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Engineering Thermodynamics

Engineering Thermodynamics
The value of specific heat at constant pressure (cp) is __________ that of at constant volume (cv).

Less than
More than
None of these
Equal to

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Engineering Thermodynamics
The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

Enthalpy
Entropy
External energy
Internal energy

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Engineering Thermodynamics
The throttling process is __________ process.

Reversible or irreversible
Irreversible
None of these
Reversible

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Engineering Thermodynamics
The atomic mass of sulphur is

16
12
14
32

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Engineering Thermodynamics
The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)

1 + (1/ rγ - 1)
1 - rγ - 1
1 - (1/ rγ - 1)
1 + rγ - 1

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Engineering Thermodynamics
For which of the following substances, the internal energy and enthalpy are the functions of temperature only

Saturated steam
Any gas
Water
Perfect gas

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MORE MCQ ON Engineering Thermodynamics

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