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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency of a Carnot engine depends on

Size of engine
Working substance
Design of engine
Temperatures of source and sink

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Engineering Thermodynamics
The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.

Equal to
Greater than
None of these
Less than

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Engineering Thermodynamics
The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called

Specific heat at constant pressure
Kilo Joule
None of these
Specific heat at constant volume

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Engineering Thermodynamics
Compressed air coming out from a punctured football

May become hotter or cooler depending upon the humidity of the surrounding air
Becomes cooler
Becomes hotter
Remains at the same temperature

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Engineering Thermodynamics
The compression ratio is the ratio of

Swept volume to total volume
Swept volume to clearance volume
Total volume to swept volume
Total volume to clearance volume

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Engineering Thermodynamics
Isochoric process is one in which

Very little mechanical work is done by the system
All parameters remain constant
Free expansion takes place
No mechanical work is done by the system

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MORE MCQ ON Engineering Thermodynamics

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