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Mechanical Engineering :: Thermodynamics

Thermodynamics - Section 1
Thermodynamics - Section 2
Thermodynamics - Section 3
Thermodynamics - Section 4
Thermodynamics - Section 5
Thermodynamics - Section 6
Thermodynamics - Section 7
Thermodynamics - section-8

  1. The volumetric or molar specific heat at constant pressure is the product of

    2. A.

    molecular mass of the gas and the specific heat at constant volume
    B.

    atomic mass of the gas and the gas constant
    C.

    molecular mass of the gas and the gas constant
    D.

    none of the above

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  2. The efficiency of Carnot cycle depends upon

    3. A.

    temperature limits
    B.

    pressure ratio
    C.

    volume compression ratio
    D.

    cut-off ratio and compression ratio

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  3. The gas turbine cycle with regenerator improves

    4. A.

    thermal efficiency
    B.

    work ratio
    C.

    avoids pollution
    D.

    none of these

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  4. Which of the following has the highest calorific value?

    5. A.

    Peat
    B.

    Lignite
    C.

    Bituminous coal
    D.

    Anthracite coal

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  5. When a gas is heated, change takes place in

    6. A.

    pressure
    B.

    volume
    C.

    temperature
    D.

    all of these

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