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Jewelers of America Certified Bench Jeweler Technician Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf
- Which of the following solders has the highest melting point?
- Easy solder
- Hard solder
- Medium solder
- Extra easy solder
- What is the primary purpose of a pickle solution in jewelry making?
- To polish metal surfaces
- To remove oxidation and flux after soldering
- To color the metal 1 / 3
Hard solder has the highest melting point, allowing sequential soldering without previous joints melting.
- To soften metal before forming
- Which alloying element in gold jewelry primarily adds whiteness?
- Copper
- Silver
- Nickel
- Zinc
- What is the purpose of annealing metal?
- To harden it
- To soften it for further working
- To change its color
- To polish it
- What is a bezel setting used for?
- Holding a pearl
- Holding a stone with prongs
- Encircling a gemstone with a metal rim
- Mounting a cabochon only
Pickle cleans oxidation and flux residues after heating processes like soldering.
Nickel is used to whiten gold in white gold alloys.
Annealing relieves internal stresses and softens metal for easier forming.
A bezel setting secures a gemstone with a continuous metal rim around its edge. 2 / 3
- Which saw blade size is finest among the following?
- 0
B. 2/0
C. 4/0
- 2
- Which gas mixture is most commonly used in jewelry soldering torches?
- Propane and nitrogen
- Butane and carbon dioxide
- Propane and oxygen
- Hydrogen and helium
- What does karat indicate in gold?
- The density
- The hardness
- The purity of gold in 24 parts
- The weight of the jewelry
- Which type of file is best for removing large amounts of metal quickly?
- Coarse-cut file
- Fine-cut file
- / 3
The higher the number before the “/0,” the finer the blade; 4/0 is finer than 2/0.
Propane and oxygen provide a controllable, clean-burning flame ideal for soldering metals.
Karat measures the proportion of pure gold; 24K is pure gold.
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