GATE Practice Question and Answer

Q: Grass : Erosion :: Dam : ? 5936 0

  • 1
    Water
    Correct
    Wrong
  • 2
    Freeze
    Correct
    Wrong
  • 3
    Current
    Correct
    Wrong
  • 4
    Rain
    Correct
    Wrong
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Answer : 1. "Water"
Explanation :

Answer: A) Water Explanation: Here Grass is to Erosion and whereas Dam is to Water. Since Grass prevents Erosion similarly Dam prevents Water flow.   Hence, Grass : Erosion :: Dam : Water.

Q: A man reaches his office 20 min late, if he walks from his home at 3 km per hour and reaches 30 min early if he walks 4 km per hour. How far is his office from his house ? 5885 0

  • 1
    20 km
    Correct
    Wrong
  • 2
    16 km
    Correct
    Wrong
  • 3
    14 km
    Correct
    Wrong
  • 4
    10 km
    Correct
    Wrong
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Answer : 4. "10 km"
Explanation :

Answer: D) 10 km Explanation: Let distance = x km.Time taken at 3 kmph : dist/speed = x/3 = 20 min late.time taken at 4 kmph : x/4 = 30 min earlierdifference between time taken : 30-(-20) = 50 mins = 50/60 hours.x/3- x/4 = 50/60x/12 = 5/6x = 10 km.

Q: egg: fish : : ________ : plant 5877 0

  • 1
    seed
    Correct
    Wrong
  • 2
    stem
    Correct
    Wrong
  • 3
    root
    Correct
    Wrong
  • 4
    leaf
    Correct
    Wrong
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Answer : 1. "seed"
Explanation :

Answer: A) seed Explanation: Fish is from eggs whereas plant is from seeds.

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Answer : 1. "Loss of 12.5%"
Explanation :

Answer: A) Loss of 12.5% Explanation: Let the cost price be Rs. 100Then, market price is Rs. 140Now, the first discount is of 28.57% Rs.140 =~ Rs. 40Hence, its selling price = 140 - 40 = Rs. 100Now since Rana is selling at cost price, any further discount will be equal to loss percentage. The next dicount of 12.5% will be the loss percentage to Rana.

Q: SI unit of equivalent conductance 5778 0

  • 1
    ohm/cm
    Correct
    Wrong
  • 2
    Siemens m2/equivalent
    Correct
    Wrong
  • 3
    Siemens/equivalent
    Correct
    Wrong
  • 4
    mho/cm
    Correct
    Wrong
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Answer : 2. "Siemens m2/equivalent"
Explanation :

Answer: B) Siemens m2/equivalent Explanation: Equivalent conductance is defined as the conductance of an electrolyte solution containing one gram equivalent of the electrolyte. It is equal to the product of specific conductance (k) of the solution and the volume (V) of the solution that contains one gram equivalent of the electrolyte.    λ = k x V   Unit of spceific conductance k is Siemens / m. Volume of the solution V is m3 Now, required equivalent conductance unit is Siemens.m2/equivalent .

Q: Rs.1200 divided among P, Q and R. P gets half of the total amount received by Q and R. Q gets one-third of the total amount received by P and R. Find the amount received by R ? 5725 0

  • 1
    Rs. 1100
    Correct
    Wrong
  • 2
    Rs. 500
    Correct
    Wrong
  • 3
    Rs. 1200
    Correct
    Wrong
  • 4
    Rs. 700
    Correct
    Wrong
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Answer : 2. "Rs. 500"
Explanation :

Answer: B) Rs. 500 Explanation: Let the amounts to be received by P, Q and R be p, q and r.p + q + r = 1200p = 1/2 (q + r) => 2p = q + r Adding 'p' both sides, 3p = p + q + r = 1200=> p = Rs.400 q = 1/3 (p + r) => 3q = p + r Adding 'q' both sides, 4q = p + q + r = 1200=> q = Rs.300 r = 1200 - (p + q) => r = Rs.500.

Q: Exhibit : display :: send : ? 5704 0

  • 1
    Stamp
    Correct
    Wrong
  • 2
    Receive
    Correct
    Wrong
  • 3
    Show
    Correct
    Wrong
  • 4
    Emit
    Correct
    Wrong
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Answer : 4. "Emit"
Explanation :

Answer: D) Emit Explanation: Here the given words represent synonyms. Exhibit and Display are synonyms for each other. Similarly, Send and Emit are synonyms for each other.   Hence, Exhibit : display :: send : Emit.

Q: The two kinds of Main Memory are 5698 2

  • 1
    Random and sequential
    Correct
    Wrong
  • 2
    ROM and RAM
    Correct
    Wrong
  • 3
    Primary and secondary
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 2. "ROM and RAM"
Explanation :

Answer: B) ROM and RAM Explanation: The main memory is defined as the central storage in a computer. (noun) An example of the main memory is where programs and data are kept when the processor is actively using them.   The main storage region of a computer, to which the central processor has immediate or direct access is of two kinds. They are :: RAM -- Random Access Memory ROM -- Read Only Memory.

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