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Engineering Thermodynamics

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

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

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Engineering Thermodynamics
Steam coal is a

Pulverized coal
Coking bituminous coal
Non-coking bituminous coal
Brown coal

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Engineering Thermodynamics
Work done in an adiabatic process between a given pair of end states depends on

Particular adiabatic process
The end states only
The value of heat transferred
The value of index ‘n’

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Engineering Thermodynamics
The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to

∝
γ
1

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Engineering Thermodynamics
The hard coke is obtained when carbonization of coal is carried out at

900° to 1100°C
500° to 700°C
300° to 500°C
700° to 900°C

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Engineering Thermodynamics
The hyperbolic process is governed by

Gay-Lussac law
Boyle's law
Charles' law
Avogadro's law

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MORE MCQ ON Engineering Thermodynamics

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