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Engineering Thermodynamics

Engineering Thermodynamics
The first law of thermodynamics is the law of

Conservation of mass
Conservation of heat
Conservation of energy
Conservation of momentum

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Engineering Thermodynamics
Which of the following has the minimum atomic mass?

Carbon
Nitrogen
Oxygen
Sulphur

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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.

Combustion
Carbonization
Atomization
None of these

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Engineering Thermodynamics
The unit of length in S.I. units is

Meter
Kilometer
Centimeter
Millimeter

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Engineering Thermodynamics
Carnot cycle has maximum efficiency for

Diesel engine
Reversible engine
Petrol engine
Irreversible engine

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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

3000 Nm
300 Nm
30 Nm
300,000 Nm

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