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Engineering Thermodynamics

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

None of these
0°C
273 K
-273°C

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Engineering Thermodynamics
For same compression ratio and for same heat added

Otto cycle is more efficient than Diesel cycle
Both Otto and Diesel cycles are equally efficient
Efficiency depends on other factors
Diesel cycle is more efficient than Otto cycle

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Engineering Thermodynamics
The same volume of all gases would represent their

Specific weights
Densities
Gas characteristic constants
Molecular weights

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

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

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Engineering Thermodynamics
The value of the product of molecular weight and the gas characteristic constant for all the gases in M.K.S. unit is

29.27 kgfm/mol °K
427 kgfm/mol °K
8314 kgfm/mol °K
848 kgfm/mol °K

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Engineering Thermodynamics
Which of the following is the extensive property of a thermodynamic system?

Volume
Density
Temperature
Pressure

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