Q. The function of crankcase in two stroke petrol engine?

A
It holds engine lubricating oil
B
It forms a pressurized chamber for air fuel mixture
C
It holds exhaust gas after combustion
D
None of these
Solution:

In two stroke petrol engine the air fuel mixture will be supplied to cylinder from crankcase via transfer port. This mixture get pressurized inside the crankcase due to the rotation of crank shaft.

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