Machine Operation and Maintenance Flashcards
7 cards from real Manufacturing and Production practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Machine Operation and Maintenance flashcards as text
What is Total Productive Maintenance (TPM)?
Answer: A comprehensive maintenance approach involving all employees to maximize equipment effectiveness
TPM is a company-wide maintenance philosophy that involves all employees—especially machine operators—in maintaining and continuously improving equipment effectiveness.
Vibration analysis in predictive maintenance is primarily used to detect which type of problem?
Answer: Mechanical imbalance, misalignment, and bearing wear
Vibration analysis detects mechanical issues such as imbalance, misalignment, and bearing wear in rotating machinery before catastrophic failure occurs.
Which maintenance strategy typically results in the HIGHEST unplanned downtime costs?
Answer: Reactive (breakdown) maintenance
Reactive maintenance waits until equipment fails, resulting in unplanned downtime, emergency repair costs, potential secondary damage, and lost production.
What is a maintenance work order primarily used for?
Answer: Documenting, authorizing, and tracking specific maintenance tasks
A maintenance work order documents, authorizes, and tracks specific maintenance tasks, including labor hours, parts used, and task completion status.
What does MTTR stand for in maintenance performance metrics?
Answer: Mean Time to Repair
MTTR (Mean Time to Repair) measures the average time required to diagnose, repair, and return a failed machine or component to operation.
Which daily maintenance task is most critical for a CNC machining center?
Answer: Clean chips and debris, and check lubricant and coolant levels
Daily CNC maintenance includes cleaning chips from the work area and checking lubricant and coolant levels to prevent wear, corrosion, and contamination.
In manufacturing maintenance, what does a Pareto analysis help identify?
Answer: The 20% of failure causes responsible for 80% of downtime
Pareto analysis identifies the vital few causes (roughly 20%) that account for the majority (roughly 80%) of equipment failures or downtime, allowing teams to prioritize corrective actions.