CBJ Skills and Expertise 2

Question 1

When sizing a ring down using the cut-and-weld method, where should the jeweler make the cut?

Accepted Answer

At the bottom of the shank

Answer

At the top of the shank near the setting

Answer

Directly behind one of the prongs

Answer

At the solder seam from a previous repair

Question 2

Which torch tip size is most appropriate for soldering a delicate platinum grain-set band?

Accepted Answer

A fine tip for precise, controlled heat

Answer

A large bushy tip for broad heat distribution

Answer

A medium tip for balanced heat

Answer

Tip size does not matter for platinum work

Question 3

A customer's yellow gold chain has a broken link. Which repair technique restores the most strength to the link?

Accepted Answer

Fusing the link with laser welding and filing flush

Answer

Applying epoxy adhesive to the break

Answer

Wrapping the break with fine wire

Answer

Replacing the entire chain rather than repairing it

Question 4

What is the primary purpose of a flex shaft machine in a jewelry bench setting?

Accepted Answer

Driving rotary tools for grinding, drilling, and polishing

Answer

Melting metal for casting

Answer

Measuring gemstone dimensions precisely

Answer

Applying chemical patinas to metal surfaces

Question 5

When tightening a loose prong on a pavé-set ring, which tool minimizes the risk of chipping the small stones?

Accepted Answer

A prong pusher with a polished cup tip

Answer

A burnisher

Answer

A pointed graver

Answer

A pair of flat-nose pliers

Question 6

Which alloy characteristic makes white gold more prone to cracking during cold working than yellow gold?

Accepted Answer

Nickel or palladium alloying metals reduce ductility

Answer

Higher gold content

Answer

White gold has a lower melting point

Answer

White gold lacks any work-hardening ability

Question 7

A bench jeweler needs to open a jump ring cleanly without distorting it. What is the correct motion?

Accepted Answer

Twist one end forward and one end backward in opposite directions

Answer

Pull the two ends apart in a straight line

Answer

Bend both ends outward symmetrically

Answer

Rotate the entire ring in a circular motion