Theory of Machine
The relation l = (2/3).(j + 2) apply only to kinematic chains in which lower pairs are used. This may be used to kinematic chains in which higher pairs are used, but each higher pair may be taken as equivalent to

Two lower pairs and one additional link
Two lower pairs and two additional links
One lower pair and two additional links
Any one of these

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Theory of Machine
A motor car moving at a certain speed takes a left turn in a curved path. If the engine rotates in the same direction as that of wheels, men due to centrifugal force

The reaction on the rear wheels increases and on the front wheels decreases
The reaction on the outer wheels increases and on the inner wheels decreases
The reaction on me inner wheels increases and on the outer wheels decreases
The reaction on the front wheels increases and on the rear wheels decreases

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