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Internal Combustion Engines

Internal Combustion Engines
In loop scavenging, the top of the piston is

Slanted
Flat
Depressed
Contoured

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Internal Combustion Engines
In order to eliminate knocking in compression ignition engines, there should be

Low compression ratio
Late auto-ignition
Short delay period
High self ignition temperature of fuel

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Internal Combustion Engines
Compression loss in I.C engines occurs due to

All of these
Use of thick head gasket
Leaking piston rings
Clogged air inlet slots

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Internal Combustion Engines
The increase of efficiency of a compression ignition engine, as the load decreases, is due to

Qualitative governing
Quantitative governing
Hit and miss governing
Higher maximum temperature

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Internal Combustion Engines
In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of

500°C
1000°C
2000°C
250°C

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Internal Combustion Engines
A diesel engine has compression ratio from

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

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MORE MCQ ON Internal Combustion Engines

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