GATE Practice Question and Answer

Q: What is the meaning of the four colour dots in the news paper? 1570 0

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Answer :
Explanation :

If you read newspaper daily, then you may be aware of the four coloured dots on the corner of the newspaper.    The four dots CMYK — blue (Cyan), pink (Magenta), Yellow and black (Kalio) are registration marks used during printing to help ensure the print is aligned properly. Any colour can be obtained by adding the correct proportion of these four colours.   CMYK is used as a base for the colours used in printing newspapers, and these four colours are often printed on the paper in either a heart, dot, or square shape.   To print an image, the plates of all these colours are laid out on a page separately and lined up in the same spot while printing. If those four dots are blur or you find the colours overlapping on the image it means the printing is not good. To print an accurate and perfect image, the colors and shape must be arranged precisely and must be claear sharp in order to get the best output.   That's why CMYK is also called registration mark. As physically checking all the pages of the paper is not possible for a printer who prints number of news papers daily, he just checks these dots.

Q: Multiplicative inverse of 0 1570 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    infinity
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 4. "None of the above"
Explanation :

Answer: D) None of the above Explanation: In the real numbers, zero does not have a reciprocal because no real number multiplied by 0 produces 1 (the product of any number with zero is zero).   Hence, 0 doesn't have any multiplicative inverse.

Q: What is the distance around a circle called 1570 0

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Answer :
Explanation :

The distance around a circle is called as Circumference. And that in the case of square or rectangle it is called as Perimeter.

Q: A Bus travels first half distance between two places with a speed of 40 kmph and the rest half distance with a speed of 60 kmph. The average speed of the Bus is ? 1569 0

  • 1
    48 kmph
    Correct
    Wrong
  • 2
    50 kmph
    Correct
    Wrong
  • 3
    46 kmph
    Correct
    Wrong
  • 4
    42 kmph
    Correct
    Wrong
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Answer : 1. "48 kmph"
Explanation :

Answer: A) 48 kmph Explanation: we know that speed = distance traveled/time takenlet the total distance traveled by the car is 2x km.then time taken by it to cover first half is x/60 hour.and for second half is x/40 hour.Then average speed= total distance travelled / total time taken.   i.e. 2xx60+x40   => 2x5x120   = 48 kmph.

Q: Find the C.I. on Rs. 15,225 for 9 months at 16% per annum compounded quarterly ? 1567 0

  • 1
    Rs. 1911
    Correct
    Wrong
  • 2
    Rs. 1909
    Correct
    Wrong
  • 3
    Rs. 1901
    Correct
    Wrong
  • 4
    Rs. 1907
    Correct
    Wrong
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Answer : 3. "Rs. 1901"
Explanation :

Answer: C) Rs. 1901 Explanation: P = Rs. 15225, n = 9 months = 3 quarters, R = 16% p.a. per quarter.   Amount = 15225x1+41003   = (15225 x 26/25 x 26/25 x 26/25) = Rs. 17126.05   => C.I. = 17126 - 15625 = Rs. 1901.05.

Q: If a barometric reading is falling, this usually indicates what 1566 0

  • 1
    Increasing pressure
    Correct
    Wrong
  • 2
    Decreasing pressure
    Correct
    Wrong
  • 3
    No pressure
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 2. "Decreasing pressure"
Explanation :

Answer: B) Decreasing pressure Explanation: A barometer is a tool that measures air pressure A rising barometer indicates increasing air pressure, a falling barometer indicates decreasing air pressure. In space, there is a nearly complete vacuum, so the air pressure is zero.

Q: What number should be Replaced ? 1563 0

  • 1
    15
    Correct
    Wrong
  • 2
    17
    Correct
    Wrong
  • 3
    10
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 4. "6"
Explanation :

Answer: D) 6 Explanation: Sum of numbers in the outer circle in before Arc should come in inner circle patterns in the clock wise direction next Arc. i.e, 9+6 = 15 comes in next arc of inner circle 7+3 = 10 comes in next arc of inner circle In the same way, 4+2 = 6 comes in place of '?'.

Q: Fill in the blanks with the appropriate words. Countries which _________ still undergoing the economic processes_________ known as developing countries. 1563 0

  • 1
    are, are
    Correct
    Wrong
  • 2
    are, is
    Correct
    Wrong
  • 3
    is, are
    Correct
    Wrong
  • 4
    were, are
    Correct
    Wrong
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Answer : 1. "are, are"
Explanation :

Answer: A) are, are Explanation:

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