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Internal Combustion Engines

Internal Combustion Engines
A diesel engine has

3 valves
1 valve
4 valves
2 valves

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Internal Combustion Engines
The air-fuel ratio in petrol engines is controlled by

Injection
Controlling valve opening/closing
Carburetion
Governing

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Internal Combustion Engines
In compression ignition engines, swirl denotes a

None of the listed here
Radial motion of the gases in the chamber
Rotary motion of the gases in the chamber
Haphazard motion of the gases in the chamber

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Internal Combustion Engines
A higher compression ratio causes

Acceleration in the rate of combustion
Pre-ignition
Any one of these
Increase in detonation

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Internal Combustion Engines
The theoretically correct mixture of air and petrol is

10 : 1
20 : 1
15 : 1
25 : 1

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

0.20902777777778
0.042361111111111
0.41736111111111
0.62569444444444

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MORE MCQ ON Internal Combustion Engines

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