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Engineering Thermodynamics

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

pv = m R T
pvγ = C
pv = C
pvn = C

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Engineering Thermodynamics
For same compression ratio and for same heat added

Both Otto and Diesel cycles are equally efficient
Efficiency depends on other factors
Diesel cycle is more efficient than Otto cycle
Otto cycle is more efficient than Diesel cycle

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

Second
Minute
Hour
Day

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Engineering Thermodynamics
The fuel mostly used in cement industry and in metallurgical processes is

Wood charcoal
Pulverized coal
Bituminous coke
Coke

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Engineering Thermodynamics
A cycle consisting of two isothermal and two isentropic processes, is known as

Ericsson cycle
Stirling cycle
Joule cycle
Carnot cycle

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Engineering Thermodynamics
Work done is zero for the following process

All of the listed here
Free expansion
Throttling
Constant volume

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MORE MCQ ON Engineering Thermodynamics

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