CBJ Tools and Technology 3

Question 1

What is the function of a drawplate in the jewelry studio?

Accepted Answer

Reducing wire or tubing to a smaller diameter

Answer

A drawplate is a hardened steel plate with tapered holes through which wire or tubing is pulled to reduce its diameter.

Question 2

Which type of pickle solution is most commonly used in US bench jewelry studios today?

Accepted Answer

Sodium bisulfate (Sparex)

Answer

Sodium bisulfate, sold as Sparex, is the standard safe acid pickle used to remove oxides and flux residue after soldering.

Question 3

A flex shaft motor running at too low a speed for a polishing operation will most likely cause:

Accepted Answer

Inadequate cutting action and smearing of the polishing compound

Answer

Polishing wheels and bobs require sufficient surface speed to cut the compound properly; too slow a speed smears rather than polishes.

Question 4

What is the primary advantage of an ultrasonic cleaner in a jewelry studio?

Accepted Answer

Cavitation action removes dirt and polishing compound from complex geometries

Answer

Ultrasonic cleaners use high-frequency sound waves to create cavitation bubbles that dislodge contaminants from intricate areas.

Question 5

A ring clamp is used in bench work primarily to:

Accepted Answer

Hold a ring steady while filing, setting, or engraving

Answer

A ring clamp provides a comfortable, secure grip on a ring shank during hand operations like filing, setting, and engraving.

(CBJ) Certified Bench Jeweler Practice Test