Machine Design
Deep groove ball bearings are used for

Small angular displacement of shafts
Heavy thrust load only
Radial load at high speed
Combined thrust and radial loads at high speed

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
In worm, gears, pitch lead angle is

Half the angle between two inclined faces in axial plane
The angle between the tangent to the pitch helix and an element of the cylinder
The angle between the tangent to the pitch helix and the plane of rotation
None of these

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
The contact ratio is the ratio of

Length of arc of recess to the circular pitch
Length of path of contact to the circular pitch
Length of arc of approach to the circular pitch
Length of arc of contact to the circular pitch

ANSWER DOWNLOAD EXAMIANS APP