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Mechanical Engineering :: Thermodynamics

  1. A cycle consisting of two isothermal and two isentropic processes, is known as

  2. A.

     Carnot cycle

    B.

     Stirling cycle

    C.

     Ericsson cycle

    D.

     Joule cycle


  3. Barometric pressure is equal to

  4. A.

     760 mm Hg

    B.

     Zero mm Hg

    C.

     735.6 mm Hg

    D.

     1 mm Hg


  5. Specific heat of air at constant pressure is equal to

  6. A.

     0.17

    B.

     0.21

    C.

     0.24

    D.

     1.0


  7. One barometric pressure or 1 atmospheric pressure is equal to

  8. A.

     1 kgf/cm²

    B.

     1.033 kgf/cm²

    C.

     0 kgf/cm²

    D.

     1.0197 kgf/cm²


  9. The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as

  10. A.

     Dual combustion cycle

    B.

     Diesel cycle

    C.

     Atkinson cycle

    D.

     Rankine cycle


  11. A heat exchange process in which the product of pressure and volume remains constant is known as

  12. A.

     Heat exchange process

    B.

     Throttling process

    C.

     Isentropic process

    D.

     Hyperbolic process


  13. Work done in an adiabatic process between a given pair of end states depends on

  14. A.

     The end states only

    B.

     Particular adiabatic process

    C.

     The value of index ‘n’

    D.

     The value of heat transferred


  15. Steam coal is a

  16. A.

     Pulverized coal

    B.

     Brown coal

    C.

     Coking bituminous coal

    D.

     Non-coking bituminous coal


  17. The increase in entropy of a system represents

  18. A.

     Increase in availability of energy

    B.

     Increase in temperature

    C.

     Decrease in pressure

    D.

     Degradation of energy


  19. The __________ is obtained when carbonization of coal is carried out at 500° to 700° C.

  20. A.

     Soft coal

    B.

     Hard coal

    C.

     Pulverized coal

    D.

     Bituminous coal