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Engineering Thermodynamics

Engineering Thermodynamics
The atomic mass of nitrogen is __________ oxygen.

More than
Equal to
None of these
Less than

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Engineering Thermodynamics
The following cycle is used for air craft refrigeration

Brayton cycle
Reversed Brayton cycle
Carnot cycle
Joule cycle

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Engineering Thermodynamics
Second law of thermodynamics defines

Work
Entropy
Heat
Internal energy

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Engineering Thermodynamics
The value of gas constant (R) in S. I. units is

28.7 J/kgK
2.87 J/kgK
0.287 J/kgK
287 J/kgK

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Engineering Thermodynamics
Compressed air coming out from a punctured football

Remains at the same temperature
Becomes hotter
Becomes cooler
May become hotter or cooler depending upon the humidity of the surrounding air

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Engineering Thermodynamics
Mixture of ice and water form a

Closed system
Isolated system
Heterogeneous system
Open system

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