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Engineering Thermodynamics

Engineering Thermodynamics
The calorific value of gaseous fuel is expressed in

kJ
kJ/m3
kJ/m2
kJ/kg

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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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Engineering Thermodynamics
One Joule (J) is equal to

1 kN-m
10 N-m/s
10 kN-m/s
1 N-m

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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)

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

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

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

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Engineering Thermodynamics
Petrol is distilled at

65° to 220°C
345° to 470°C
220° to 345°C
470° to 550°C

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