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Engineering Thermodynamics

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

Temperature
Volume
Pressure
All of the listed here

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Engineering Thermodynamics
The unit of energy in S.I. units is

Joule
joule/s
joule/m
watt

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Engineering Thermodynamics
The general law for the expansion or compression of gases, is

pv = C
pvn = C
pvγ = C
pv = m R T

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Engineering Thermodynamics
Work done is zero for the following process

Constant volume
Free expansion
All of the listed here
Throttling

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Engineering Thermodynamics
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)

rγ - 1
1 - (1/r) γ/γ - 1
1 - (1/r) γ - 1/ γ
1 - rγ - 1

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Engineering Thermodynamics
The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle)

1 + (T2/T1)
1 - (T2/T1)
1 - (T1/T2)
(T1/T2) - 1

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MORE MCQ ON Engineering Thermodynamics

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