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Engineering Thermodynamics

Engineering Thermodynamics
One molecule of oxygen consists of __________ atoms of oxygen.

4
16
2
8

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Engineering Thermodynamics
The fuel mostly used in cement industry and in metallurgical processes is

Bituminous coke
Wood charcoal
Coke
Pulverized coal

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Engineering Thermodynamics
In open cycle gas turbine plants

All of these
The indirect heat exchanger and cooler is avoided
A condenser is used
Direct combustion systems is used

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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)
mcp (T2 - T1)
mR (T2 - T1)

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Engineering Thermodynamics
For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

Greater than
Equal to
None of these
Less than

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Engineering Thermodynamics
If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle

Equal
More
Less
Depends on other factors

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