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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following variables controls the physical properties of a perfect gas?

Volume
All of these
Pressure
Temperature

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Engineering Thermodynamics
The increase in entropy of a system represents

Increase in temperature
Increase in availability of energy
Degradation of energy
Decrease in pressure

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Engineering Thermodynamics
Absolute zero pressure will occur

At a temperature of 273°K
When molecular momentum of the system becomes zero
Under vacuum conditions
At sea level

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Engineering Thermodynamics
The heating of gas at constant volume is governed by

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

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Engineering Thermodynamics
Brayton cycle consists' of following four processes

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

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Engineering Thermodynamics
The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when

Process is isentropic
Process is isothermal
Process is isentropic and specific heat does not change with temperature
Flow is uniform and steady

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MORE MCQ ON Engineering Thermodynamics

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