GATE Practice Question and Answer

Q: Iodine test is used to detect 4718 0

  • 1
    Carbohydrate
    Correct
    Wrong
  • 2
    Fat
    Correct
    Wrong
  • 3
    Protein
    Correct
    Wrong
  • 4
    Cholesterol
    Correct
    Wrong
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Answer : 1. "Carbohydrate"
Explanation :

Answer: A) Carbohydrate Explanation: The iodine test is used to test for the presence of starch i.e, Carbohydrate.

Q: If        9 = 63              8 = 48             7 = 35  Then   4 = ? 4709 0

  • 1
    4
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    16
    Correct
    Wrong
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Answer : 2. "8"
Explanation :

Answer: B) 8 Explanation: Here given that 9 = 63, 8 = 48, 7=35, ...    The given question follows a pattern that 9 x (9 - 2) = 9 x 7 = 63 8 x (8 - 2) = 8 x 6 = 48 7 x (7 - 2) = 7 x 5 = 35   Similarly, 4 x (4 - 2) = 4 x 2 = 8.

Q: Odometer is to Mileage as Compass is to 4704 0

  • 1
    Direction
    Correct
    Wrong
  • 2
    Niddle
    Correct
    Wrong
  • 3
    Speed
    Correct
    Wrong
  • 4
    Altitude
    Correct
    Wrong
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Answer : 1. "Direction"
Explanation :

Answer: A) Direction Explanation: An odometer is an instrument which is used to measure Mileage of a vehicle. In the same way, Compass is an instrument used to know the direction.   Hence, Odometer : Mileage :: Compass :: Direction.

Q: 19 persons do 19 programs in 19 hours . If they take 15 mins interval and then how much time they need to do 52 programs. 4630 0

  • 1
    23 hours
    Correct
    Wrong
  • 2
    47 hrs 15 min
    Correct
    Wrong
  • 3
    52 hrs 15 min
    Correct
    Wrong
  • 4
    22 hrs 15 min
    Correct
    Wrong
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Answer : 3. "52 hrs 15 min"
Explanation :

Answer: C) 52 hrs 15 min Explanation: Since they can do 19 programs in 19 hours, Then 52 programs in 52 hours respectively.And a 15 min intervalTotal time they take to do 52 programs is 52 hours 15 minutes.

Q: Find out the wrong number in the following series: 5, 15, 30, 80, 180, 540, 1080 4607 0

  • 1
    540
    Correct
    Wrong
  • 2
    180
    Correct
    Wrong
  • 3
    30
    Correct
    Wrong
  • 4
    80
    Correct
    Wrong
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Answer : 4. "80"
Explanation :

Answer: D) 80 Explanation: There should be 90 instead of 80so we can have a series5, 5x3, 15x2, 30x3, 90x2, 180x3, 540x2 and 1080x3 and so on...

Q: Two trains namely X & Y leave station 'A' at 6.30am and 7.40am and travel at 30km/hr and 40 km/hr respectively. How many kms from 'A' will the trains meet ? 4605 0

  • 1
    140 kms
    Correct
    Wrong
  • 2
    120 kms
    Correct
    Wrong
  • 3
    96 kms
    Correct
    Wrong
  • 4
    142 kms
    Correct
    Wrong
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Answer : 1. "140 kms"
Explanation :

Answer: A) 140 kms Explanation: It is given train X leave station A at 6:30 am, here it is asked to calculate the distance from A when the trains meet, theDistance traveled by train left at 6:30 am upto 7:40 am i.e. in 1 hr. 10 min. or 7/6 hours = 30 x 7/6 = 35 kmSo train leaving at 7:40 am will meet first train after covering a distance of 35 km. with relative speed of 40-30=10 km/hr.Hence time taken = 35/10 = 3.5 hours or 3 hours 30 minutesSo distance from A = Distance traveled by 2nd train in 3 hr. 30 min = 40 x 3.5 = 140 km.

Q: Find the Odd One Out of the following Number Series? 3, 14, 36, 67, 113, 168 4601 0

  • 1
    14
    Correct
    Wrong
  • 2
    36
    Correct
    Wrong
  • 3
    67
    Correct
    Wrong
  • 4
    113
    Correct
    Wrong
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Answer : 3. "67"
Explanation :

Answer: C) 67 Explanation: Here the given number series is 3, 14, 36, 67, 113, 168 It follows a pattern that 3 3 + 1 x 11 = 3 + 11 = 14 14 + 2 x 11 = 14 + 22 = 36 36 + 3 x 11 = 36 + 33 = 69 69 + 4 x 11 = 69 + 44 = 113 113 + 5 x 11 = 113 + 55 = 168   Hence, the wrong number is 67.

Q: Find the odd one out ? Hawk ,  Parrot ,  Owl ,  Eagle 4588 0

  • 1
    Eagle
    Correct
    Wrong
  • 2
    Owl
    Correct
    Wrong
  • 3
    Parrot
    Correct
    Wrong
  • 4
    Hawk
    Correct
    Wrong
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Answer : 3. "Parrot"
Explanation :

Answer: C) Parrot Explanation: All except Parrot are birds of prey.

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