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Engineering Thermodynamics

Engineering Thermodynamics
The compression ratio for petrol engines is

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

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Engineering Thermodynamics
According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.

None of these
Remains constant
Increases
Decreases

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Engineering Thermodynamics
One kilowatt is equal to

1000 N-m/s
1 × 106 N-m/s
1 N-m/s
100 N-m

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Engineering Thermodynamics
The work ratio of simple gas turbine cycle depends upon

Pressure ratio
Maximum cycle temperature
All of these
Minimum cycle temperature

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Engineering Thermodynamics
The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to

1
∝
γ

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Engineering Thermodynamics
When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called

Zeroth law of thermodynamics
Kelvin Planck's law
Second law of thermodynamics
First law of thermodynamics

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