Manufacturing and Production Machine Operation and Maintenance 3

Question 1

What is 'condition-based maintenance' triggered by?

Accepted Answer

Actual measured equipment parameters exceeding defined thresholds

Answer

A fixed calendar schedule regardless of equipment condition

Answer

The number of units produced since last maintenance

Answer

Manufacturer recommendations printed in the machine manual

Question 2

What is the primary function of a coolant system in a metal machining operation?

Accepted Answer

To cool the cutting tool and workpiece while flushing away chips

Answer

To lubricate the workpiece surface only

Answer

To provide hydraulic pressure for the tool-clamping system

Answer

To filter airborne metal particles from the machine enclosure

Question 3

What does 'calibration' of a measuring instrument or machine mean?

Accepted Answer

Comparing and adjusting the machine's measurements to a known traceable standard

Answer

Setting the machine to its maximum allowable operating speed

Answer

Replacing worn components with new manufacturer-approved parts

Answer

Programming new tool paths and offsets into the control system

Question 4

What is 'root cause analysis' (RCA) used for in machine maintenance?

Accepted Answer

Identifying the fundamental reason a failure occurred to prevent recurrence

Answer

Analyzing the hierarchical structure of machine components in a BOM

Answer

Calculating the total lifecycle cost of maintaining a machine

Answer

Documenting the complete repair history of a piece of equipment

Question 5

Which document provides step-by-step instructions that maintenance technicians must follow when performing a specific repair task?

Accepted Answer

Standard Operating Procedure (SOP)

Answer

Bill of Materials (BOM)

Answer

Production work order

Answer

Machine specification sheet

Question 6

What is the recommended practice when a machine shows signs of overheating during production?

Accepted Answer

Shut down the machine and investigate the cause before resuming operation

Answer

Increase coolant flow and continue production to avoid downtime

Answer

Reduce the production speed by 5% and monitor for improvement

Answer

Replace the cooling fan and restart immediately without further inspection

Question 7

In a preventive maintenance program, what determines the maintenance interval for a machine?

Accepted Answer

Manufacturer recommendations, operating conditions, historical failure data, and usage hours

Answer

The machine's purchase price and age only

Answer

The availability of maintenance technicians on each shift

Answer

The number of different products the machine is used to produce