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GATE 2017-2018 :: GATE Agricultural

  1. Soybean is to be planted with a precision planter that meters 54 seeds per revolution of the metering disc powered from a ground wheel of diameter 490 mm. The desired plant population is 44800 per ha with a row to row spacing of 0.75 m. The germination percentage is 84. The planter is to be operated at 2.5 km h-1 with a 10% skid of ground wheel. 
    The angular speed ratio of metering disc to ground wheel for obtaining the desired plant population is
  2. A.
    0.125:1
    B.
    0.150:1
    C.
    0.225:1
    D.
    0.250:1

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  3. A 1 hp motor is used for running a dual cylinder reciprocating compressor of a refrigeration system based on R-134a refrigerant having 185 kJ kg-1 cooling capacity. COP of the system is 4.2 and overall efficiency of the compressor is 80%. Specific volume of the refrigerant vapour at suction temperature is 0.15 m3 kg-1. The compressor with bore diameters of 40 mm each runs at 1440 rpm. The mass flow rate of the refrigerant in kg min-1 is
  4. A.
    1.634
    B.
    1.090
    C.
    0.813
    D.
    0.240

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  5. A 1 hp motor is used for running a dual cylinder reciprocating compressor of a refrigeration system based on R-134a refrigerant having 185 kJ kg-1 cooling capacity. COP of the system is 4.2 and overall efficiency of the compressor is 80%. Specific volume of the refrigerant vapour at suction temperature is 0.15 m3 kg-1. The compressor with bore diameters of 40 mm each runs at 1440 rpm. The compressor stroke length in mm is
  6. A.
    16.8
    B.
    33.7
    C.
    50.5
    D.
    67.4

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  7. Choose the most appropriate alternative from the options given below to complete the following sentence: 
    I ___ to have bought a diamond ring.
  8. A.
    have a liking
    B.
    should have liked
    C.
    would like
    D.
    may like

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  9. Choose the most appropriate alternative from the options given below to complete the following sentence:
    Food prices ___ again this month.
  10. A.
    have raised
    B.
    have been raising
    C.
    have been rising
    D.
    have arose

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  11. Choose the most appropriate alternative from the options given below to complete the following sentence: 
    The administrators went on to implement yet another unreasonable measure, arguing that the measures were already ___ and one more would hardly make a difference.
  12. A.
    reflective
    B.
    utopian
    C.
    luxuriant
    D.
    unpopular

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  13. Choose the most appropriate alternative from the options given below to complete the following sentence: 
    To those of us who had always thought him timid, his ___ came as a surprise.
  14. A.
    intrepidity
    B.
    inevitability
    C.
    inability
    D.
    inertness

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  15. The arithmetic mean of five different natural numbers is 12. The largest possible value among the numbers is
  16. A.
    12
    B.
    40
    C.
    50
    D.
    60

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  17. Two policemen, A and B, fire once each at the same time at an escaping convict. The probability that A hits the convict is three times the probability that B hits the convict. If the probability of the convict not getting injured is 0.5, the probability that B hits the convict is
  18. A.
    0.14
    B.
    0.22
    C.
    0.33
    D.
    0.40

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  19. The total runs scored by four cricketers P, Q, R, and S in years 2009 and 2010 are given in the following table: 

    The player with the lowest percentage increase in total runs is
  20. A.
    P
    B.
    Q
    C.
    R
    D.
    S

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