CBJ Quality Assurance and Improvement 2

Question 1

What does a loupe magnification of 10x mean when inspecting a finished piece?

Accepted Answer

The image appears 10 times larger than actual size

Answer

The piece is examined under UV light at 10 watts

Answer

Ten separate focal points are checked simultaneously

Answer

The piece is rotated 10 times during inspection

Question 2

Which of the following is a sign of poor solder flow in a bezel setting?

Accepted Answer

Pitting or voids visible at the solder seam

Answer

Solder that flows evenly around the entire joint

Answer

A bright, consistent color matching the metal

Answer

Slight shrinkage at the joint after cooling

Question 3

When quality-checking prong tips on a claw setting, which defect is most likely to cause stone loss?

Accepted Answer

Prongs that are undercut or too thin at the tip

Answer

Prongs that are too thick

Answer

Prongs that are overly polished

Answer

Prongs that extend slightly beyond the girdle

Question 4

What is the primary purpose of performing a flex test on a ring shank?

Accepted Answer

To detect weak solder joints or metal fatigue

Answer

To check the ring's metal color consistency

Answer

To verify the ring size is accurate

Answer

To confirm the surface finish is uniform

Question 5

Which tool is most appropriate for measuring the inside diameter of a ring to verify size?

Accepted Answer

Ring mandrel with size markings

Answer

Digital caliper

Answer

Micrometer

Answer

Millimeter gauge card

Question 6

A jeweler notices micro-porosity in a cast piece after polishing. What was the most likely cause during production?

Accepted Answer

Gas entrapment or shrinkage during the casting process

Answer

Over-polishing with a hard buff

Answer

Using too fine a solder grade

Answer

Excessive pickling time in acid

Question 7

What quality issue does 'firescale' represent on sterling silver jewelry?

Accepted Answer

Subsurface copper oxide deposits that appear as gray blotches

Answer

A surface crack caused by rapid quenching

Answer

Excess solder that has flowed onto the surface

Answer

Oxidation caused by prolonged ultrasonic cleaning