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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following gas is mostly used in town for street and domestic lighting and heating?

Producer gas
Mond gas
Coke oven gas
Coal gas

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Engineering Thermodynamics
A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is

-140 kJ
+60 kJ
-80 kJ
-40 kJ

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Engineering Thermodynamics
The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is

34.81 bar
25 bar
23.97 bar
26.03 bar

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Engineering Thermodynamics
Which of the following gas has the highest calorific value?

Producer gas
Blast furnace gas
Coal gas
Mond gas

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Engineering Thermodynamics
A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called

Polytropic process
Hyperbolic process
Isothermal process
Adiabatic process

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Engineering Thermodynamics
The first law of thermodynamics is the law of

Conservation of energy
Conservation of mass
Conservation of heat
Conservation of momentum

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