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Engineering Thermodynamics

Engineering Thermodynamics
Heat and work are

Path functions
System properties
Intensive properties
Point functions

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Engineering Thermodynamics
The ultimate analysis of coal consists of the determination of the percentage of

All of the listed here
Carbon
Sulphur and ash
Hydrogen and nitrogen

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Engineering Thermodynamics
The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

Enthalpy
External energy
Internal energy
Entropy

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Engineering Thermodynamics
The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)

1 + (1/ rγ - 1)
1 + rγ - 1
1 - (1/ rγ - 1)
1 - rγ - 1

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Engineering Thermodynamics
The compression ratio for petrol engines is

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

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Engineering Thermodynamics
The efficiency of Diesel cycle depends upon

Pressure ratio
Temperature limits
Compression ratio
Cut-off ratio and compression ratio

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MORE MCQ ON Engineering Thermodynamics

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