Machine Design
Stress concentration is caused due to

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

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
The contact ratio is the ratio of

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

ANSWER DOWNLOAD EXAMIANS APP