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Engineering Thermodynamics

Engineering Thermodynamics
The heat and mechanical energies are mutually convertible. This statement was established by

Boyle
Charles
Joule
None of these

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Engineering Thermodynamics
The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will

Decrease
Remain unchanged
Increase
Increase/decrease depending on application

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Engineering Thermodynamics
The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion)

(v1 + v2)/v1
v2/v1
(v1 + v2)/v2
v1/v2

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Engineering Thermodynamics
The efficiency of Ericsson cycle is __________ Carnot cycle.

Less than
Greater than
Equal to
None of these

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Engineering Thermodynamics
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are

Point functions
Path functions
Real functions
Cyclic functions

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

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

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