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Engineering Thermodynamics

Engineering Thermodynamics
The compression ratio for Diesel engines is

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

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Engineering Thermodynamics
For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

Otto cycle, Diesel cycle, Dual cycle
Dual cycle, Diesel cycle, Otto cycle
Diesel cycle, Otto cycle, Dual cycle
Dual cycle, Otto cycle, Diesel cycle

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Engineering Thermodynamics
Entropy change depends on

Change of temperature
Heat transfer
Thermodynamic state
Mass transfer

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Engineering Thermodynamics
The hyperbolic process is governed by

Boyle's law
Gay-Lussac law
Avogadro's law
Charles' law

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

Equal to
Less than
Greater than
None of these

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Engineering Thermodynamics
An adiabatic process is one in which

No heat enters or leaves the gas
The temperature of the gas changes
All of these
The change in internal energy is equal to the mechanical work done

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MORE MCQ ON Engineering Thermodynamics

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