CMRT Corrective Maintenance Procedures 2

Question 1

When a centrifugal pump loses prime during operation, what is the FIRST corrective action a technician should take?

Accepted Answer

Check suction line for air leaks or blockages

Answer

Loss of prime is most commonly caused by air ingestion through suction-side leaks or blockages, so that should be investigated first.

Question 2

During corrective maintenance, a technician discovers the actual failure mode differs from the reported symptom. What is the correct next step?

Accepted Answer

Update the work order to reflect the true failure and scope change

Answer

Work orders must be updated to accurately reflect all discovered failure modes so repairs are complete and records remain accurate.

Question 3

A technician is replacing a failed V-belt drive. Which measurement is MOST critical to verify before returning the equipment to service?

Accepted Answer

Belt tension and sheave alignment

Answer

Proper belt tension and sheave alignment directly affect belt life, power transmission efficiency, and bearing loads.

Question 4

What does 'Mean Time To Repair' (MTTR) measure in a corrective maintenance program?

Accepted Answer

The average time required to restore failed equipment to operational status

Answer

MTTR is the average elapsed time from failure detection to full restoration of function, and is a key maintenance effectiveness metric.

Question 5

When performing corrective maintenance on a gearbox, technicians find metal particles in the oil. What is the BEST initial diagnostic step?

Accepted Answer

Perform oil analysis and inspect a magnetic drain plug sample to identify particle type

Answer

Particle morphology (shape, composition, size) from oil analysis and magnetic plug inspection identifies the specific failed component.

(CMRT) Certified Maintenance and Reliability Technician Practice Test