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Engineering Thermodynamics

Engineering Thermodynamics
Barometric pressure is equal to

735.6 mm Hg
1 mm Hg
760 mm Hg
Zero mm Hg

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Engineering Thermodynamics
In a Carnot cycle, heat is transferred at

Constant temperature
Constant volume
Constant pressure
Constant enthalpy

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Engineering Thermodynamics
Charles' law states that all perfect gases change in volume by __________ of its original volume at 0°C for every 1°C change in temperature, when pressure remains constant.

1/27th
1/93th
1/273th
1/173th

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Engineering Thermodynamics
For which of the following substances, the gas laws can be used with minimum error

Superheated steam
Dry steam
Saturated steam
Wet steam

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Engineering Thermodynamics
If the value of n = 0 in the equation pvn = C, then the process is called

Adiabatic process
Constant pressure process
Constant volume process
Isothermal process

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

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MORE MCQ ON Engineering Thermodynamics

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