GATE Practice Question and Answer

Q: Which of the following elements is a metal? 1713 0

  • 1
    Se
    Correct
    Wrong
  • 2
    I
    Correct
    Wrong
  • 3
    Zn
    Correct
    Wrong
  • 4
    S
    Correct
    Wrong
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Answer : 3. "Zn"
Explanation :

Answer: C) Zn Explanation: In chemistry, a metal is an element that readily forms positive ions (cations) and has metallic bonds. Metals are opaque, lustrous elements that are good conductors of heat and electricity. Most metals are malleable and ductile and are, in general, denser than the other elemental substances.   Examples of metals are aluminium, copper, iron, tin, gold, lead, silver, titanium, uranium, and zinc.   Here Se - Selenium is an element but is not a metal, S - Sulphur is not a metal and I - Iodine is also not a metal.   Hence, Zn - Zinc is the only metal in the given options.

Q: Second and third class levers are differentiated by 1713 0

  • 1
    the location of the load
    Correct
    Wrong
  • 2
    the location of the fulcrum
    Correct
    Wrong
  • 3
    the presence of multiple loads
    Correct
    Wrong
  • 4
    the type of fulcrum present
    Correct
    Wrong
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Answer : 1. "the location of the load"
Explanation :

Answer: A) the location of the load Explanation:

Q: The sum of one-half, one-third and one-fourth of a number exceeds the number by 22. The number is 1712 0

  • 1
    264
    Correct
    Wrong
  • 2
    284
    Correct
    Wrong
  • 3
    215
    Correct
    Wrong
  • 4
    302
    Correct
    Wrong
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Answer : 1. "264"
Explanation :

Answer: A) 264 Explanation: Let the number be 'x'. Then, from given data x/2 + x/3 + x/4 = x+2213x/12 = x+22x = 264

Q: Select a figure from the four alternatives that would complete the Figure Matrix.                (1)   (2)   (3)   (4) 1711 0

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

Answer: A) 4 Explanation: Similar small figures are increasing by one in each of the bigger figure.

Q: A jeep travels a certain distance taking 6 hrs in forward journey, during the return journey increased speed 12km/hr takes the times 4 hrs. What is the distance travelled by the jeep is ? 1711 0

  • 1
    244 km
    Correct
    Wrong
  • 2
    144 km
    Correct
    Wrong
  • 3
    444 km
    Correct
    Wrong
  • 4
    344 km
    Correct
    Wrong
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Answer : 2. "144 km"
Explanation :

Answer: B) 144 km Explanation: Given a jeep travels a certain distance taking 6 hrs in forward journeyDuring the return journey, it takes 4 hrs with an increased speed 12 km/hrLet 'x' be the distance.Now, speed is given by distance/time.Here the difference between both speeds = 12  x4 - x6 = 12  3x - 2x12 = 12   => x = 144 km   Therefore, the distance travelled by the jeep in forward or return journey is x = 144 km.

Q: Can yoy guess the Age of Karthik & Kalyan  ? 1710 0

  • 1
    68 & 44
    Correct
    Wrong
  • 2
    64 & 48
    Correct
    Wrong
  • 3
    58 & 54
    Correct
    Wrong
  • 4
    76 & 36
    Correct
    Wrong
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Answer : 2. "64 & 48"
Explanation :

Answer: B) 64 & 48 Explanation: Given Karthik + Kalyan = 112 Given that when karthik is at the age of kalyan he is twice of Kalyan's age i.e When he was 48 means Kalyan is at 24 => Present age of Kalyan is 48 And that of Karthik is 112 - 48 = 64

Q: What is the freezing point of water in Celsius? 1710 0

  • 1
    0 deg C
    Correct
    Wrong
  • 2
    32 deg C
    Correct
    Wrong
  • 3
    -42 deg C
    Correct
    Wrong
  • 4
    -32 deg C
    Correct
    Wrong
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Answer : 1. "0 deg C"
Explanation :

Answer: A) 0 deg C Explanation: The freezing point of water and melting point is 0 °C or 32 °F. The temperature may be lower if supercooling occurs.

Q: The percentage of irrigated land in India is about 1710 0

  • 1
    66%
    Correct
    Wrong
  • 2
    35%
    Correct
    Wrong
  • 3
    71%
    Correct
    Wrong
  • 4
    22%
    Correct
    Wrong
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Answer : 2. "35%"
Explanation :

Answer: B) 35% Explanation: According to World Bank Indicator India - Land use: Agriculture Land - 1797090 sq. Km (about 60.4%).  Forest Area - 677598 sq. Km. (about 22.08%).  Agriculture Irrigated land - 35 %.

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