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Theory of Machine

Theory of Machine
The locus of a point on a thread unwound from a cylinder will be

Cycloidal
Involute
A straight line
A circle

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Theory of Machine
The direction of linear velocity of any point on a link with respect to another point on the same link is

None of the listed here
Parallel to the link joining the points
Perpendicular to the link joining the points
At 45° to the link joining the points

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Theory of Machine
The working depth of a gear is the radial distance from the

Addendum circle to the clearance circle
Pitch circle to the top of a tooth
Top of a tooth to the bottom of a tooth
Pitch circle to the bottom of a tooth

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Theory of Machine
The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

ω² (R - r₁) cosθ
ω² R cosθ
ω² (R - r₁) sinθ
ω² r₁ sinθ

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Theory of Machine
The magnitude of linear velocity of a point B on a link AB relative to point A is, (Where ω = Angular velocity of the link AB)

ω × AB
ω × (AB)²
ω² × AB
(ω × AB)²

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Theory of Machine
A completely constrained motion can be transmitted with.

2 links with pin joints
1 link with pin joints
4 links with pin joints
3 links with pin joints

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