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

Positive throughout
Positive during major portion of the stroke
Negative throughout
Negative during major portion of the stroke

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
A system of masses rotating in different parallel planes is in dynamic balance if the

Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero
Resultant couple is equal to zero
Resultant force is equal to zero
Resultant force and resultant couple are both equal to zero

ANSWER DOWNLOAD EXAMIANS APP