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Theory of Machine

Theory of Machine
Ackermann steering gear consists of

Sliding pairs
Turning pairs
Higher pairs
Rolling pairs

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Theory of Machine
Which of the following is an example of sliding pair?

Lead screw of a lathe with nut
Ball and a socket joint
Shaft with collars at both ends fitted into a circular hole
Piston and cylinder of a reciprocating steam engine

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Theory of Machine
The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line

Not possible to determine with these data
Perpendicular to line as per (A)
At 45° to line as per (A)
Joining the corresponding points

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Theory of Machine
The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.

Sum
Ratio
Product
Difference

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Theory of Machine
The lead screw of a lathe with nut forms a

Screw pair
Turning pair
Sliding pair
Rolling pair

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Theory of Machine
The example of lower pair is

Automobile steering gear
Shaft revolving in a bearing
All of these
Straight line motion mechanisms

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