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Mechanical Engineering :: IC Engine and Nuclear Power Plants

  1. Morse test can be conducted for

  2. A.
    petrol engines
    B.
    diesel engines
    C.
    multi-cylinder engines
    D.
    all of these

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  3. The basic requirement of a good combustion chamber is

  4. A.
    minimum turbulence
    B.
    low compression ratio
    C.
    high thermal efficiency and power output
    D.
    low volumetric efficiency

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  5. In a four stroke cycle petrol engine, the charge is compressed when both the valves (i.e. inlet valve and exit valve) are closed,

  6. A.
    Agree
    B.
    Disagree

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  7. The thermal efficiency of diesel engines on weak mixtures is

  8. A.
    unaffected
    B.
    lower
    C.
    higher
    D.
    dependent on other factors

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  9. The injection pressure in a diesel engine is about

  10. A.
    10 bar
    B.
    100 bar
    C.
    150 bar
    D.
    500 bar

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  11. High speed compression engines operate on

  12. A.
    Otto cycle
    B.
    Diesel cycle
    C.
    Dual-combustion cycle
    D.
    all of these

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  13. In a four stroke cycle petrol engine, the inlet valve

  14. A.
    opens at top dead centre and closes at bottom dead centre
    B.
    opens at 20° before top dead centre and closes at 40° after bottom dead centre
    C.
    opens at 20° after top dead centre and closes at 20° before bottom dead centre id) may open or close anywhere

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  15. The nuclear power station at Tarapur has the reactor of the __________ type.

  16. A.
    pressurized water
    B.
    boiling water
    C.
    gas cooled
    D.
    liquid metal cooled

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  17. In nuclear power plants, due to reflector, less fuel is needed to generate sufficient neutrons to sustain a chain reaction.

  18. A.
    Yes
    B.
    No

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  19. The secondary fuel used in nuclear power plants is

  20. A.
    U233 and Pu239
    B.
    U235 and Th232
    C.
    U235 and Pu238
    D.
    U233 and Pu238

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