Equipment Calibration & Maintenance Flashcards
7 cards from real CMS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Equipment Calibration & Maintenance flashcards as text
In a Gauge R&R study, 'Reproducibility' measures variation due to:
Answer: Different operators using the same gauge
Reproducibility captures the variation in measurements when different operators use the same gauge to measure the same part under the same conditions.
What is the primary purpose of a control chart used during equipment monitoring?
Answer: To detect process shifts and out-of-control conditions in real time
Control charts plot process data over time with statistical control limits, enabling real-time detection of trends, shifts, or out-of-control conditions.
A thermocouple used in a heat treatment furnace fails to respond quickly to temperature changes. This performance issue is called:
Answer: Slow response time (lag)
Slow response time or lag refers to the delay between an actual temperature change and the sensor's measurement update, affecting process control accuracy.
Which lubrication strategy matches the correct lubricant viscosity to equipment operating conditions to maximize equipment life?
Answer: Tribology-based lubrication
Tribology-based lubrication applies the science of friction, wear, and lubrication to select the optimal lubricant viscosity and type for specific operating temperatures, loads, and speeds.
An ISO 9001 quality management system requires calibration records to be retained for:
Answer: At least the life of the equipment or as defined by the organization
ISO 9001 requires that calibration records be retained for a period determined by the organization, typically covering the life of the equipment and any traceability requirements.
Which failure pattern describes equipment that has a high early failure rate, a low constant failure rate in midlife, and increasing failures at end of life?
Answer: Bathtub curve
The bathtub curve models the three phases of equipment life: infant mortality (early failures), useful life (constant low failure rate), and wear-out (increasing failure rate).
When a CNC machine spindle is checked for runout, the instrument most commonly used is a:
Answer: Dial indicator (test indicator)
A dial indicator (test indicator) is mounted on a fixed reference and measures the radial or axial deviation of the rotating spindle as it completes a revolution.