Engineering Thermodynamics MCQs | Page - 3

Dear candidates you will find MCQ questions of Engineering Thermodynamics here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

Q. Which of the following is an open thermodynamic system?

  • (A) pressure cooker
  • (B) manual ice cream freezer
  • (C) centrifugal pump
  • (D) none of the above
💬 Discuss
✅ Correct Answer: (C) centrifugal pump

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

Q. ……… is a non-quasistatic process

  • (A) free expansion of gas
  • (B) expansion of gas in a cylinder under constantpressure
  • (C) rapid leakage of air from a bicycle tyre
  • (D) gradual compression of gas inside a piston-cylinderarrangement
💬 Discuss
✅ Correct Answer: (A) free expansion of gas

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

Q. Choose the correct statement

  • (A) pressure, temp. &entropy are extensive properties
  • (B) pressure, temp. &entropy are intensive properties
  • (C) pressure, volume & temp. are extensive properties
  • (D) volume & entropy are extensive properties
💬 Discuss
✅ Correct Answer: (D) volume & entropy are extensive properties

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

Q. The first law of thermodynamics defines

  • (A) entropy
  • (B) internal energy
  • (C) work
  • (D) heat
💬 Discuss
✅ Correct Answer: (B) internal energy

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

Q. A process becomes irreversible due to

  • (A) work performed by thesystem
  • (B) work performed uponthe system
  • (C) heat supplied to the system
  • (D) friction in the system
💬 Discuss
✅ Correct Answer: (D) friction in the system

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

Q. Second law of thermodynamics defines

  • (A) work
  • (B) heat
  • (C) entropy
  • (D) internal energy
💬 Discuss
✅ Correct Answer: (C) entropy

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

Q. For storing a gas which one of the following types of compression will be ideal

  • (A) constant volume
  • (B) polytropic
  • (C) adiabatic
  • (D) isothermal
💬 Discuss
✅ Correct Answer: (D) isothermal

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

Q. A process which can be stopped at any stage & reversed so that the system & the surroundings are exactly restored to their initial states is known as

  • (A) thermodynamic process
  • (B) irreversible process
  • (C) reversible process
  • (D) isothermal process
💬 Discuss
✅ Correct Answer: (C) reversible process

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

Q. Which of the following is a reversible process?

  • (A) throttling
  • (B) combustion
  • (C) free expansion
  • (D) extension &compression of a spring
💬 Discuss
✅ Correct Answer: (D) extension &compression of a spring

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

Q. Leaking of air from a punctured tube is an example of

  • (A) isothermal expansion
  • (B) adiabatic expansion
  • (C) throttling
  • (D) constant pressureexpansion
💬 Discuss
✅ Correct Answer: (C) throttling

Published by Mr. Dubey ⭐ 104.85K Points at 14-Jun-2020 11:59 am in Engineering Thermodynamics

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