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Engineering Thermodynamics

Engineering Thermodynamics
The absolute zero pressure can be attained at a temperature of

-273°C
0°C
273 K
None of these

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Engineering Thermodynamics
Brayton cycle consists' of following four processes

Two isothermal and two isentropic
Two isentropic and two constant volumes
Two isentropic and two constant pressures
Two isentropic, one constant volume and one constant pressure

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Engineering Thermodynamics
The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

External energy
Entropy
Enthalpy
Internal energy

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Engineering Thermodynamics
The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will

Decrease
Remain unchanged
Increase
Increase/decrease depending on application

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

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

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Engineering Thermodynamics
Which of the following is not the intensive property?

Heat
Pressure
Temperature
Density

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