Corrective Maintenance Procedures Flashcards
7 cards from real CMRT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Corrective Maintenance Procedures flashcards as text
When a centrifugal pump loses prime during operation, what is the FIRST corrective action a technician should take?
Answer: Check suction line for air leaks or blockages
Loss of prime is most commonly caused by air ingestion through suction-side leaks or blockages, so that should be investigated first.
During corrective maintenance, a technician discovers the actual failure mode differs from the reported symptom. What is the correct next step?
Answer: Update the work order to reflect the true failure and scope change
Work orders must be updated to accurately reflect all discovered failure modes so repairs are complete and records remain accurate.
A technician is replacing a failed V-belt drive. Which measurement is MOST critical to verify before returning the equipment to service?
Answer: Belt tension and sheave alignment
Proper belt tension and sheave alignment directly affect belt life, power transmission efficiency, and bearing loads.
What does 'Mean Time To Repair' (MTTR) measure in a corrective maintenance program?
Answer: The average time required to restore failed equipment to operational status
MTTR is the average elapsed time from failure detection to full restoration of function, and is a key maintenance effectiveness metric.
When performing corrective maintenance on a gearbox, technicians find metal particles in the oil. What is the BEST initial diagnostic step?
Answer: Perform oil analysis and inspect a magnetic drain plug sample to identify particle type
Particle morphology (shape, composition, size) from oil analysis and magnetic plug inspection identifies the specific failed component.
A rotating shaft shows 0.012 inches of radial runout when measured with a dial indicator. Per standard corrective maintenance practice, this reading should be:
Answer: Compared against the equipment manufacturer's acceptable tolerance specification
Runout acceptability depends on shaft diameter, speed, and application; always compare measurements to the OEM specification.
During corrective maintenance, an unexpected energized circuit is discovered that was not shown on the equipment's electrical drawing. The correct action is to:
Answer: Stop work, re-apply energy control, and update the lockout/tagout procedure before continuing
Unidentified energy sources require an immediate stop-work, additional LOTO controls, and drawing updates to protect all personnel.