433A Conveyor Systems 6

Question 1

What factors determine the maximum incline angle for a belt conveyor?

Accepted Answer

Material characteristics (angle of repose, moisture, lump size), belt surface texture, and loading method

Answer

Only the belt speed

Answer

Only the motor horsepower

Answer

Only the belt width

Question 2

What is the function of a head pulley lagging?

Accepted Answer

To increase the friction coefficient between the belt and pulley by applying a rubber or ceramic surface to the pulley shell

Answer

To make the pulley larger

Answer

To protect the pulley from rain

Answer

To reduce the weight of the pulley

Question 3

What is the difference between a mechanical belt splice and a vulcanized belt splice?

Accepted Answer

Mechanical splices use metal fasteners for quick field installation but are weaker, while vulcanized splices bond the belt layers with heat and pressure for a stronger, smoother joint

Answer

They are identical in strength

Answer

Mechanical splices are always stronger

Answer

Vulcanized splices can only be done at the factory

Question 4

What is the purpose of a snub pulley on a belt conveyor?

Accepted Answer

To increase the belt's wrap angle around the drive pulley, improving belt-to-pulley friction and traction

Answer

To snub (stop) the belt

Answer

To reduce belt sag between idlers

Answer

To guide the belt around corners

Question 5

What is a conveyor belt condition monitoring system?

Accepted Answer

An integrated system using sensors to continuously monitor belt condition including thickness, splice integrity, rips, and edge wear for predictive maintenance

Answer

A system that monitors weather conditions around the conveyor

Answer

A camera system for security

Answer

A manual inspection checklist

Question 6

What is the correct procedure for tensioning a screw conveyor that has stopped due to material jamming?

Accepted Answer

Lock out the drive, remove the access covers, clear the jammed material manually, check for damage, and restart empty before resuming operation

Answer

Increase motor speed to break through the jam

Answer

Reverse the motor direction

Answer

Add lubricant to the trough