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Engineering Thermodynamics

Engineering Thermodynamics
General gas equation is

PV = C
PV=mRT
PV=nRT
PV=KiRT

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Engineering Thermodynamics
Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant)

cp - cv = R
cv/ cp =R
Both (B) and (C)
cv = R/ γ-1

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Engineering Thermodynamics
A definite area or a space where some thermodynamic process takes place is known as

Thermodynamic process
Thermodynamic cycle
Thermodynamic law
Thermodynamic system

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Engineering Thermodynamics
The efficiency of Diesel cycle approaches to Otto cycle efficiency when

Cut-off is zero
Cut-off is increased
Cut-off is constant
Cut-off is decreased

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Engineering Thermodynamics
When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency

43834
43835
2
Zero

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Engineering Thermodynamics
The ratio of two specific heats of air is equal to

0.24
0.1
1.41
0.17

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MORE MCQ ON Engineering Thermodynamics

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