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Home Mechanical Engineering Thermodynamics Comments

  • Question
  • The ideal efficiency of simple gas turbine cycle depends upon pressure ratio.


  • Options
  • A. Yes
  • B. No

  • Correct Answer
  • Yes 


  • Thermodynamics problems


    Search Results


    • 1. The universal gas constant (or molar constant) of a gas is the product of

    • Options
    • A. molecular mass of the gas and the gas constant
    • B. atomic mass of the gas and the gas constant
    • C. molecular mass of the gas and the specific heat at constant pressure
    • D. molecular mass of the gas and the specific heat at constant volume
    • Discuss
    • 2. The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called

    • Options
    • A. specific heat at constant volume
    • B. specific heat at constant pressure
    • C. kilo-Joule
    • D. none of these
    • Discuss
    • 3. A machine which violates the first law of thermodynamics is known as perpetual motion machine of the second kind.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 4. A closed cycle gas turbine works on Joule's cycle.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. One kilowatt is equal to

    • Options
    • A. 1 N-m/s
    • B. 100 N-m
    • C. 1000 N-m/s
    • D. 1 x 106 N-m/s
    • Discuss
    • 6. A process, in which the working substance neither receives nor gives out heat to its surroundings during its expansion or compression, is called

    • Options
    • A. isothermal process
    • B. hyperbolic process
    • C. adiabatic process
    • D. polytropic process
    • Discuss
    • 7. The natural petroleum may be separated into

    • Options
    • A. petrol
    • B. kerosene
    • C. fuel oil
    • D. lubricating oil
    • Discuss
    • 8. A definite area or a space where some thermodynamic process takes place is known as

    • Options
    • A. thermodynamic system
    • B. thermodynamic cycle
    • C. thermodynamic process
    • D. thermodynamic law
    • Discuss
    • 9. The specific volume of a system is an __________ property.

    • Options
    • A. extensive
    • B. intensive
    • Discuss
    • 10. If in the equation pvn = C, the value of n = 1, then the process is called isothermal process.

    • Options
    • A. True
    • B. False
    • Discuss


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