Theory of Machine
In order to balance the reciprocating masses,

Secondary forces and couples must be balanced
Both (A) and (B)
None of these
Primary forces and couples must be balanced

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Theory of Machine
Inertia force acts

None of the listed here
Along the direction of acceleration force
Opposite to the direction of acceleration force
Perpendicular to the acceleration force

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Theory of Machine
The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because

Both (A) and (B)
The Ackerman steering gear consists of turning pairs
Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels
The Ackerman steering gear is most economical

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