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Theory of machines - Engineering

Q1:

In order to give a complete secondary balance of a multi-cylinder in-line engine,

A the algebraic sum of the secondary forces must be equal to zero

B the algebraic sum of the couples about any point in the plane of the secondary forces must be equal to zero

C both (a) and (b)

D none of these

ANS:C - both (a) and (b)

Explanation: No answer description is available.