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Engineering Thermodynamics

Engineering Thermodynamics
On volume basis, air contains following parts of oxygen

21
23
25
77

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Engineering Thermodynamics
The hard coke is obtained when carbonization of coal is carried out at

900° to 1100°C
500° to 700°C
700° to 900°C
300° to 500°C

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Engineering Thermodynamics
One molecule of oxygen consists of __________ atoms of oxygen.

8
2
16
4

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Engineering Thermodynamics
The state of a substance whose evaporation from its liquid state is complete, is known as

Vapour
Steam
Air
Perfect gas

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Engineering Thermodynamics
When a gas is heated at constant pressure

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

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Engineering Thermodynamics
The compression ratio for petrol engines is

3 to 6
5 to 8
15 to 30
10 to 20

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MORE MCQ ON Engineering Thermodynamics

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