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Engineering Thermodynamics

Engineering Thermodynamics
Second law of thermodynamics defines

Heat
Work
Entropy
Internal energy

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Engineering Thermodynamics
For which of the following substances, the internal energy and enthalpy are the functions of temperature only

Any gas
Saturated steam
Perfect gas
Water

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Engineering Thermodynamics
An isothermal process is governed by

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

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Engineering Thermodynamics
A cycle consisting of two adiabatic and two constant pressure processes is known as

Otto cycle
Joule cycle
Stirling cycle
Ericsson cycle

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Engineering Thermodynamics
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)

rγ - 1
1 - (1/r) γ - 1/ γ
1 - (1/r) γ/γ - 1
1 - rγ - 1

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Engineering Thermodynamics
When the gas is heated at constant pressure, the heat supplied

Increases the internal energy of the gas
Increases the temperature of the gas
Does some external work during expansion
Both (B) and (C)

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MORE MCQ ON Engineering Thermodynamics

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