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Internal Combustion Engines

Internal Combustion Engines
The thermal efficiency of petrol and gas engines is about

0.3
0.7
0.5
0.15

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Internal Combustion Engines
The scavenging efficiency of a four stroke cycle diesel engine is

Between 85 and 95%
Between 50 and 85%
Below 50%
Between 95 and 100%

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Internal Combustion Engines
All heat engines utilize

Calorific value of fuel
High heat value of oil
Net calorific value of oil
Low heat value of oil

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Internal Combustion Engines
The air standard efficiency of an I.C. engine depends on

Fuel used
Compression ratio
Speed of engine
None of these

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Internal Combustion Engines
The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of

Motoring test
Heat balance test
Morse test
Prony brake test

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Internal Combustion Engines
Alpha-methyl-naphthalene (C₁₁ H₁₀) has a cetane number of

100
120
0
50

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MORE MCQ ON Internal Combustion Engines

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