## Theory of Machine In a kinematic chain, a quaternary joint is equivalent to

Four binary joints
Two binary joints
One binary joint
Three binary joints

## Theory of Machine The direction of Coriolis component of acceleration is the direction

Along tangential acceleration
Along perpendicular to angular velocity
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

## Theory of Machine 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 = 0 and b is +ve
a is +ve and b is -ve
a is +ve and b is also +ve
a is +ve and b = 0

tan (α - φ)/tanα
tanα/tan (α - φ)
tan (α + φ)/tanα
tanα/tan (α +φ)

## Theory of Machine A chain comprises of 5 links having 5 joints. Is it kinematic chain?

Yes
Data are insufficient to determine it
It is a marginal case
No