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Engineering Thermodynamics

Engineering Thermodynamics
The value of gas constant (R) in S. I. units is

287 J/kgK
0.287 J/kgK
2.87 J/kgK
28.7 J/kgK

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Engineering Thermodynamics
Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle

Heat rejection is lower
Maximum temperature is higher
Expansion and compression are isentropic
Combustion is at constant volume

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Engineering Thermodynamics
No liquid can exist as liquid at

Centre of earth
273°K
Vacuum
Zero pressure

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Engineering Thermodynamics
In an ideal gas turbine plant, it is assumed that the compression and expansion processes are

None of these
Isothermal
Isentropic
Polytropic

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Engineering Thermodynamics
The natural solid fuel is

Coke
Wood
Anthracite coal
Pulverised coal

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Engineering Thermodynamics
The principal constituents of a fuel are

Oxygen and hydrogen
Sulphur and hydrogen
Sulphur and oxygen
Carbon and hydrogen

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MORE MCQ ON Engineering Thermodynamics

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