GATE Practice Question and Answer

Q: What is the place value of 6 in 64? 1899 0

  • 1
    6
    Correct
    Wrong
  • 2
    60
    Correct
    Wrong
  • 3
    64
    Correct
    Wrong
  • 4
    10
    Correct
    Wrong
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Answer : 2. "60"
Explanation :

Answer: B) 60 Explanation: We know that, ● Each digit has a fixed position called its place. ● Each digit has a value depending on its place called the place value of the digit. ● The face value of a digit for any place in the given number is the value of the digit itself ● Place value of a digit = (face value of the digit) × (value of the place).   Hence, the place value of 6 in 64 = 6 x 10 = 60.

Q: A can build a wall in 16 days while B can destroy it in 8 days. A worked for 5 days. Then B joined with A for the next 2 days. Find in how many days could A build the remaining wall ? 1893 0

  • 1
    12 days
    Correct
    Wrong
  • 2
    14 days
    Correct
    Wrong
  • 3
    13 days
    Correct
    Wrong
  • 4
    16 days
    Correct
    Wrong
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Answer : 3. "13 days"
Explanation :

Answer: C) 13 days Explanation: Now, Total work = LCM(16, 8) = 48 A's one day work = + 48/16 = + 3 B's one day work = - 48/8 = -6 Given A worked for 5 days to build the wall => 5 days work = 5 x 3 = + 15 2days B joined with A in working = 2(3 - 6) = - 6 Remaining Work of building wall = 48 - (15 - 6) = 39 Now this remaining work will be done by A in = 39/3 = 13 days.

Q: Oar is to rowboat as foot is to 1893 0

  • 1
    Walk
    Correct
    Wrong
  • 2
    Loafers
    Correct
    Wrong
  • 3
    Skateboard
    Correct
    Wrong
  • 4
    Running
    Correct
    Wrong
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Answer : 3. "Skateboard"
Explanation :

Answer: C) Skateboard Explanation: A rowboat can be put into motion by using oar. Similaarly, a skateboard can be put into motion by using foot. The other options like walk and running are not objects to be in motion. And loafers are something worn on foot.   Hence, Oar : Rowboat :: Foot : Skateboard.

Q: What is the systematic name of NH4ClO3? 1893 0

  • 1
    Ammonium Chloride
    Correct
    Wrong
  • 2
    Ammonium Chlorate
    Correct
    Wrong
  • 3
    Ammonium Chlorane
    Correct
    Wrong
  • 4
    Ammonium Chlorine
    Correct
    Wrong
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Answer : 2. "Ammonium Chlorate"
Explanation :

Answer: B) Ammonium Chlorate Explanation: In common we all call the systematic name of NH4ClO3 as Ammonium Chlorate. But originally the systematic name is azanium trioxidochlorate.

Q: Only if Sheela is happy, then she does not go to work. 1893 0

  • 1
    Sheela is not happy and she goes to work.
    Correct
    Wrong
  • 2
    Sheela is happy and she does not go to work
    Correct
    Wrong
  • 3
    Sheela is not happy and she does not go to work.
    Correct
    Wrong
  • 4
    Sheela is happy and she goes to work.
    Correct
    Wrong
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Answer : 1. "Sheela is not happy and she goes to work."
Explanation :

Answer: A) Sheela is not happy and she goes to work. Explanation: The event of "Sheela is not going to work" happens only when the event "Sheela is happy" happens. Also, if the event "Sheela is happy" does not happen, then the event "Sheela is not going to work" will not happen. In other words, if it is true that Sheela is not happy, then it means that Sheela is going to work.

Q: Find the next number in the given series 0.25, 8, 128, 1024, ? 1892 0

  • 1
    4096
    Correct
    Wrong
  • 2
    2526
    Correct
    Wrong
  • 3
    8486
    Correct
    Wrong
  • 4
    2620
    Correct
    Wrong
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Answer : 1. "4096"
Explanation :

Answer: A) 4096 Explanation: Here given series follows a pattern that 0.25, 8, 128, 1024, ? 0.25 x 32 = 8 8 x 16 = 128 128 x 8 = 1024 1024 x 4 = 4096

Q: Which of the following statements about Woodrow Wilson is true? 1891 0

  • 1
    He wanted to place strict government controls on corporations.
    Correct
    Wrong
  • 2
    He overturned discriminatory laws against African Americans.
    Correct
    Wrong
  • 3
    He advocated eliminating the income tax.
    Correct
    Wrong
  • 4
    He opposed reforms to the banking system.
    Correct
    Wrong
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Answer : 1. "He wanted to place strict government controls on corporations."
Explanation :

Answer: A) He wanted to place strict government controls on corporations. Explanation: Woodrow Wilson was one of the major "Progressives" in American government and so 'He wanted to place strict government controls on corporations.'

Q: A circular piece of thin wire is converted into a rhombus of side 11 cm. Find the diameter of the circular piece? 1891 0

  • 1
    28 cm
    Correct
    Wrong
  • 2
    3.5 cm
    Correct
    Wrong
  • 3
    7 cm
    Correct
    Wrong
  • 4
    14 cm
    Correct
    Wrong
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Answer : 4. "14 cm"
Explanation :

Answer: D) 14 cm Explanation: Circular piece is 4 x 11 = 44 cm long, Then Circumference of circle is given by, 44 = pi x D, where D is the diameter D = 44 / pi Take pi = 22 / 7, then D = 44 / (22/7) = (44 x 7) / 22 D = 14 cm.

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