## Theory of Machine A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration of B with respect to A will be equal to

Vector sum of radial component and Coriolis component
Vector sum of tangential component and Coriolis component
Vector sum of radial component and tangential component
Vector difference of radial component and tangential component

## Theory of Machine The instantaneous centers which vary with the configuration of mechanism are called

None of these
Neither fixed nor permanent instantaneous centers
Permanent instantaneous centers
Fixed instantaneous centers

## Theory of Machine The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line

At 45° to line as per (A)
Not possible to determine with these data
Joining the corresponding points
Perpendicular to line as per (A)

## Theory of Machine The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at

The point of contact
The center of the disc
The point on the circumference situated vertically opposite to the contact point
An infinite distance on the plane surface

895/N²
8950/N²
8.95/N²
89.5/N²

## Theory of Machine The method of direct and reverse cranks is used in engines for

Balancing of forces and couples
The control of speed fluctuations
Kinematic analysis
Vibration analysis