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  1. If the acceleration due to gravity is doubled at any place, the weight of the body will be
  2. A.
    half
    B.
    double
    C.
    same
    D.
    2g times

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  3. The coefficient of Performance for a refrigerator will be
  4. A.
    0.001
    B.
    0.10
    C.
    1.00
    D.
    above 1.0

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  5. A lift descends with an acceleration of 0.5 metres/sec^2 from the top floor of a multistoried building. The time required to travel a distance of 25 metres will be
  6. A.
    5 sec
    B.
    8 sec
    C.
    10 sec
    D.
    12 sec

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  7. A stone of mass 1 kg tied to a string of 1 metre long is rotated in a horizontal circle at a constant angular speed of 5 rad/sec, then the tension in the string will be
  8. A.
    5N
    B.
    10N
    C.
    15N
    D.
    25N

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  9. For the steam which is initially saturated andflowing through a nozzle, the ratio of pressures at exit and inlet for maximum discharge is equal to
  10. A.
    0.545
    B.
    0.582
    C.
    0.5
    D.
    0.6

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  11. To produce a spark across the gap of a spark plug, the voltage used is
  12. A.
    1000 to 2000 volts
    B.
    2000 to 4000 volts
    C.
    4000 to 6000 volts
    D.
    6000 to 10000 volts

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  13. For cooling the pistons of diesel engine common fluid used is
  14. A.
    air
    B.
    water
    C.
    fuel oil
    D.
    lubricating oil

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  15. The function of a carburettor is to supply
  16. A.
    air and diesel
    B.
    air only
    C.
    air and petrol
    D.
    petrol

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  17. The dimensional formula MLT^2 represents
  18. A.
    velocity
    B.
    acceleration
    C.
    momentum
    D.
    force

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  19. The compression ratio of a petrol engine is approximately
  20. A.
    3:1
    B.
    7:1
    C.
    18:1
    D.
    25:1

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