Manufacturing and Production Machine Operation and Maintenance

Question 1

What does MTBF stand for in machine maintenance?

Accepted Answer

Mean Time Between Failures

Answer

MTBF (Mean Time Between Failures) measures the average time a machine operates between unplanned breakdowns, and is a key reliability metric.

Question 2

Which type of maintenance is performed on a scheduled basis to prevent equipment failure before it occurs?

Accepted Answer

Preventive maintenance

Answer

Preventive maintenance is scheduled at regular intervals—based on time or usage—to prevent equipment failure before it happens.

Question 3

What is the primary purpose of lubrication in machine maintenance?

Accepted Answer

To reduce friction and wear between moving parts

Answer

Lubrication creates a film between moving parts that reduces friction and wear, extending machine life and preventing heat buildup.

Question 4

What is predictive maintenance?

Accepted Answer

Maintenance based on actual equipment condition monitoring data

Answer

Predictive maintenance uses condition monitoring technologies—such as vibration analysis and thermography—to predict and prevent failures before they occur.

Question 5

Which metric combines machine availability, performance rate, and quality rate to measure manufacturing effectiveness?

Accepted Answer

Overall Equipment Effectiveness (OEE)

Answer

OEE (Overall Equipment Effectiveness) multiplies availability, performance, and quality rates to give a single metric of how effectively a machine is being used.

Manufacturing and Production Practice Test

Manufacturing and Production Practice Test

Manufacturing and Production Machine Operation and Maintenance