Question

In a four stroke i.c. engine, the turning moment during the compression stroke is

Answer 1

In a four stroke I.C. engine, the turning moment during the compression stroke is
[A]. positive throughout
[B].
negative throughout @
[C]. positive during major portion of the stroke
[D]. negative during major portion of the stroke

Answer 2

 

In a four stroke I.C. engine, the turning moment during the compression stroke is

[A].positive throughout[B].negative throughout[C].positive during major portion of the stroke[D].negative during major portion of the stroke

Answer: Option B

Explanation:

It is negative throughout the 4 stroke except in the expansion or power stroke. In the power stroke it is positive.