Theory of Machine
The example of rolling pair is

Ball bearing and roller bearing
Lead screw of a lathe
Ball and socket joint
Bolt and nut

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
Which of the following statement is correct for involute gears?

The variation in centre distance of shafts increases radial force.
The pressure angle is constant throughout the teeth engagement.
The interference is inherently absent.
A convex flank is always in contact with concave flank.

ANSWER DOWNLOAD EXAMIANS APP