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Mechanical Engineering :: Thermodynamics

  1. Wood charcoal is produced by heating the wood at 100°C.

  2. A.

    Yes

    B.

    No


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

  4. A.

    soft coke

    B.

    hard coke

    C.

    pulverised coal

    D.

    bituminous coal


  5. The bomb calorimeter is used for finding the __________ calorific value of solid and liquid fuels.

  6. A.

    higher

    B.

    lower


  7. The efficiency of the Carnot cycle may be increased by

  8. A.

    increasing the highest temperature

    B.

    decreasing the highest temperature

    C.

    increasing the lowest temperature

    D.

    keeping the lowest temperature constant