Manufacturing and Production Machine Operation and Maintenance 2

Question 1

What is Total Productive Maintenance (TPM)?

Accepted Answer

A comprehensive maintenance approach involving all employees to maximize equipment effectiveness

Answer

A reactive maintenance strategy focused only on fixing breakdowns

Answer

A maintenance program exclusively for CNC machining centers

Answer

A government-mandated equipment inspection and certification program

Question 2

Vibration analysis in predictive maintenance is primarily used to detect which type of problem?

Accepted Answer

Mechanical imbalance, misalignment, and bearing wear

Answer

Chemical contamination in lubricants

Answer

Electrical faults in control panels

Answer

Temperature fluctuations in coolant systems

Question 3

Which maintenance strategy typically results in the HIGHEST unplanned downtime costs?

Accepted Answer

Reactive (breakdown) maintenance

Answer

Predictive maintenance

Answer

Preventive maintenance

Answer

Total Productive Maintenance (TPM)

Question 4

What is a maintenance work order primarily used for?

Accepted Answer

Documenting, authorizing, and tracking specific maintenance tasks

Answer

Ordering spare parts directly from suppliers

Answer

Approving changes to the production schedule

Answer

Recording employee training and certification records

Question 5

What does MTTR stand for in maintenance performance metrics?

Accepted Answer

Mean Time to Repair

Answer

Maximum Time to Repair

Answer

Minimum Total Technical Response

Answer

Machine Total Throughput Rate

Question 6

Which daily maintenance task is most critical for a CNC machining center?

Accepted Answer

Clean chips and debris, and check lubricant and coolant levels

Answer

Replace all cutting tools at the start of each shift

Answer

Recalibrate the entire coordinate reference system

Answer

Reprogram all stored tool paths and offsets

Question 7

In manufacturing maintenance, what does a Pareto analysis help identify?

Accepted Answer

The 20% of failure causes responsible for 80% of downtime

Answer

The optimal lubrication schedule for all machines

Answer

The total cost of spare parts inventory

Answer

The sequence of preventive maintenance tasks