Machine Design
A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called

Castle nut
Jam nut
Sawn nut
Ring nut

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by

None of these
Equating tearing resistance of the plate to the shearing resistance of the rivets
Equating shearing resistance to the crushing resistance of the rivets
Equating tearing resistance of the plate to the crushing resistance of the rivets

ANSWER DOWNLOAD EXAMIANS APP