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Internal Combustion Engines

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

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

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Internal Combustion Engines
A petrol engine has compression ratio from

10 to 15
6 to 10
25 to 40
15 to 25

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Internal Combustion Engines
The injection pressure in a diesel engine is about

500 bar
10 bar
150 bar
100 bar

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Internal Combustion Engines
The operation of forcing additional air under pressure in the engine cylinder is known as

Supercharging
Scavenging
Turbulence
Pre-ignition

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Internal Combustion Engines
Combustion in compression ignition engines is

Heterogeneous
Laminar
Both (A) and (B)
Homogeneous

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Internal Combustion Engines
Air fuel ratio for idling speed of a petrol engine is approximately

0.20902777777778
0.042361111111111
0.62569444444444
0.41736111111111

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