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Mechanical Engineering :: Thermodynamics

  1. The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to

  2. A.

     0

    B.

     1

    C.

     γ

    D.

     ∝

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  3. During which of the following process does heat rejection takes place in Carnot cycle?

  4. A.

     Isothermal expansion

    B.

     Isentropic expansion

    C.

     Isothermal compression

    D.

     Isentropic compression

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  5. The unit of mass in S.I. units is

  6. A.

     Kilogram

    B.

     Gram

    C.

     Tonne

    D.

     Quintal

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  7. The unit of pressure in S.I. units is

  8. A.

     kg/cm²

    B.

     mm of water column

    C.

     Pascal

    D.

     Dyne per square cm

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  9. The unit of length in S.I. units is

  10. A.

     Meter

    B.

     Centimeter

    C.

     Kilometer

    D.

     Millimeter

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  11. The unit of energy in S.I. units is

  12. A.

     watt

    B.

     Joule

    C.

     joule/s

    D.

     joule/m

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  13. The unit of time in S.I. units is

  14. A.

     Second

    B.

     Minute

    C.

     Hour

    D.

     Day

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  15. The unit of temperature in S.I. units is

  16. A.

     Centigrade

    B.

     Celsius

    C.

     Fahrenheit

    D.

     Kelvin

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  17. The unit of power in S.I. units is

  18. A.

     Newton

    B.

     Pascal

    C.

     Erg

    D.

     Watt

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  19. The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is

  20. A.

     29.27 J/kmol °K

    B.

     83.14 J/kmol °K

    C.

     848 J/kmol °K

    D.

     735 J/kmol °K

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