CPT Maintenance & Troubleshooting 2

Question 1

A conveyor belt is tracking to one side and riding off the pulley. What is the FIRST corrective action to take?

Accepted Answer

Check and adjust the tail pulley alignment

Answer

Belt tracking problems are most commonly caused by misaligned pulleys, so adjusting the tail pulley is the first corrective step.

Question 2

Which maintenance strategy involves monitoring equipment condition in real time to predict failures before they occur?

Accepted Answer

Predictive maintenance

Answer

Predictive maintenance uses condition monitoring data (vibration, temperature, oil analysis) to forecast failures before they happen.

Question 3

An electric motor runs hot and trips its overload protector repeatedly. Which fault should be investigated FIRST?

Accepted Answer

Blocked ventilation or cooling airflow

Answer

Blocked ventilation prevents heat dissipation and is the most common cause of motor overheating and nuisance overload trips.

Question 4

What does a high vibration reading in the axial direction on a rotating machine most likely indicate?

Accepted Answer

Misalignment

Answer

Axial vibration is a classic signature of shaft misalignment between coupled machines.

Question 5

A pneumatic cylinder moves sluggishly and its speed has decreased. The most likely cause is:

Accepted Answer

Worn or damaged piston seals

Answer

Worn piston seals allow air to bypass the piston, reducing the effective force and slowing the cylinder stroke.

(CPT) Certified Production Technician Practice Test