1. Hartung governor
2. Wilson Hartnell governor
3. Pickering governor
4. Inertia governor
Pickering governor
1. ball bearing
2. roller bearing
3. needle roller bearing
4. thrust bearing
needle roller bearing
1. in increasing velocity ratio
2. in decreasing the slip of the belt
3. for automatic adjustment of belt position so that belt runs centrally
4. increase belt and pulley life
for automatic adjustment of belt position so that belt runs centrally
1. for changing the direction of motion of the belt
2. for applying tension
3. for increasing velocity ratio
4. all of the above
for applying tension
1. broken belt
2. broken belt and its adjacent belts
3. all the belts
4. there is no need of changing any one as remaining belts can take care of transmission of load
all the belts
1. inertia
2. momentum
3. moment of momentum
4. torque
torque
1. material of the pulley
2. material of the belt
3. larger size of the driver pulley
4. uneven extensions and contractions due to varying tension
uneven extensions and contractions due to varying tension
1. tension on tight side of belt
2. tension on slack side of belt
3. radius of pulley
4. all of the above
all of the above
1. a straight line
2. a circle
3. involute
4. cycloid
involute
1. spur gear
2. spiral gear
3. bevel gear
4. worm gear
worm gear