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Engineering Thermodynamics

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
The efficiency of Diesel cycle increases with

Increase in cut-off
Constant cut-off
None of these
Decrease in cut-off

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Engineering Thermodynamics
The same volume of all gases would represent their

Densities
Molecular weights
Specific weights
Gas characteristic constants

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Engineering Thermodynamics
The value of 1 mm of Hg is equal to

13.33 N/m2
133.3 N/m2
1333 N/m2
1.333 N/m2

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Engineering Thermodynamics
The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as

Atom
Compound
Molecule
Element

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Engineering Thermodynamics
The calorific value of gaseous fuel is expressed in

kJ
kJ/kg
kJ/m2
kJ/m3

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MORE MCQ ON Engineering Thermodynamics

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