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Engineering Thermodynamics

Engineering Thermodynamics
The unit of energy is S. I. units is

Joule meter (Jm)
Joule/meter (J/m)
Joule (J)
Watt (W)

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Engineering Thermodynamics
1 kgf/cm² is equal to

Zero mm Hg
735.6 mm Hg
1 mm Hg
760 mm Hg

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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)

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

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Engineering Thermodynamics
When the gas is heated at constant pressure, the heat supplied

Increases the temperature of the gas
Increases the internal energy of the gas
Does some external work during expansion
Both (B) and (C)

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Engineering Thermodynamics
Specific heat of air at constant pressure is equal to

0.24
0.21
0.17
1

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Engineering Thermodynamics
The efficiency and work ratio of a simple gas turbine cycle are

Very high
High
Low
Very low

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MORE MCQ ON Engineering Thermodynamics

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