CPM TPM & Predictive Maintenance 2 — Questions and Answers
Question 1: Which TPM pillar focuses on eliminating the six big losses in equipment effectiveness?
- Planned Maintenance
- Focused Improvement (Kobetsu Kaizen) (Correct answer)
- Early Equipment Management
- Quality Maintenance
Correct answer: Focused Improvement (Kobetsu Kaizen)
Focused Improvement targets the six big losses through small-group activities to maximize equipment effectiveness.
Question 2: In vibration analysis, what does a high amplitude at the fundamental frequency (1X) typically indicate?
- Bearing defect
- Misalignment
- Imbalance (Correct answer)
- Looseness
Correct answer: Imbalance
A dominant 1X frequency peak is the classic signature of mass imbalance in rotating equipment.
Question 3: What is the primary purpose of a P-F interval in predictive maintenance?
- Schedule labor resources
- Define the window between detectable failure onset and functional failure (Correct answer)
- Calculate replacement part lead time
- Measure MTBF trends
Correct answer: Define the window between detectable failure onset and functional failure
The P-F interval defines how much time is available between when a potential failure is detected and when functional failure occurs.
Question 4: Autonomous maintenance in TPM primarily shifts which responsibility to operators?
- Major overhaul planning
- Capital expenditure approval
- Basic equipment care such as cleaning, lubrication, and inspection (Correct answer)
- Spare parts procurement
Correct answer: Basic equipment care such as cleaning, lubrication, and inspection
Autonomous maintenance empowers operators to perform routine care tasks, freeing maintenance technicians for more complex work.
Question 5: Which oil analysis result most directly indicates active wear of metallic components?
- Increased viscosity
- Rising ferrous particle count (Correct answer)
- Lower acid number
- Reduced water content
Correct answer: Rising ferrous particle count
Increasing ferrous particle count in oil samples indicates that metal surfaces are wearing and releasing particles into the lubricant.
Question 6: The Overall Equipment Effectiveness (OEE) metric of 85% is generally considered world-class for which environment?
- Batch chemical processing
- Discrete mass production (Correct answer)
- Job shop machining
- Continuous flow refining
Correct answer: Discrete mass production
An 85% OEE benchmark for world-class performance was established in the context of discrete mass production manufacturing.
Question 7: In thermographic inspections, which condition is most commonly identified on electrical panels?
- Insulation degradation from UV exposure
- Hot spots caused by loose connections or overloaded circuits (Correct answer)
- Harmonics from variable frequency drives
- Ground fault leakage currents
Correct answer: Hot spots caused by loose connections or overloaded circuits
Infrared thermography excels at finding hot spots in electrical panels caused by loose connections, unbalanced loads, or failing components.
CPM TPM & Predictive Maintenance 2
Which TPM pillar focuses on eliminating the six big losses in equipment effectiveness?