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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following is an irreversible cycle?

Carnot
Stirling
None of these
Ericsson

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Engineering Thermodynamics
The heating of a gas at constant pressure is governed by

Avogadro's law
Gay-Lussac law
Boyle's law
Charles' law

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

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

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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)

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

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Engineering Thermodynamics
One watt is equal to

1 kNm/hr
1 N/m
1 Nm/s
1 Nm/hr

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Engineering Thermodynamics
The general law for the expansion or compression of gases, is

pv = m R T
pvγ = C
pv = C
pvn = C

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