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Theory of Machine

Theory of Machine
The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is

l = 2p - 5
l = 2p - 2
l = 2p - 4
l = 2p - 3

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Theory of Machine
In a radial cam, the follower moves

In a direction parallel to the cam axis
Along the cam axis
In a direction perpendicular to the cam axis
In any direction irrespective of the cam axis

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Theory of Machine
According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centers lie on A. A triangle

A point
A straight line
Two lines
A triangle

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Theory of Machine
The velocity of the rubbing surface __________ with the distance from the axis of the bearing.

Remain same
Decreases
Increases
None of these

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Theory of Machine
When a slider moves on a fixed link having curved surface, their instantaneous centre lies

At the pin joint
On their point of contact
At the centre of curvature
At the centre of circle

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Theory of Machine
The fundamental equation for correct steering is (where φ and α = Angle through which the axis of the outer wheel and inner wheel turns respectively, c = Distance between the pivots of the front axles, and d = Wheel base)

cotφ - cotα = c/b
tanφ + cotα = b/c
sinφ + sinα = b/c
cosφ - sinα = c/b

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