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Theory of Machine

Theory of Machine
If the pressure angle is __________, a reciprocating follower will jam in its bearings.

Small
Large
Too large
Too small

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

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

Cylindrical pair
Rolling pair
Turning pair
Sliding pair

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Theory of Machine
The equation of motion for a single degree of freedom system with viscous damping is 4(dx²/dt²) + 9(dx/dt) + 16x. The damping ratio of the system is

30195
44082
9/128
44090

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Theory of Machine
The Whitworth quick return motion mechanism is formed in a slider crank chain when the

Coupler link is fixed
Slider is a fixed link
Smallest link is a fixed link
Longest link is a fixed link

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Theory of Machine
Cam size depends upon

Base circle
Outer circle
Prime circle
Pitch circle

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