Mechanical Engineering - Thermodynamics

16. 

Which of the following is an intensive property of a thermodynamic system?

A. Volume
B. Temperature
C. Mass
D. Energy

Answer: Option B

Explanation:

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17. 

A triatomic molecule consists of __________ atoms.

A. one
B. two
C. three
D. four

Answer: Option C

Explanation:

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18. 

The main cause for the irreversibility is

A. mechanical and fluid friction
B. unrestricted expansion
C. heat transfer with a finite temperature difference
D. all of the above

Answer: Option D

Explanation:

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19. 

A cycle consisting of __________ and two isothermal processes is known as Stirling cycle.

A. two constant pressure
B. two constant volume
C. two isentropic
D. one constant pressure, one constant volume

Answer: Option B

Explanation:

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20. 

The heat and mechanical energies are mutually convertible. This statement was established by

A. Boyle
B. Charles
C. Joule
D. none of these

Answer: Option C

Explanation:

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