Asset Management Asset Maintenance and Reliability 2 — Questions and Answers
Question 1: What is predictive maintenance primarily based on?
- Fixed calendar intervals set by the maintenance department
- Equipment manufacturer's recommended service schedule
- Data analysis and condition monitoring to predict impending failures (Correct answer)
- Maintenance technician experience and intuition alone
Correct answer: Data analysis and condition monitoring to predict impending failures
Predictive maintenance uses data analysis, sensors, and condition monitoring technologies such as vibration analysis and oil sampling to predict when equipment is likely to fail before it does.
Question 2: Which reliability metric represents the probability that an asset will perform its required function for a specified period under stated conditions?
- Availability
- Reliability (Correct answer)
- Maintainability
- Dependability
Correct answer: Reliability
Reliability is defined as the probability that an item will perform its required function for a given time period under specified operating conditions without failure.
Question 3: What is a 'work order' in computerized maintenance management?
- A purchase requisition for spare parts from a supplier
- A formal document authorizing and directing specific maintenance work to be performed (Correct answer)
- An employee performance evaluation completed after a repair
- A financial report summarizing monthly maintenance costs
Correct answer: A formal document authorizing and directing specific maintenance work to be performed
A work order is a formal document that authorizes, schedules, assigns, and provides instructions for specific maintenance tasks to be performed on an asset.
Question 4: Which maintenance approach uses vibration analysis, oil analysis, and infrared thermography as primary diagnostic tools?
- Corrective maintenance
- Preventive maintenance
- Predictive maintenance (Correct answer)
- Deferred maintenance
Correct answer: Predictive maintenance
Predictive maintenance employs condition monitoring technologies like vibration analysis, oil sampling, and thermography to detect early signs of failure before they occur.
Question 5: What does 'asset availability' measure in maintenance performance?
- The percentage of time an asset is in working condition and ready for use (Correct answer)
- The physical location of an asset at any given point in time
- The financial liquidity value of an asset on the balance sheet
- The number of users who can access an asset simultaneously
Correct answer: The percentage of time an asset is in working condition and ready for use
Asset availability is the percentage of total time that an asset is in an operational, non-failed state and ready for its intended use when needed.
Question 6: What is the primary purpose of a Failure Mode and Effects Analysis (FMEA)?
- To document historical failures in a maintenance database for reporting
- To identify potential failure modes and analyze their impacts on system function (Correct answer)
- To calculate the total cost of maintenance activities over the asset lifecycle
- To set preventive maintenance intervals based on manufacturer data
Correct answer: To identify potential failure modes and analyze their impacts on system function
FMEA systematically identifies potential failure modes of components or processes and analyzes the consequences of those failures on the overall system to prioritize risk mitigation.
Question 7: What is the primary benefit of implementing a Computerized Maintenance Management System (CMMS)?
- It automatically repairs equipment without human technician intervention
- It centralizes maintenance data, work orders, and schedules for improved management (Correct answer)
- It completely replaces the need for trained maintenance technicians on-site
- It guarantees the elimination of all unplanned equipment failures
Correct answer: It centralizes maintenance data, work orders, and schedules for improved management
A CMMS centralizes maintenance information including work orders, asset history, spare parts inventory, and PM schedules to improve planning, tracking, and decision-making.
Asset Management Asset Maintenance and Reliability 2
What is predictive maintenance primarily based on?