CPT Preventive Maintenance Procedures 3

Question 1

What does an elevated bearing temperature during a PM inspection most likely indicate?

Accepted Answer

Insufficient lubrication or bearing wear

Answer

Elevated bearing temperature typically signals insufficient lubrication, overloading, misalignment, or internal bearing wear.

Question 2

Which PM task helps prevent cavitation damage in a centrifugal pump?

Accepted Answer

Checking and adjusting suction pressure and NPSH conditions

Answer

Verifying adequate suction pressure and Net Positive Suction Head (NPSH) prevents cavitation, which erodes impellers and internal pump components.

Question 3

How does predictive maintenance differ from preventive maintenance?

Accepted Answer

Predictive maintenance uses condition monitoring data to determine when maintenance is needed

Answer

Predictive maintenance relies on condition monitoring (vibration, temperature, oil analysis) to schedule work based on actual equipment condition rather than fixed intervals.

Question 4

What is the function of a strainer or filter in a PM inspection on a process system?

Accepted Answer

To remove particulates that could damage downstream equipment

Answer

Strainers and filters trap particulates to protect downstream pumps, valves, and instruments from erosion and plugging.

Question 5

A PM procedure requires replacing a V-belt drive. What inspection step is essential AFTER installation?

Accepted Answer

Checking belt tension and sheave alignment

Answer

After V-belt installation, correct tension and sheave alignment must be verified to prevent slipping, excessive wear, or bearing overload.

(CPT) Certified Process Technician Practice Test

(CPT) Certified Process Technician Practice Test

CPT Preventive Maintenance Procedures 3