Mechanical Engineering - Thermodynamics

6. 

One Joule (J) is equal to

A. 1 N-m
B. 1 kN-m
C. 10 N-m/s
D. 10 kN-m/s

Answer: Option A

Explanation:

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7. 

When the expansion or compression takes place according to the law pvn = C, the process is known as

A. isothermal process
B. adiabatic process
C. hyperbolic process
D. polytropic process

Answer: Option D

Explanation:

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8. 

The entropy is a point function and thus it is a property of the same.

A. Correct
B. Incorrect

Answer: Option A

Explanation:

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9. 

The state of a substance whose evaporation from its liquid state is complete, is known as

A. vapour
B. perfect gas
C. air
D. steam

Answer: Option B

Explanation:

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10. 

An open cycle gas turbine works on

A. Carnot cycle
B. Otto cycle
C. Joule's cycle
D. Stirling cycle

Answer: Option C

Explanation:

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