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Engineering Thermodynamics

Engineering Thermodynamics
On volume basis, air contains following parts of oxygen

21
77
23
25

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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

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

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Engineering Thermodynamics
The efficiency of Carnot cycle is maximum for

Gas engine
Petrol engine
Steam engine
Reversible engine

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Engineering Thermodynamics
One Joule (J) is equal to

1 N-m
10 kN-m/s
1 kN-m
10 N-m/s

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Engineering Thermodynamics
In an extensive property of a thermodynamic system

Extensive heat is transferred
None of the listed here
Extensive energy is utilized
Extensive work is done

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Engineering Thermodynamics
The efficiency of Joule cycle is

Greater than Carnot cycle
None of these
Equal to Carnot cycle
Less than Carnot cycle

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