Materials, Tools, & Safety in Prosthetics 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 Materials, Tools, & Safety in Prosthetics flashcards as text
Which solvent is most commonly used to clean carbon fiber components before bonding?
Answer: Acetone
Acetone effectively removes oils and contaminants from carbon fiber surfaces, promoting optimal adhesive bonding.
When vacuum-forming thermoplastic sheets, which temperature range is typically used for polypropylene?
Answer: 180–200°C
Polypropylene vacuum-forms optimally at 180–200°C, where it becomes pliable without degrading.
A technician notices discoloration and brittleness in a silicone liner after extended use. What is the MOST likely cause?
Answer: UV light exposure
UV light degrades silicone polymer chains over time, causing discoloration and reduced elasticity.
Which OSHA standard primarily governs respiratory protection in a prosthetics fabrication shop?
Answer: 29 CFR 1910.134
OSHA 29 CFR 1910.134 establishes requirements for respiratory protection programs including fit testing and respirator selection.
What is the primary advantage of using a belt sander over an angle grinder when shaping thermoplastic sockets?
Answer: Better control and reduced risk of material melting
Belt sanders generate less localized heat than angle grinders, reducing the risk of melting or warping thermoplastic materials.
Which type of adhesive is typically used to bond Pelite foam to a thermoplastic socket?
Answer: Contact cement
Contact cement creates a flexible, durable bond between Pelite foam and thermoplastic, accommodating the movement of the prosthetic socket.
In a prosthetics lab, an eyewash station must be accessible within how many seconds of travel from any chemical hazard?
Answer: 10 seconds
ANSI Z358.1 requires emergency eyewash stations to be reachable within 10 seconds (approximately 55 feet) from any chemical hazard.