Automobile Engineering in ME
The most accurate ignition system of a spark ignition engine is

Battery system
Electronic control unit system
Magneto and electronic system
Magneto system

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Automobile Engineering in ME
The purpose of a cylinder head gasket is to

Prevent the combustion gases from leaking from the joint between the cylinder block and the cylinder head
None of these
Removes impurities from cylinder head lubricating oil
Prevent engine oil from going into combustion chamber

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Automobile Engineering in ME
The auto ignition in a spark ignition engine means

Automatic ignition of the charge at the end of compression
Ignition induced to supplement the process of normal combustion
Ignition of the charge before the passage of flame front
Ignition induced by the passage of a spark

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