Machine Design
An Involute pinion and gear are in mesh. If both have the same size of addendum, then there will be interference between the

Flanks of both gear and pinion
Tip of the gear and flank of pinion
Tip of the pinion and flank of gear
Tip of both gear and pinion

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Cap screws are

Used to prevent relative motion between parts
Provided with detachable caps
Similar to small size tap bolts except that a greater variety of shapes of heads are available
Slotted for a screw driver and generally used with a nut

ANSWER DOWNLOAD EXAMIANS APP