CPT Materials, Tools, & Safety in Prosthetics 2

Question 1

Which solvent is most commonly used to clean carbon fiber components before bonding?

Accepted Answer

Acetone

Answer

Isopropyl alcohol

Answer

Mineral spirits

Answer

Methyl ethyl ketone (MEK)

Question 2

When vacuum-forming thermoplastic sheets, which temperature range is typically used for polypropylene?

Accepted Answer

180–200°C

Answer

150–170°C

Answer

210–230°C

Answer

250–270°C

Question 3

A technician notices discoloration and brittleness in a silicone liner after extended use. What is the MOST likely cause?

Accepted Answer

UV light exposure

Answer

Excessive compression

Answer

Inadequate hygiene

Answer

Overhydration

Question 4

Which OSHA standard primarily governs respiratory protection in a prosthetics fabrication shop?

Accepted Answer

29 CFR 1910.134

Answer

29 CFR 1910.147

Answer

29 CFR 1910.1200

Answer

29 CFR 1910.303

Question 5

What is the primary advantage of using a belt sander over an angle grinder when shaping thermoplastic sockets?

Accepted Answer

Better control and reduced risk of material melting

Answer

Higher surface temperature generation

Answer

Faster material removal rate

Answer

Produces a smoother final finish without additional steps

Question 6

Which type of adhesive is typically used to bond Pelite foam to a thermoplastic socket?

Accepted Answer

Contact cement

Answer

Cyanoacrylate (super glue)

Answer

Epoxy resin

Answer

Polyurethane adhesive

Question 7

In a prosthetics lab, an eyewash station must be accessible within how many seconds of travel from any chemical hazard?

Accepted Answer

10 seconds

Answer

5 seconds

Answer

15 seconds

Answer

30 seconds