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Engineering Thermodynamics

Engineering Thermodynamics
For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

Equal to
Less than
None of these
Greater than

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Engineering Thermodynamics
An isothermal process is governed by

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

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Engineering Thermodynamics
One kg of ethylene (C2H4) requires 2 kg of oxygen and produces 22/7 kg of carbon dioxide and ___ kg of water or steam.

9/7
11/4
11/7
7/4

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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

Hyperbolic process
Polytropic process
Isothermal process
Adiabatic process

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Engineering Thermodynamics
First law of thermodynamics furnishes the relationship between

Heat, work and properties of the system
Various thermodynamic processes
Heat and work
Various properties of the system

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Engineering Thermodynamics
Which of the following can be regarded as gas so that gas laws could be applicable, within the commonly encountered temperature limits?

O₂, N₂, H₂, air
O₂, N₂, water vapour
O₂, N₂, steam, CO₂
SO₂, NH₃, CO₂, moisture

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