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 'condition-based maintenance' triggered by?
Answer: Actual measured equipment parameters exceeding defined thresholds
Condition-based maintenance triggers action when a measured parameter—such as vibration amplitude or oil particle count—exceeds a defined threshold, indicating developing wear.
What is the primary function of a coolant system in a metal machining operation?
Answer: To cool the cutting tool and workpiece while flushing away chips
Coolant reduces heat generated at the cutting zone, extends tool life, improves surface finish, and flushes chips away from the workpiece.
What does 'calibration' of a measuring instrument or machine mean?
Answer: Comparing and adjusting the machine's measurements to a known traceable standard
Calibration compares a machine's or instrument's output to a known traceable standard and adjusts it to ensure measurement accuracy.
What is 'root cause analysis' (RCA) used for in machine maintenance?
Answer: Identifying the fundamental reason a failure occurred to prevent recurrence
RCA is a systematic process to identify the fundamental cause of a failure—not just the symptom—so corrective actions can be taken to prevent it from happening again.
Which document provides step-by-step instructions that maintenance technicians must follow when performing a specific repair task?
Answer: Standard Operating Procedure (SOP)
A Standard Operating Procedure (SOP) provides detailed, step-by-step instructions for performing maintenance or repair tasks consistently and safely.
What is the recommended practice when a machine shows signs of overheating during production?
Answer: Shut down the machine and investigate the cause before resuming operation
Overheating is a warning sign of a developing problem; shutting down and investigating the cause prevents further damage, fire risk, and more costly repairs.
In a preventive maintenance program, what determines the maintenance interval for a machine?
Answer: Manufacturer recommendations, operating conditions, historical failure data, and usage hours
Maintenance intervals are determined by combining manufacturer recommendations with actual operating conditions, machine history, and usage hours to optimize reliability and cost.