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Theory of Machine

Theory of Machine
In a rigid link OA, velocity of 'A' w.r.t. 'O' will be

Along AO
Parallel to OA
At 45° to OA
Perpendicular to OA

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Theory of Machine
Peaucellier’s mechanism has

Four links
Six links
Eight links
Twelve links

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Theory of Machine
In a simple harmonic motion, the velocity vector with respect to displacement vector

Leads by 180°
Is in phase
Leads by 90°
Lags by 90°

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Theory of Machine
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A)

v²BA /AB
vBA /AB
vBA × AB
v²BA

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Theory of Machine
A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be

80 RPM
data are insufficient
90 RPM
100 RPM

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Theory of Machine
The dynamic friction is the friction experienced by a body, when the body

Is at rest
None of these
Is in motion
Just begins to slide over the surface of the other body

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