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Engineering Thermodynamics

Engineering Thermodynamics
Work done in a free expansion process is

Zero
Minimum
Maximum
Positive

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Engineering Thermodynamics
Otto cycle consists of following four processes

Two isentropic and two constant pressures
Two isentropic, one constant volume and one constant pressure
Two isothermal and two isentropic
Two isentropic and two constant volumes

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Engineering Thermodynamics
Universal gas constant is defined as equal to product of the molecular weight of the gas and

Specific heat at constant volume
Gas constant
Specific heat at constant pressure
Ratio of two specific heats

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Engineering Thermodynamics
When a gas is heated at constant pressure

Both temperature and volume will increase
Its volume will increase
Neither temperature not volume will increase
Its temperature will increase

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Engineering Thermodynamics
If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be

80°C
40°C
20°C
0°C

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

12
16
14
32

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MORE MCQ ON Engineering Thermodynamics

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