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Theory of Machine

Theory of Machine
A pulley and belt in a belt drive form a

Rolling pair
Turning pair
Cylindrical pair
Sliding pair

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Theory of Machine
When the nature of contact between the elements of a pair is such that it can only slide relative to the other, the pair is known as a

Spherical pair
Turning pair
Sliding pair
Screw pair

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Theory of Machine
The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r₁ = Minimum radius of the cam, and θ = Angle turned through by the cam)

(R - r₁) (1 - sinθ)
R (1 - cosθ)
R (1 - sinθ)
(R - r₁) (1 - cosθ)

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Theory of Machine
At the nodal point in a shaft, the amplitude for torsional vibration will be

Minimum
Zero
Maximum
Infinity

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Theory of Machine
For a kinematic chain to be considered as mechanism

There is no such criterion
None of the links should be fixed
One link should be fixed
Two links should be fixed

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Theory of Machine
A mechanism consisting of four links is called a __________ mechanism.

Compound
Binary
None of these
Simple

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