433A Conveyor Systems 2

Question 1

What is a screw conveyor and what materials is it typically used for?

Accepted Answer

A conveyor using a helical screw (auger) rotating inside a trough to move bulk materials such as grain, cement, and powders

Answer

A conveyor held together with screws

Answer

A conveyor that moves fasteners

Answer

A belt conveyor with a screw take-up

Question 2

What is the purpose of a gravity take-up on a long belt conveyor?

Accepted Answer

To automatically maintain constant belt tension using a weighted carriage that moves to compensate for belt stretch and thermal changes

Answer

To increase belt speed using gravity

Answer

To slow the belt when going downhill

Answer

To take up floor space

Question 3

What is a bucket elevator and what is it used for?

Accepted Answer

A vertical conveyor using buckets attached to a belt or chain to lift bulk materials to a higher elevation

Answer

An elevator for maintenance personnel

Answer

A screw conveyor mounted vertically

Answer

A pneumatic conveying system

Question 4

What causes belt slippage on the drive pulley of a conveyor?

Accepted Answer

Insufficient belt tension, wet or worn pulley surface, or insufficient contact arc (wrap angle) between belt and drive pulley

Answer

The belt is too heavy

Answer

The motor is too powerful

Answer

The belt is too wide

Question 5

What is the purpose of a belt conveyor training idler?

Accepted Answer

To automatically correct belt mistracking by pivoting in response to belt drift and steering the belt back to center

Answer

To train new operators

Answer

To train the belt to a specific shape

Answer

To increase belt speed at certain points

Question 6

What maintenance check is critical on a chain conveyor?

Accepted Answer

Measuring chain elongation (stretch) to determine wear and verifying proper tension and lubrication

Answer

Checking the color of the chain

Answer

Counting the number of links

Answer

Checking the chain temperature