CBJ Practice and Application 4

Question 1

A jeweler needs to solder a sterling silver clasp onto a sterling chain. The correct solder flow temperature sequence is to use:

Accepted Answer

Easy solder to avoid melting any previously soldered joints

Answer

Easy solder has the lowest flow temperature and is used for final operations to avoid re-flowing earlier joints made with higher-temperature solders.

Question 2

A customer's 18k gold bracelet has a worn box clasp that no longer holds. The best permanent repair is to:

Accepted Answer

Fabricate or source a new clasp and solder it onto the bracelet end

Answer

Replacing the worn clasp entirely with a properly soldered new one restores full security and function.

Question 3

When drilling a hole through a gemstone for a pendant bail, the correct drilling medium is:

Accepted Answer

Water or cutting fluid with a diamond drill bit at low speed

Answer

Diamond drill bits used wet at low speed prevent heat buildup that could crack or shatter the gemstone.

Question 4

After completing a repair on a rhodium-plated white gold ring, the jeweler should:

Accepted Answer

Re-plate the entire ring with rhodium to restore a uniform appearance

Answer

Re-plating the entire piece after repair ensures a consistent color and surface across all areas of the ring.

Question 5

A jeweler is bending a piece of 18-gauge fine silver wire into a tight curve and it fractures. The correct response is to:

Accepted Answer

Anneal the wire first, then re-attempt the bend gradually

Answer

Annealing restores ductility to work-hardened fine silver, allowing the bend to be completed without fracture.

(CBJ) Certified Bench Jeweler Practice Test