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Engineering Thermodynamics

Engineering Thermodynamics
One kg of carbon produces ___ kg of carbon dioxide.

4/11
11/7
3/7
11/3

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Engineering Thermodynamics
The specific heat of air increases with increase in

Both pressure and temperature
Pressure
Variation of its constituents
Temperature

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Engineering Thermodynamics
1 kgf/cm² is equal to

1 mm Hg
760 mm Hg
Zero mm Hg
735.6 mm Hg

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Engineering Thermodynamics
The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant)

mcv (T2 - T1)
mcp (T2 + T1)
mR (T2 - T1)
mcp (T2 - T1)

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

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

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Engineering Thermodynamics
The efficiency of Carnot cycle depends upon

Pressure ratio
Volume compression ratio
Cut-off ratio and compression ratio
Temperature limits

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