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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency of Diesel cycle increases with

Increase in cut-off
Decrease in cut-off
None of these
Constant cut-off

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Engineering Thermodynamics
General gas equation is

PV=KiRT
PV=nRT
PV=mRT
PV = C

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Engineering Thermodynamics
When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel, the process is known as __________ of fuel.

None of these
Atomization
Combustion
Carbonization

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Engineering Thermodynamics
The compression ratio for petrol engines is

5 to 8
3 to 6
15 to 30
10 to 20

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Engineering Thermodynamics
Which of the following quantities is not the property of the system?

Specific volume
Pressure
Temperature
Heat

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Engineering Thermodynamics
A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is

Not possible
Cost will be very high
Theoretically possible
May be possible with lot of sophistications

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