GATE Practice Question and Answer

Q: Find the Odd One Out? 3 24 186 1008 5040 20160 2622 0

  • 1
    24
    Correct
    Wrong
  • 2
    20160
    Correct
    Wrong
  • 3
    186
    Correct
    Wrong
  • 4
    5040
    Correct
    Wrong
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Answer : 3. "186"
Explanation :

Answer: C) 186 Explanation: The given number series is 3  24  186  1008  5040  20160 Here  the given series follows a pattern that, 3 3 x 8 = 24 24 x 7 = 168 not 186 168 x 6 = 1008 1008 x 5 =  5040 5040 x 4 = 20160   Hence the Odd One in the number series is 186.

Q: Is a square a rhombus? 2621 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE Answer & Explanation Answer:
    Correct
    Wrong
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Answer : 1. "TRUE"
Explanation :

Answer: A) TRUE Explanation: Yes, a square is a rhombus. But a rhombus is not a square unless the interior angles are at right angles.   We know that, a square is a quadrilateral with all sides equal and all the interior angles are 90 deg i.e, at right angles.  Whereas a rhombus is also a quadrilateral with all sides equal but the interior angles are not at right angles. Hence, if the interior angles of a rhombus are all at right angles (90 deg), then it is square.

Q: Tides are primarily a result of the  ____ ? 2620 0

  • 1
    Attraction of the Moon
    Correct
    Wrong
  • 2
    Farrel's law
    Correct
    Wrong
  • 3
    Ocean Currents
    Correct
    Wrong
  • 4
    Earth's pressure system
    Correct
    Wrong
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Answer : 1. "Attraction of the Moon"
Explanation :

Answer: A) Attraction of the Moon Explanation:

Q: In the given numbers, if in each number first digit is replaced by the third digit, second digit is replaced by the first digit and third digit is replaced by the second digit then which number will be the biggest ? 653   749   872   933   541 2620 0

  • 1
    933
    Correct
    Wrong
  • 2
    872
    Correct
    Wrong
  • 3
    749
    Correct
    Wrong
  • 4
    653
    Correct
    Wrong
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Answer : 3. "749"
Explanation :

Answer: C) 749 Explanation: From the given data, Largest number = 974 Therefore, the required number is 749.

Q: Microphone : Loud :: Microscope : ? 2618 0

  • 1
    Investigate
    Correct
    Wrong
  • 2
    Magnify
    Correct
    Wrong
  • 3
    Examine
    Correct
    Wrong
  • 4
    Elongate
    Correct
    Wrong
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Answer : 2. "Magnify"
Explanation :

Answer: B) Magnify Explanation: As Microphone makes sound louder similarly Microscope makes the object magnified.   Hence, Microphone : Loud :: Microscope : Magnify.

Q: Which of these is unique to flowering plants? 2617 0

  • 1
    double fertilization
    Correct
    Wrong
  • 2
    an embryo surrounded by nutritive tissue
    Correct
    Wrong
  • 3
    haploid gametophytes
    Correct
    Wrong
  • 4
    pollen production
    Correct
    Wrong
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Answer : 1. "double fertilization"
Explanation :

Answer: A) double fertilization Explanation: In flowering plants one sperm nucleus fertilizes the egg and the other sperm nucleus fuses with two other nuclei found within the ovule, thus forming triploid endosperm.   Hence, double fertilization is unique to flowering plants.

Q: P and Q can do a work in 4 hours and 12 hours respectively. P starts the work at 9am and they work alternately for one hour each. When will the work be completed ? 2617 0

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

Answer: D) 3 pm Explanation: Work done by P and Q in the first two hours, working alternately = First hour P + Second hour Q ⇒14+112=13 work is completed in 2 hours Then, the total time required to complete the work by P and Q working alternately=2 x 3= 6hours Thus, work will be completed at 3pm.

Q: What has One Eye Yet cannot See? 2614 0

  • 1
    One-eyed Jack
    Correct
    Wrong
  • 2
    A Needle
    Correct
    Wrong
  • 3
    Blind Justice
    Correct
    Wrong
  • 4
    Hurricane eye
    Correct
    Wrong
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Answer : 2. "A Needle"
Explanation :

Answer: B) A Needle Explanation: What has one eye yet cannot see is An Eye of a Needle.   A needle has an eye through which we thread it but it is not for seeing.

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