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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following variables controls the physical properties of a perfect gas?

Temperature
Pressure
All of these
Volume

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Engineering Thermodynamics
The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)

1 - (1/ rγ - 1)
1 - rγ - 1
1 + (1/ rγ - 1)
1 + rγ - 1

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Engineering Thermodynamics
The same volume of all gases would represent their

Gas characteristic constants
Molecular weights
Densities
Specific weights

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Engineering Thermodynamics
Specific heat of air at constant pressure is equal to

0.24
0.21
0.17
1

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Engineering Thermodynamics
In a Carnot cycle, heat is transferred at

Constant volume
Constant pressure
Constant temperature
Constant enthalpy

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Engineering Thermodynamics
The natural petroleum may be separated into

Lubricating oil
Kerosene
Petrol
Fuel oil

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MORE MCQ ON Engineering Thermodynamics

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