** Question No : 8**

The direction of Coriolis component of acceleration is the direction

Of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link

Along the centripetal acceleration

Along tangential acceleration

Along perpendicular to angular velocity

** Question No : 9**

The total number of instantaneous centres for a mechanism consisting of n links are

n/2

n

n - 1

n(n - 1)/2

** Question No : 10**

The tendency of a body to resist change from rest or motion is known as

Mass

Friction

Inertia

Resisting force

** Question No : 11**

A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard?

All points of the disc have the same velocity

The centre of the disc has zero acceleration

The centre of the disc has centrifugal acceleration

The point on the disc making contact with the plane surface has zero acceleration

** Question No : 12**

A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when

a is +ve and b = 0

a = 0 and b is +ve

a is +ve and b is -ve

a is +ve and b is also +ve

** Question No : 13**

A completely constrained motion can be transmitted with.

1 link with pin joints

2 links with pin joints

3 links with pin joints

4 links with pin joints

** Question No : 14**

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

A straight line

A circle

Involute

Cycloidal