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Engineering Thermodynamics

Engineering Thermodynamics
The absolute zero pressure can be attained at a temperature of

-273°C
273 K
None of these
0°C

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Engineering Thermodynamics
The value of one bar (in S. I. units) is equal to

1 × 103 N/m2
1 × 104 N/m2
1 × 105 N/m2
1 × 102 N/m2

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Engineering Thermodynamics
One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to

1400 K
1200 K
800 K
1000 K

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Engineering Thermodynamics
The more effective way of increasing efficiency of Carnot engine is to

Decrease lower temperature
Decrease higher temperature
Increase lower temperature
Increase higher temperature

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Engineering Thermodynamics
The state of a substance whose evaporation from its liquid state is complete, is known as

Air
Vapour
Perfect gas
Steam

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Engineering Thermodynamics
When a gas is heated, change takes place in

Pressure
Temperature
Volume
All of the listed here

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MORE MCQ ON Engineering Thermodynamics

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