Machine Design
The objective of 'crowning' of the flat pulleys of belt drive is to

Prevent the belt joint from damaging the belt surface
Prevent the belt from running off the pulley
Increase the belt velocity
Increase the power transmission capacity

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Stress concentration is caused due to

Variation in properties of material from point to point in a member
All of these
Abrupt change of section
Pitting at points or areas at which loads on a member are applied

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
In case of V belt drive

The belt should not touch the sides of groove in the pulley
The belt should not touch the bottom of groove in the pulley
None of these
The belt should touch the bottom of groove in the pulley

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
When a machine member is subjected to torsion, the torsional shear stress set up in the member is

Maximum at both the centroidal axis and outer surface of the member
Zero at the centroidal axis and maximum at the outer surface of the member
Zero at both the centroidal axis and outer surface of the member
Maximum at the centroidal axis and zero at the outer surface of the member

ANSWER DOWNLOAD EXAMIANS APP