Engineering

Engineering Thermodynamics MCQs: 496 Questions & Answers in Engineering

496 Engineering Thermodynamics MCQs in Engineering with answers & explanations. Page 19. Practice objective questions for competitive exams, interviews & sel… Use the answer toggle below to show or hide all solutions, tap an option to check one question, or open a question for its own page.

Page 19 of 25

Show answers

Answers hidden — tap an option or use “View Answer” on each question.

361

Engineering Thermodynamics MCQs: 496 Questions & Answers in Engineering

In above question the heat supplied & efficiency respectively are

The flow through turbine on a Mollier chart is represented by

Due to which of the following reasons the Carnot cycle cannot be realised in actual practice?

The latent enthalpy of vapourisation at critical point is

Above critical point, a substance exists as

Triple point of a pure substance is a point at which

Which of the following cycles is used in thermal power plants?

In a Carnot engine, when the working substance rejects its heat to sink, the temperature of sink

……… is the ratio of actual cycle efficiency to that of the ideal cycle efficiency

Which of the following is used as a working substance for a Carnot cycle?

All actual heat transfer processes are

Which of the following can be a cause of irreversibility?

Free expansion is irreversible.

The continual motion of a movable device in the complete absence of friction is known as

The friction present in moving devices makes a process reversible.

Which of the following is irreversible?

Irreversibility can be distinguished in how many types?

A process will be reversible if it has

The external irreversibility occurs at the system boundary.

Study tips for Engineering Thermodynamics