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Engineering Thermodynamics

Engineering Thermodynamics
If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to

Zero
Anywhere between zero and infinity
+ve
-ve

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Engineering Thermodynamics
The throttling process is __________ process.

Irreversible
Reversible or irreversible
None of these
Reversible

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

Heat rejected
Heat absorbed
Either heat absorbed or heat rejected
None of the listed here

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Engineering Thermodynamics
Work done in a free expansion process is

Positive
Maximum
Zero
Minimum

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Engineering Thermodynamics
The heat and work are mutually convertible. This statement is called ___ law of thermodynamics.

Third
Zeroth
Second
First

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Engineering Thermodynamics
The efficiency of Diesel cycle with decrease in cut-off

First increases and then decreases
First decreases and then increases
Increases
Decreases

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