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Engineering Thermodynamics

Engineering Thermodynamics
The value of specific heat at constant pressure (cp) is __________ that of at constant volume (cv).

More than
None of these
Equal to
Less than

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Engineering Thermodynamics
When wood is heated with a limited supply of air to a temperature not less than 280°C, the resulting fuel is

Coke
Wood charcoal
Bituminous coal
Briquetted coal

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Engineering Thermodynamics
The value of gas constant (R) in S. I. units is

287 J/kgK
2.87 J/kgK
0.287 J/kgK
28.7 J/kgK

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Engineering Thermodynamics
When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency

43834
Zero
43835
2

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Engineering Thermodynamics
Which of the following is an irreversible cycle?

Ericsson
Stirling
Carnot
None of these

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Engineering Thermodynamics
A gas is compressed in a cylinder by a movable piston to a volume one half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be

300,000 Nm
300 Nm
30 Nm
3000 Nm

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