Equipment Operation & Maintenance Flashcards
7 cards from real CPT 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 Operation & Maintenance flashcards as text
Why should grinding wheels not be used on the side face unless specifically designed for lateral grinding?
Answer: Lateral force can crack the wheel and cause catastrophic failure
Standard grinding wheels are engineered for face use only; lateral force can crack the wheel and result in violent disintegration.
What is the correct procedure for adjusting the tension on a flexible drive shaft used with rotary carving tools in a prosthetic lab?
Answer: Follow the manufacturer's specification and avoid kinking the shaft
Flexible drive shafts must be set per manufacturer's tension spec and kept free of kinks, which cause wear and shaft failure.
Which factor most commonly leads to delamination failure in a carbon fiber prosthetic foot shell?
Answer: Incorrect laminate ratio of resin to reinforcement
An incorrect resin-to-reinforcement ratio leaves voids or resin-rich zones that are prone to delamination under load.
In a prosthetic lab equipped with CNC milling equipment, which scheduled maintenance task is most critical for accuracy?
Answer: Lubricating and inspecting the ball screws and linear rails
Ball screws and linear rails are the precision motion components; lubrication and inspection directly maintain positioning accuracy.
When a polishing wheel becomes glazed and stops cutting effectively, what corrective action should the technician take?
Answer: Dress the wheel with a wheel dressing tool to expose fresh abrasive
Dressing the wheel with a dressing tool removes the glazed surface layer, exposing fresh abrasive particles to restore cutting action.
What is the primary reason compressed air should be filtered and dried before use in pneumatic prosthetic lab tools?
Answer: To prevent moisture and particulates from damaging tool internals and contaminating components
Moisture and particulates in compressed air accelerate wear of pneumatic tool seals and can contaminate prosthetic materials being fabricated.
When a prosthetic technician notices unusual vibration from a bench grinder, what is the most likely cause requiring immediate attention?
Answer: Wheel imbalance, damage, or improper mounting
Unusual vibration in a bench grinder typically indicates wheel imbalance, a cracked wheel, or incorrect mounting — all of which are immediate safety hazards.