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Engineering Thermodynamics

Engineering Thermodynamics
The specific heat of air increases with increase in

Temperature
Variation of its constituents
Both pressure and temperature
Pressure

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Engineering Thermodynamics
Which of the following cycles is not a reversible cycle?

Carnot
None of the listed here
Ericsson
Stirling

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Engineering Thermodynamics
An adiabatic wall is one which

Prevents thermal interaction
Permits thermal interaction
Encourages thermal interaction
Discourages thermal interaction

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Engineering Thermodynamics
The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion)

(v1 + v2)/v1
(v1 + v2)/v2
v2/v1
v1/v2

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Engineering Thermodynamics
Which law states that the internal energy of a gas is a function of temperature?

Charles' law
There is no such law
Joule's law
Boyle's law

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Engineering Thermodynamics
One kg of ethylene (C2H4) requires 2 kg of oxygen and produces 22/7 kg of carbon dioxide and ___ kg of water or steam.

11/4
7/4
9/7
11/7

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