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    Mechanical Engineering Quiz - Set 18


    1. The distance moved by the valve from one end to the other end is called valve travel.
    True
    False

    2. A diesel engine has inlet valve, fuel injection valve and exhaust valve.
    Yes
    No

    3. The radius of gyration is the distance where the whole mass (or area) of a body is assumed to be concentrated.
    Incorrect
    Correct

    4. The thickness of key is usually taken equal to one-sixth of diameter of shaft.
    Yes
    No

    5. Gagger is used for cleaning the moulding sand.
    Correct
    Incorrect

    6. Power screws are used to convert rotary motion into translatory motion.
    True
    False

    7. A Watt's governor is a spring loaded governor.
    Yes
    No

    8. As the cutting speed increases, tool life decreases.
    Yes
    No

    9. A large electrode is used in unshielded arc welding.
    Correct
    Incorrect

    10. The unit of mass moment of inertia in S.I. units is kg-m2.
    True
    False

    11. The plunge grinding requires very _________ speed.
    High
    Low

    12. A pouring basin acts as a reservoir for the molten metal.
    Agree
    Disagree

    13. Frequency of vibrations means the number of cycles per second.
    No
    Yes

    14. Sulphur dioxide has the lowest boiling point.
    Yes
    No

    15. In bending operation, the metal takes the shape of a punch.
    Yes
    No

    16. The efficiency of a screw jack is dependent upon the load raised or lowered.
    True
    False

    17. The entropy is a point function and thus it is a property of the same.
    Correct
    Incorrect

    18. The kinetic energy of a body __________ upon its mass and velocity.
    Does not depend
    Depends

    19. The critical pressure gives the velocity of steam at the throat equal to the velocity of sound.
    Agree
    Disagree

    20. The work-done in a free expansion process is zero.
    True
    False

         Score =

    Correct answers:

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    Item Reviewed: Mechanical Engineering Quiz - Set 18 Rating: 5 Reviewed By: Pranab Debnath
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