Machine Design
The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to

0.75/ (0.75 + √v)
6/ (6 + v)
4.5/ (4.5 + v)
3/ (3 + v)

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
When the speed of belt increases,

The coefficient of friction between the belt and pulley increases
The coefficient of friction between the belt and pulley decreases
The power transmitted will increase
The power transmitted will decrease

ANSWER DOWNLOAD EXAMIANS APP