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Engineering Thermodynamics

Engineering Thermodynamics
The heat energy stored in the gas and used for raising the temperature of the gas is known as

External energy
Internal energy
Molecular energy
Kinetic energy

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Engineering Thermodynamics
An adiabatic process is one in which

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

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Engineering Thermodynamics
Brayton cycle consists' of following four processes

Two isothermal and two isentropic
Two isentropic and two constant volumes
Two isentropic and two constant pressures
Two isentropic, one constant volume and one constant pressure

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Engineering Thermodynamics
The efficiency of Carnot cycle is maximum for

Gas engine
Steam engine
Petrol engine
Reversible engine

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Engineering Thermodynamics
Isochoric process is one in which

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

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Engineering Thermodynamics
In closed cycle gas turbine, the air is compressed

Polytropically
Isothermally
Isentropically
None of these

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MORE MCQ ON Engineering Thermodynamics

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