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  • Question
  • Otto cycle is also known as


  • Options
  • A. constant pressure cycle
  • B. constant volume cycle
  • C. constant temperature cycle
  • D. constant temperature and pressure cycle

  • Correct Answer
  • constant volume cycle 


  • Thermodynamics problems


    Search Results


    • 1. The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as

    • Options
    • A. law of equipartition of energy
    • B. law of conservation of energy
    • C. law of degradation of energy
    • D. none of these
    • Discuss
    • 2. The heating and expanding of a gas is called thermodynamic system.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 3. The specific heat at constant volume is

    • Options
    • A. the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure
    • B. the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume
    • C. the amount of heat required to raise the temperature of 1 kg of water through one degree
    • D. any one of the above
    • Discuss
    • 4. The free expansion process is __________ non-flow process.

    • Options
    • A. reversible
    • B. irreversible
    • Discuss
    • 5. Liquid fuels consist of hydrocarbons.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. The heat absorbed during a polytropic process is

    • Options
    • A. x Workdone
    • B.
    • C.
    • D. all of these
    • Discuss
    • 7. A process, in which the temperature of the working substance remains constant during its expansion or compression, is called

    • Options
    • A. isothermal process
    • B. hyperbolic process
    • C. adiabatic process
    • D. polytropic process
    • Discuss
    • 8. Producer gas is obtained by

    • Options
    • A. partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
    • B. carbonisation of bituminous coal
    • C. passing steam over incandescent coke
    • D. passing air and a large amount of steam over waste coal at about 650°C
    • Discuss
    • 9. A closed system is one in which heat and work crosses the boundary of the system but the mass of the working substance does not crosses the boundary of the system.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 10. The free expansion process is a constant enthalpy process.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss


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