Engineering Thermodynamics MCQ Questions & Answers

1

The area under the temperature-entropy curve (T - s curve) of any thermodynamic process represents

A) Heat absorbed B) Heat rejected C) Either (A) or (B) D) None of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

2

The main cause for the irreversibility is

A) Unrestricted expansion B) Mechanical and fluid friction C) Heat transfer with a finite temperature difference D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

3

The isothermal and adiabatic processes are regarded as

A) Reversible process B) Irreversible process C) Reversible or irreversible process D) None of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

4

An adiabatic process is one in which

A) The temperature of the gas changes B) No heat enters or leaves the gas C) The change in internal energy is equal to the mechanical work done D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

5

Isochoric process is one in which

A) Free expansion takes place B) Very little mechanical work is done by the system C) No mechanical work is done by the system D) All parameters remain constant

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

6

Kelvin Planck's law deals with

A) Conservation of heat B) Conservation of work C) Conversion of heat into work D) Conversion of work into heat

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

7

Kelvin-Planck's law deals with

A) Conservation of work B) Conservation of heat C) Conversion of heat into work D) Conversion of work into heat

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

8

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

A) Law of equipartition of energy B) Law of degradation of energy C) Law of conservation of energy D) None of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

9

Intensive property of a system is one whose value

A) Depends on the mass of the system, like volume B) Does not depend on the mass of the system, like temperature, pressure, etc. C) Is not dependent on the path followed but on the state D) Is dependent on the path followed and not on the state

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

10

Extensive property of a system is one whose value

A) Depends on the mass of the system like volume B) Does not depend on the mass of the system, like temperature, pressure, etc. C) Is not dependent on the path followed but on the state D) Is dependent on the path followed and not on the state

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Engineering Thermodynamics MCQ Questions & Answers | Mechanical Engineering