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Mechanical Engineering :: IC Engine and Nuclear Power Plants

  1. Solid fuel fabricated into various small shapes, which are assembled to form fuel elements, is in the form of

  2. A.
    plates
    B.
    pallets
    C.
    pins
    D.
    all of these

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  3. Which of the following statement is wrong ?

  4. A.
    A four stroke cycle engine develops twice the power as that of a two stroke cycle engine.
    B.
    For the same power developed, a four stroke cycle engine is lighter, less bulky and occupies less floor area.
    C.
    The petrol engines are costly than diesel engines.
    D.
    all of the above

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  5. The turbine of the turbo-prop engine is __________ that of the turbo-jet engine.

  6. A.
    same as
    B.
    smaller than
    C.
    bigger than

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  7. A higher compression ratio causes

  8. A.
    pre-ignition
    B.
    increase in detonation
    C.
    an acceleration in the rate of combustion
    D.
    any one of these

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  9. Which of the following statement is correct ?

  10. A.
    Compression ratio for petrol engines varies from 6 to 10.
    B.
    Higher compression ratio in diesel engines results in higher pressures.
    C.
    Petrol engines work on Otto cycle.
    D.
    all of the above

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  11. The correct sequence of the decreasing order of brake thermal efficiency of the three given basic types of engines is

  12. A.
    four stroke C.I. engine, four stroke S.I. engine, two stroke S.I. engine
    B.
    four stroke S.I. engine, four stroke C.I. engine, two stroke S.I. engine
    C.
    four stroke C.I. engine, two stroke S.I. engine, four stroke S.I. engine
    D.
    two stroke S.I. engine, four stroke S.I. engine, four stroke C.I. engine

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  13. The engines in which the combustion of fuel takes place inside the engine cylinder are called internal combustion engines.

  14. A.
    True
    B.
    False

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  15. A fuel will detonate less if it has higher self ignition temperature.

  16. A.
    True
    B.
    False

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  17. The combustion in compression ignition engines is

  18. A.
    homogeneous
    B.
    hetrogeneous
    C.
    both (a) and (b)
    D.
    none of these

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  19. Which of the following fuel detonates readily ?

  20. A.
    Benzene
    B.
    Iso-octane
    C.
    Normal heptane
    D.
    Alcohol

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