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Engineering Thermodynamics

Engineering Thermodynamics
The fuel mostly used in steam boilers is

Non-coking bituminous coal
Coking bituminous coal
Brown coal
Peat

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Engineering Thermodynamics
The efficiency of Diesel cycle with decrease in cut-off

Decreases
Increases
First increases and then decreases
First decreases and then increases

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Engineering Thermodynamics
When coal is first dried and then crushed to a fine powder by pulverizing machine, the resulting fuel is called

None of these
Bituminous coal
Briquetted coal
Wood charcoal

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Engineering Thermodynamics
In an isothermal process, the internal energy

Remain constant
First increases and then decreases
Decreases
Increases

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Engineering Thermodynamics
One kilowatt is equal to

1 N-m/s
1000 N-m/s
100 N-m
1 × 106 N-m/s

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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

84 kJ
30 kJ
114 kJ
54 kJ

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MORE MCQ ON Engineering Thermodynamics

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