Machine Design
In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

Pressure angle
Pitch lead angle
Helix angle
None of these

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
A tap bolt

Has a head on one end and a nut fitted to the other
Has pointed threads
Has both the ends threaded
Has head at one end and other end fits into a tapped hole in the other part to be joined

ANSWER DOWNLOAD EXAMIANS APP