Exercise: Thermodynamics

Questions for: Thermodynamics

When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
A:
zero
B:
1/5
C:
4/5
D:
1
Answer: A
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Stirling and Ericsson cycles are
A:
reversible cycles
B:
irreversible cycles
C:
semi-reversible cycles
D:
quasi-static cycles
Answer: A
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The constant pressure, constant volume and constant pvn processes are regarded as irreversible process.
A:
True
B:
False
C:
D:
Answer: A
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The specific heat of water is
A:
1.817
B:
2512
C:
4.187
D:
none of these
Answer: C
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The absolute zero temperature is taken as
A:
-273°C
B:
273°C
C:
237°F
D:
-237°F
Answer: A
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