Theory of Machine
The example of rolling pair is

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

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
Effort of a governor is the

Work-done at the sleeve for maximum equilibrium speed
Mean force exerted at the sleeve for maximum equilibrium speed
Mean force exerted at the sleeve for a given percentage change of speed
None of these

ANSWER DOWNLOAD EXAMIANS APP