Machine Design
In thrust bearings, the load acts

Along the axis of rotation
In any direction
Perpendicular to the axis of rotation
Parallel to the axis of rotation

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Castle nut is a locking device in which

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin spitted and bent in reverse direction at other end
A slot is cut partly is middle of nut and then slot reduced by tightening a screw
One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
A fast and loose pulley drive is used when

Shafts are arranged parallel and rotate in the opposite directions
Shafts are arranged parallel and rotate in the same directions
Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft
Shafts are arranged at right angles and rotate in one definite direction

ANSWER DOWNLOAD EXAMIANS APP