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Engineering Thermodynamics

Engineering Thermodynamics
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)

1 - (1/r) γ - 1/ γ
1 - (1/r) γ/γ - 1
1 - rγ - 1
rγ - 1

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Engineering Thermodynamics
The mass of excess air supplied is equal to

(100/23) × Mass of excess oxygen
(23/100) × Mass of excess oxygen
(23/100) × Mass of excess carbon
(100/23) × Mass of excess carbon

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Engineering Thermodynamics
If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant

Temperature
Pressure
Volume
Enthalpy

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Engineering Thermodynamics
1 kgf/cm² is equal to

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

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Engineering Thermodynamics
One watt is equal to

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

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Engineering Thermodynamics
One Joule (J) is equal to

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

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MORE MCQ ON Engineering Thermodynamics

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