Menu
Home / Mechanical Engineering / Thermodynamics :: Section 2

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. Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle

    2. A.

    combustion is at constant volume
    B.

    expansion and compression are isentropic
    C.

    maximum temperature is higher
    D.

    heat rejection is lower

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. Liquid fuels have higher calorific value than solid fuels.

    3. A.

    Yes
    B.

    No

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. The free expansion process is __________ non-flow process.

    4. A.

    reversible
    B.

    irreversible

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is

    5. A.

    30 kJ
    B.

    54 kJ
    C.

    84 kJ
    D.

    114 kJ

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. The gas constant (R) is equal to the __________ of two specific heats.

    6. A.

    sum
    B.

    difference
    C.

    product
    D.

    ratio

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers