Automobile Engineering in ME
In a Diesel engine, the function of a fuel injector is to

Ignite the air-fuel mixture
Provide flame front for ignition
Mix the fuel and air
Spray atomized fuel in the cylinder

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Automobile Engineering in ME
The main feature of Macpherson strut suspension is that

The vertical size of the suspension can be made more compact
The assembly is slightly more complicated in design
The unsprung mass in lighter
Non vertical external forces are supported by the suspension arms

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Automobile Engineering in ME
The function of a proportioning control valve (PCV) in a brake system is to

Ensure that equal pressure is supplied to the front and rear brakes throughout every braking operation
Cause less brake fluid pressure to act on the rear brakes than on the front brakes when the fluid pressure exceeds a predetermined level
Cause less brake fluid pressure to act on the front brakes than on the rear brakes when the fluid pressure exceeds a predetermined level
Reduce the brake fluid pressure when the brakes approach their lockup point

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Automobile Engineering in ME
The ignition in a spark ignition engine takes place when the piston is

Leaving the T.D.C. position on its compression stroke
Exactly at the T.D.C. position on its compression stroke
Approaching the T.D.C. position on its compression stroke
Approaching the T.D.C position on its exhaust stroke

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