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  1. Which of the following is a boiler accessory i.e., not a boiler mounting ?

  2. A.
    Blow off cock
    B.
    Feed check valve
    C.
    Feed water pump
    D.
    Stop valve

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  3. Which of the following forces does not act on a fluid at rest ?

  4. A.
    Viscous force
    B.
    Gravity force
    C.
    Hydrostatic force
    D.
    Surface tension force

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  5. Density in the solid state is slightly less than that in its liquid state, in case of

  6. A.
    carbon dioxide
    B.
    water
    C.
    mercury
    D.
    none of these.

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  7. Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.

  8. A.
    slip
    B.
    fracture
    C.
    winning
    D.
    dislocation

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  9. __________ number determines whether the fluid flow in an open channel is supercritical, critical or sub-critical.

  10. A.
    Mach
    B.
    Reynolds
    C.
    Froude
    D.
    Weber

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  11. The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

  12. A.
    same
    B.
    slightly less
    C.
    slightly more
    D.
    much more

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  13. The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

  14. A.
    5
    B.
    15
    C.
    30
    D.
    45

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  15. Pick out the wrong statement.

  16. A.
    Complete unity of command exists in a line organisation.
    B.
    Line organisation is net suitable for expansion and growth of an industry.
    C.
    In line and staff organisation, "line" executes and "staff directs.
    D.
    none of these.

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  17. __________ of austenite decreases the hardenability in steel.

  18. A.
    Fine grains
    B.
    Coarse grains
    C.
    Homogeneity
    D.
    Dissolved elements (except cobalt)

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  19. A jig is used while __________ a hole.

  20. A.
    boring
    B.
    counter boring
    C.
    drilling
    D.
    enlarging

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