Chemically correct air fuel ratio by weight

Chemically correct air fuel ratio by volume

Actual air fuel ratio for maximum efficiency

None of the above

Equal to

Below

Above

None of the above

A fine fuel spry mixed with air is ignited by the heat of compression, which is at a high pressure.

The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug.

The fuel is first evaporated after passing through a carburetor and is mixed with air before ignition.

All of the above

Beginning of suction stroke

End of suction stroke

End of compression stroke

None of these

Inject fuel in a chamber of high pressure at the end of compression stroke

Inject fuel at a high velocity to facilitate atomization

Ensure that penetration is not high

All of the above