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Mechanical Engineering :: Thermodynamics

  1. The lower calorific value of fuel may be obtained by adding the heat of steam formed during combustion to the higher calorific value.

  2. A.

    Yes

    B.

    No


  3. One kg of carbon monoxide requires 4/7 kg of oxygen and produces

  4. A.

    11/3 kg of carbon dioxide gas

    B.

    7/3 kg of carbon monoxide gas

    C.

    11/7 kg of carbon dioxide gas

    D.

    8/3 kg of carbon monoxide gas


  5. The molecular mass expresssed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume of

  6. A.

    0.224 litres

    B.

    2.24 litres

    C.

    22.4 litres

    D.

    224 litres


  7. The absolute zero pressure will be

  8. A.

    when molecular momentum of the system becomes zero

    B.

    at sea level

    C.

    at the temperature of - 273 K

    D.

    at the centre of the earth


  9. The gas in cooling chamber of a closed cycle gas turbine is cooled at

  10. A.

    constant volume

    B.

    constant temperature

    C.

    constant pressure

    D.

    none of these