Mechanical Engineering - Thermodynamics

41.
The constant pressure, constant volume and constant pvn processes are regarded as irreversible process.
True
False
Answer: Option
Explanation:
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42.
Stirling and Ericsson cycles are
reversible cycles
irreversible cycles
semi-reversible cycles
quasi-static cycles
Answer: Option
Explanation:
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43.
When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
zero
1/5
4/5
1
Answer: Option
Explanation:
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44.
A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as
reversible cycle
irreversible cycle
thermodynamic cycle
none of these
Answer: Option
Explanation:
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45.
An isothermal process is governed by
Boyle's law
Charles' law
Gay-Lussac law
Avogadro's law
Answer: Option
Explanation:
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