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Engineering Thermodynamics

Engineering Thermodynamics
A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is

30 kJ
84 kJ
54 kJ
114 kJ

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Engineering Thermodynamics
One watt is equal to

1 Nm/hr
1 Nm/s
1 N/m
1 kNm/hr

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Engineering Thermodynamics
The fuel mostly used in blast furnace for extracting pig iron from iron ores is

Soft coke
Bituminous coal
Pulverized coal
Hard coke

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Engineering Thermodynamics
The natural solid fuel is

Wood
Pulverised coal
Coke
Anthracite coal

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Engineering Thermodynamics
The value of n = 1 in the polytropic process indicates it to be

Adiabatic process
Isothermal process
Reversible process
Irreversible process

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Engineering Thermodynamics
Which of the following laws is applicable for the behaviour of a perfect gas?

Gay Lussac’s law
Boyle's law
All of these
Charles ‘law

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MORE MCQ ON Engineering Thermodynamics

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