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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 ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is

    2. A.

    0.086
    B.

    1.086
    C.

    3.086
    D.

    4.086

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  2. First law of thermodynamics deals with

    3. A.

    conservation of heat
    B.

    conservation of momentum
    C.

    conservation of mass
    D.

    conservation of energy

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  3. Which of the following statement is correct?

    4. A.

    The heat and work are boundary phenomena
    B.

    The heat and work represent the energy crossing the boundary of the system
    C.

    The heat and work are path functions
    D.

    all of the above

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  4. In S. I. units, the value of the universal gas constant is

    5. A.

    8.314 J/kg mole-K
    B.

    83.14 J/kgmole-K
    C.

    831.4 J/kgmole-K
    D.

    8314 J/kgmole-K

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  5. The throttling process is __________ process.

    6. A.

    reversible
    B.

    irreversible
    C.

    reversible or irreversible

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