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Engineering Thermodynamics

Engineering Thermodynamics
In S. I. units, the value of the universal gas constant is

8314 J/kg mole-K
831.4 J/kg mole-K
8.314 J/kg mole-K
83.14 J/kg mole-K

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Engineering Thermodynamics
In a steady flow process, the ratio of

Work transfer is constant
Mass flow at inlet and outlet is same
Heat transfer is constant
All of these

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Engineering Thermodynamics
Which of the following cycles has maximum efficiency?

Stirling
Brayton
Rankine
Carnot

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Engineering Thermodynamics
The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant)

mcv (T2 - T1)
mR (T2 - T1)
mcp (T2 + T1)
mcp (T2 - T1)

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

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

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Engineering Thermodynamics
A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as

Diesel cycle
Otto cycle
Stirling cycle
Carnot cycle

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