BOC Preventive Maintenance Systems
Assessment Exam Practice Questions
And Correct Answers (Verified Answers)
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1. Which of the following is the primary objective of a preventive
maintenance program in building systems?
A. Increase emergency repairs
B. Reduce equipment lifespan
C. Minimize equipment failure and extend operational life
D. Eliminate all maintenance costs
Preventive maintenance aims to reduce breakdowns and extend
asset life by performing scheduled inspections and servicing before
failures occur.
2. A key indicator used to measure the effectiveness of a preventive
maintenance system is:
A. Number of staff hired
, B. Mean time between failures (MTBF)
C. Utility tariff rates
D. Building occupancy rate
MTBF measures how long equipment operates before failure,
indicating maintenance program effectiveness.
3. Which maintenance activity is considered preventive rather than
corrective?
A. Repairing a broken pump
B. Replacing a burnt motor after failure
C. Responding to an HVAC breakdown
D. Lubricating bearings at scheduled intervals
Preventive maintenance includes routine tasks like lubrication to
prevent equipment failure.
4. A computerized maintenance management system (CMMS) is
primarily used to:
A. Design building layouts
B. Control energy tariffs
C. Schedule, track, and document maintenance activities
D. Replace maintenance technicians
CMMS helps organize maintenance scheduling, records, and asset
tracking.
5. The most common cause of premature equipment failure in buildings
is:
, A. Excessive preventive maintenance
B. Lack of regular maintenance
C. Overstaffing
D. High-quality installation
Failure to perform routine maintenance leads to accelerated wear
and breakdown.
6. Vibration analysis in preventive maintenance is mainly used to:
A. Measure electrical voltage
B. Detect mechanical imbalance and bearing wear
C. Clean HVAC ducts
D. Increase airflow rate
Vibration analysis identifies mechanical faults such as misalignment
or worn bearings.
7. Thermographic inspection is most useful for:
A. Measuring water flow
B. Checking pipe corrosion
C. Detecting electrical hot spots and insulation failures
D. Adjusting thermostat settings
Infrared thermography reveals abnormal heat patterns indicating
electrical faults.
8. Which maintenance strategy is based on equipment condition rather
than time intervals?
A. Reactive maintenance
Assessment Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Which of the following is the primary objective of a preventive
maintenance program in building systems?
A. Increase emergency repairs
B. Reduce equipment lifespan
C. Minimize equipment failure and extend operational life
D. Eliminate all maintenance costs
Preventive maintenance aims to reduce breakdowns and extend
asset life by performing scheduled inspections and servicing before
failures occur.
2. A key indicator used to measure the effectiveness of a preventive
maintenance system is:
A. Number of staff hired
, B. Mean time between failures (MTBF)
C. Utility tariff rates
D. Building occupancy rate
MTBF measures how long equipment operates before failure,
indicating maintenance program effectiveness.
3. Which maintenance activity is considered preventive rather than
corrective?
A. Repairing a broken pump
B. Replacing a burnt motor after failure
C. Responding to an HVAC breakdown
D. Lubricating bearings at scheduled intervals
Preventive maintenance includes routine tasks like lubrication to
prevent equipment failure.
4. A computerized maintenance management system (CMMS) is
primarily used to:
A. Design building layouts
B. Control energy tariffs
C. Schedule, track, and document maintenance activities
D. Replace maintenance technicians
CMMS helps organize maintenance scheduling, records, and asset
tracking.
5. The most common cause of premature equipment failure in buildings
is:
, A. Excessive preventive maintenance
B. Lack of regular maintenance
C. Overstaffing
D. High-quality installation
Failure to perform routine maintenance leads to accelerated wear
and breakdown.
6. Vibration analysis in preventive maintenance is mainly used to:
A. Measure electrical voltage
B. Detect mechanical imbalance and bearing wear
C. Clean HVAC ducts
D. Increase airflow rate
Vibration analysis identifies mechanical faults such as misalignment
or worn bearings.
7. Thermographic inspection is most useful for:
A. Measuring water flow
B. Checking pipe corrosion
C. Detecting electrical hot spots and insulation failures
D. Adjusting thermostat settings
Infrared thermography reveals abnormal heat patterns indicating
electrical faults.
8. Which maintenance strategy is based on equipment condition rather
than time intervals?
A. Reactive maintenance
