GATE Practice Question and Answer

Q: How many right angles does a square have? 1917 0

  • 1
    2
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    4
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "4"
Explanation :

Answer: C) 4 Explanation: A square and a rectangle each have 4 right (90 deg) angles.  Both square and rctangle have 4 sides and 4 angles, but the only difference is square is a rectangle with all sides equal.

Q: Which startup acquired Google's satellite imaging business in 2017 ? 1916 0

  • 1
    NovaWurks
    Correct
    Wrong
  • 2
    PlanetiQ
    Correct
    Wrong
  • 3
    Planet Labs
    Correct
    Wrong
  • 4
    UrtheCast
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Planet Labs"
Explanation :

Answer: C) Planet Labs Explanation: American startup Planet Labs, that launches small satellites into orbit and sells the imagery, has announced its acquisition of Google's 'Terra Bella' satellite business. As part of the agreement, 60 Google employees will join the startup founded by ex-NASA scientists. Terra Bella, was acquired by Google in 2014 for $500 million and that time it was known as Skybox Imaging.

Q: Friction can be reduced by changing from 1916 0

  • 1
    Static to Dynamic
    Correct
    Wrong
  • 2
    Rolling to Sliding
    Correct
    Wrong
  • 3
    Dynamic to Static
    Correct
    Wrong
  • 4
    Sliding to Rolling
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Sliding to Rolling"
Explanation :

Answer: D) Sliding to Rolling Explanation: Any object rolls when there is no friction. So, Sliding to Rolling is correct.

Q: How fast do satellites orbit the earth? 1915 0

  • 1
    28,000 kmph
    Correct
    Wrong
  • 2
    26,000 kmph
    Correct
    Wrong
  • 3
    17,500 kmph
    Correct
    Wrong
  • 4
    22,500 kmph
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "28,000 kmph"
Explanation :

Answer: A) 28,000 kmph Explanation: Satellites orbit the earth at a speed of 28,000 kmph. Satellites that are further away actually travel slower. The International Space Station has a Low Earth Orbit, about 400 kilometers (250 miles) above the earth's surface. Objects orbiting at that altitude travel about 28,000 kilometers per hour (17,500 miles per hour).

Q: Find the quadratic equations whose roots are the reciprocals of the roots of 2x2+5x+3? 1914 0

  • 1
    3x2+5x+2=0
    Correct
    Wrong
  • 2
    5x2+3x+2=0
    Correct
    Wrong
  • 3
    3x2-5x-2=0
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "3x2+5x+2=0"
Explanation :

Answer: A) A Explanation: The quadratic equation whose roots are reciprocal of 2x2+5x+3=0 can be obtained by replacing x by 1/x.   Hence, 2(1/x)(1/x)+ 5(1/x) + 3 = 0   => 3x2+5x+2=0

Q: Find the next number in the given number series? 11, 5.5, 10, 6.5, 9, ? 1914 0

  • 1
    6.5
    Correct
    Wrong
  • 2
    7.5
    Correct
    Wrong
  • 3
    8.5
    Correct
    Wrong
  • 4
    10.5
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "7.5"
Explanation :

Answer: B) 7.5 Explanation: The given number series follows a pattern that 11 11 - 5.5 = 5.5 5.5 + 4.5 = 10 10 - 3.5 = 6.5 6.5 + 2.5 = 9 9 - 1.5 = 7.5   Hence, the next number in the given number series is 7.5.

Q: 52 C in a P? 1912 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

52 C in a P represents 52 Cards in a Pack. Similar to  12 S of the Z  5 C in an OF

Q: 45 men working 9 hours per day dig 40 m deep. How many extra men should be put to dig to a depth of 56 m working 7 hours per day ? 1911 0

  • 1
    36
    Correct
    Wrong
  • 2
    61
    Correct
    Wrong
  • 3
    48
    Correct
    Wrong
  • 4
    54
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "36"
Explanation :

Answer: A) 36 Explanation: (45 x 9)/40 = (M x 7)/56 => M = 81 => 81 – 45 = 36

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully