GATE Practice Question and Answer

Q: The Capacity of a Communication Channel is Measured in 4426 0

  • 1
    Band rate
    Correct
    Wrong
  • 2
    Band width
    Correct
    Wrong
  • 3
    Data flow
    Correct
    Wrong
  • 4
    Bit capacity
    Correct
    Wrong
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Answer : 2. "Band width"
Explanation :

Answer: B) Band width Explanation: The path that data takes from source to destination is called a Channel. A channel is a communication medium. A channel has a certain capacity for transmitting information.    The "capacity" of a channel is the theoretical upper-limit to the bit rate over a given channel that will result in negligible errors. Channel capacity is often measured by its Bandwidth in Hz or its data rate in bits per second.

Q: In a scheme, a pack of three soaps with MRP Rs.45 is available for Rs.42. If it still gives a profit of 5% to the shopkeeper, then the cost price of the pack is ? 4424 0

  • 1
    38
    Correct
    Wrong
  • 2
    39
    Correct
    Wrong
  • 3
    40
    Correct
    Wrong
  • 4
    41
    Correct
    Wrong
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Answer : 3. "40"
Explanation :

Answer: C) 40 Explanation: Given M.P=45,S.P=42, Profit = 0.05 Let C.P=x , Then Profit = (42-x)/x = 0.05=> x = 40.

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. 4423 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.

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Answer :
Explanation :

Day               Play Monday        No playTuesday           PWednesday       SThursday          RFriday              QSaturday          T Answers : From the above table : 1) On Friday play Q was organised. 2) On Monday Noplay  was organised. 3)  On Thursday Play R was organised.

Q: Warm is to Hot as Not so Good is to 4402 0

  • 1
    Average
    Correct
    Wrong
  • 2
    Fair
    Correct
    Wrong
  • 3
    Not so bad
    Correct
    Wrong
  • 4
    Worse
    Correct
    Wrong
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Answer : 4. "Worse"
Explanation :

Answer: D) Worse Explanation: Warm and hot are in the same meaning sense , so not so good is same as worse in meaning.

Q: The largest measuring cylinder that can accurately fill 3 tanks of capacity 98, 182 and 266 litres each, is of capacity ? 4394 0

  • 1
    7 lts
    Correct
    Wrong
  • 2
    14 lts
    Correct
    Wrong
  • 3
    98 lts
    Correct
    Wrong
  • 4
    42 lts
    Correct
    Wrong
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Answer : 2. "14 lts"
Explanation :

Answer: B) 14 lts Explanation: To know the the measuring cylinder that can fill all the given capacities , they must be divisible by the required number. 98,182,266 all are divisible by 14 So  14 litres  is the largest cylinder that can fill all the given cylinders.                                        (or) The other method is take HCF of all given capacities i.e 98, 182 and 266.

Q: Iodine test is used to detect 4380 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: Find out the wrong number in the following series: 5, 15, 30, 80, 180, 540, 1080 4379 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...

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