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    Mechanical Engineering Quiz - Set 20


    1. Most of the engines, generally, do not require balancing of secondary forces and couples.
    Right
    Wrong

    2. Cemented carbide tools are generally poor in shear.
    Yes
    No

    3. A closed cycle gas turbine works on Joule's cycle.
    True
    False

    4. A single stage turbine is not used because it requires large reduction gearing due to very high rotational speed.
    Agree
    Disagree

    5. A non-reversible machine is also called a self-locking machine.
    Disagree
    Agree

    6. In welding aluminium with TIG arc welding, alternating current is used.
    Correct
    Incorrect

    7. The motion of the body from one extremity to the other is known as a beat.
    Disagree
    Agree

    8. A railway bridge is an example of a machine.
    True
    False

    9. Mild steel during machining produces _________ chips.
    Continuous
    Discontinuous

    10. It is _________ to make an engine working on a Carnot cycle.
    Possible
    Impossible

    11. The loss of kinetic energy during elastic impact is zero.
    Disagree
    Agree

    12. In petrol engines, using a fixed octane rating fuel, the increase in engine speed will decrease the knocking tendency.
    Yes
    No

    13. The turbine blades do not change the direction of steam issuing from the nozzle.
    True
    False

    14. The uniform pressure theory gives a higher frictional torque than the uniform wear theory.
    Agree
    Disagree

    15. The centre of gravity of a rectangle lies at a point where its two diagonals meet each other.
    Disagree
    Agree

    16. The pressure of steam at throat of a steam nozzle is called critical pressure.
    Agree
    Disagree

    17. The in-feed grinding is similar to plunge grinding.
    Yes
    No

    18. The amount, by which the outer edge of the rail is raised, is known as super-elevation.
    Disagree
    Agree

    19. The two rolls in a two high rolling mills are of ________ size.
    Equal
    Different

    20. A pendulum type governor is a Watt governor.
    Agree
    Disagree

         Score =

    Correct answers:

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    Item Reviewed: Mechanical Engineering Quiz - Set 20 Rating: 5 Reviewed By: Pranab Debnath
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