Automobile Engineering in ME
In a four speed four stroke Diesel engine, the intake valve

opens at T.D.C. and closes at B.D.C.
not listed here
opens at 20° before T.D.C. and closes at 35° after B.D.C.
opens at 10° after T.D.C. and closes at 20° before B.D.C.

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Automobile Engineering in ME
In which of the following conditions, the idle CO percentage should be measured with the vehicle?

Headlights are switched on
Headlights and other lights are switched off
Headlights and other electrical devices are switched off
Headlights and other electrical devices are switched on

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