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Home ‣ Mechanical Engineering ‣ Thermodynamics Comments
  • Question

  • In an ideal gas turbine plant, it is assumed that the compression and expansion processes are


  • Options
  • A. isothermal
  • B. isentropic
  • C. polytropic
  • D. none of these

  • Correct Answer
  • isentropic 

    • Thermodynamics problems

    Search Results

    • 1. A cycle consisting of two isothermal and two isentropic processes, is known as

    • Options
    • A. Carnot cycle
    • B. Stirling cycle
    • C. Ericsson cycle
    • D. Joule cycle
      • Discuss
    • 2. The mass of excess air supplied is equal to

    • Options
    • A. x Mass of excess carbon
    • B. x Mass of excess oxygen
    • C. x Mass of excess carbon
    • D. x Mass of excess oxygen
      • Discuss
    • 3. The mass of carbon per kg of flue gas is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. If the carbon content in the bituminous coal is 78 to 81%, it is said to be coking bituminous coal.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 5. It is __________ to make an engine working on a Carnot cycle.

    • Options
    • A. possible
    • B. impossible
      • Discuss
    • 6. When wood is heated with a limited supply of air to a temperature not less than 280°C, the resulting fuel is

    • Options
    • A. coke
    • B. wood charcoal
    • C. bituminous coal
    • D. briquetted coal
      • Discuss
    • 7. The change of entropy, when heat is removed from the gas, is positive.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 8. Steam coal is a

    • Options
    • A. pulverised coal
    • B. brown coal
    • C. coking bituminous coal
    • D. non-coking bituminous coal
      • Discuss
    • 9. Energy can neither be created nor destroyed, but it can be transformed from one form to another. This statement is known as

    • Options
    • A. Zeroth law of thermodynamics
    • B. First law of thermodynamics
    • C. Second law of thermodynamics
    • D. Kinetic theory of gases
      • Discuss
    • 10. The atomic mass of an element is the number of times the atom of that element is heavier than the hydrogen atom.

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

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