Theory of Machine
The maximum fluctuation of speed is the

Variations of speed above and below the mean resisting torque line
Difference of minimum fluctuation of speed and the mean speed
Sum of maximum and minimum speeds
Difference of the maximum and minimum speeds

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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 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 rear wheels increases and on the front wheels decreases
The reaction on the front wheels increases and on the rear wheels decreases

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Theory of Machine
Which of the following statements regarding laws governing the friction between dry surfaces are correct?

The friction force is dependent on the materials of the contact surfaces.
The friction force is independent of me area of contact.
The friction force is directly proportional to the normal force.
All of these

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