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Engineering Thermodynamics

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)

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

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Engineering Thermodynamics
If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle

Less
Equal
Depends on other factors
More

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Engineering Thermodynamics
Kinetic energy of the molecules in terms of absolute temperature (T) is proportional to

J²
J
Vr
T

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Engineering Thermodynamics
In closed cycle gas turbine, the air is compressed

Polytropically
Isentropically
Isothermally
None of these

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Engineering Thermodynamics
The fuel mostly used in blast furnace for extracting pig iron from iron ores is

Bituminous coal
Pulverized coal
Hard coke
Soft coke

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Engineering Thermodynamics
A sudden fall in the barometer reading is a sign of approaching

Fine weather
Cold wave
Storm
Rains

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MORE MCQ ON Engineering Thermodynamics

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