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Engineering Thermodynamics

Engineering Thermodynamics
The entropy of water at 0°C is assumed to be

2
-1
1

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Engineering Thermodynamics
The change of entropy, when heat is absorbed by the gas, is

Positive or negative
Positive
Negative
None of these

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Engineering Thermodynamics
In an extensive property of a thermodynamic system

Extensive energy is utilized
None of the listed here
Extensive work is done
Extensive heat is transferred

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Engineering Thermodynamics
The principal constituents of a fuel are

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

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Engineering Thermodynamics
The polytropic index (n) is given by

log [(p1v1)/(p2v2)]
log (v1/ v2)/ log (p1/p2)
log (p1p2)/log (v1v2)
log (p2/ p1)/log (v1/ v2)

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Engineering Thermodynamics
For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

Otto cycle, Diesel cycle, Dual cycle
Dual cycle, Otto cycle, Diesel cycle
Diesel cycle, Otto cycle, Dual cycle
Dual cycle, Diesel cycle, Otto cycle

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MORE MCQ ON Engineering Thermodynamics

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