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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency of a Carnot engine depends on

Temperatures of source and sink
Working substance
Design of engine
Size of engine

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Engineering Thermodynamics
One molecule of oxygen is __________ times heavier than the hydrogen atom.

14
32
16
12

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Engineering Thermodynamics
Which of the following processes are thermodynamically reversible?

Throttling
Free expansion
Constant volume and constant pressure
Isothermal and adiabatic

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Engineering Thermodynamics
Which of the following cycles has maximum efficiency?

Brayton
Rankine
Stirling
Carnot

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Engineering Thermodynamics
Which of the following variables controls the physical properties of a perfect gas?

Volume
Temperature
Pressure
All of these

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Engineering Thermodynamics
The absolute zero pressure will be

At sea level
At the temperature of - 273 K
When molecular momentum of the system becomes zero
At the center of the earth

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MORE MCQ ON Engineering Thermodynamics

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