CPT Maintenance Awareness 2 — Questions and Answers
Question 1: Which type of maintenance is performed based on equipment condition monitoring rather than a fixed schedule?
- Corrective maintenance
- Predictive maintenance (Correct answer)
- Preventive maintenance
- Breakdown maintenance
Correct answer: Predictive maintenance
Predictive maintenance uses condition monitoring data (vibration, temperature, oil analysis) to trigger service only when indicators show degradation.
Question 2: What does the acronym OEE stand for in a manufacturing maintenance context?
- Overall Equipment Effectiveness (Correct answer)
- Operational Efficiency Evaluation
- Output Engineering Estimate
- Overhead Expense Elimination
Correct answer: Overall Equipment Effectiveness
OEE (Overall Equipment Effectiveness) measures availability, performance, and quality to gauge how effectively equipment is being used.
Question 3: A machine guard is removed during maintenance. When must it be reinstalled?
- At the end of the shift
- Before the machine is returned to service (Correct answer)
- Within 24 hours
- Only if OSHA inspection is scheduled
Correct answer: Before the machine is returned to service
Guards must be reinstalled and verified before a machine is returned to production to protect operators from hazards.
Question 4: What is the primary purpose of a lubrication schedule in a maintenance program?
- To reduce energy costs
- To prevent premature wear and extend equipment life (Correct answer)
- To meet environmental regulations
- To eliminate the need for spare parts
Correct answer: To prevent premature wear and extend equipment life
Regular lubrication reduces friction and heat, preventing premature wear and extending the service life of mechanical components.
Question 5: When a production technician notices an unusual smell near electrical equipment, the FIRST action should be to:
- Note it in the log and continue working
- Immediately report it to maintenance or supervision (Correct answer)
- Open the electrical panel to investigate
- Spray the area with water
Correct answer: Immediately report it to maintenance or supervision
Unusual smells near electrical equipment can signal overheating or arcing; reporting immediately allows qualified personnel to investigate safely.
Question 6: What does MTBF measure in a reliability-centered maintenance program?
- Mean Time Between Failures (Correct answer)
- Maximum Tolerable Breakdown Frequency
- Minimum Time Before Failure
- Maintenance Task Budget Factor
Correct answer: Mean Time Between Failures
MTBF (Mean Time Between Failures) measures the average operating time between one failure and the next, indicating equipment reliability.
Question 7: Which condition would most likely be identified during a vibration analysis of a rotating shaft?
- Low oil viscosity
- Bearing wear or imbalance (Correct answer)
- Corrosion on the housing exterior
- Incorrect belt tension color code
Correct answer: Bearing wear or imbalance
Vibration analysis detects issues such as bearing wear, shaft imbalance, misalignment, and looseness in rotating machinery.
CPT Maintenance Awareness 2
Which type of maintenance is performed based on equipment condition monitoring rather than a fixed schedule?