => 3 x P34 = 3 x 24 = 72.    5 digited numbers = P55 = 5! = 120  So the total numbers greater than 4000 = 72 + 120 = 192

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