Jewelry Design Jewelry Design MCQ 5 — Questions and Answers
Question 1: What is the role of an 'investment' material in the lost-wax casting process?
- It is a plaster-like mold material that surrounds the wax model and withstands the heat of burnout and metal casting (Correct answer)
- It is the wax injected into the rubber mold
- It is the flux applied before soldering the sprue
- It is the chemical used to clean the finished casting
Correct answer: It is a plaster-like mold material that surrounds the wax model and withstands the heat of burnout and metal casting
Investment is a refractory gypsum-based material mixed with water and poured around the wax model; it hardens into a mold that can withstand high-temperature burnout and metal injection.
Question 2: What is 'granulation' in ancient and contemporary jewelry making?
- A technique of fusing tiny spheres of metal onto a surface without visible solder (Correct answer)
- The process of grinding gemstones into round cabochons
- A method of texturing metal by stamping with a patterned die
- The chemical etching of metal to create a rough surface
Correct answer: A technique of fusing tiny spheres of metal onto a surface without visible solder
Granulation is a technique—perfected by ancient Etruscans—in which tiny metal balls are bonded to a metal surface through diffusion bonding or a copper-salt process, leaving no visible solder.
Question 3: Which of the following alloys is typically used as the base metal for gold-filled jewelry?
- Brass or copper (Correct answer)
- Sterling silver
- Stainless steel
- Titanium
Correct answer: Brass or copper
Gold-filled jewelry is made by heat-bonding a layer of karat gold to a brass or copper core, with the gold layer comprising at least 1/20th of the total weight.
Question 4: In jewelry rendering and design sketching, what is a 'trois-quarts' (three-quarter) view used for?
- To show the three-dimensional form of a piece by depicting it at a 45-degree angle between front and side views (Correct answer)
- To illustrate only the setting and not the gemstone
- To show the back construction of a clasp mechanism
- To depict the piece at actual scale with measurements
Correct answer: To show the three-dimensional form of a piece by depicting it at a 45-degree angle between front and side views
A three-quarter view positions the piece at roughly 45 degrees, allowing the designer to communicate both the front design and the side depth in a single illustration.
Question 5: Which hardening process for gold alloys involves heating the metal to a specific temperature and then quenching it rapidly in water?
- Age hardening (precipitation hardening)
- Solution annealing followed by rapid quench (Correct answer)
- Work hardening through rolling
- Case hardening with a carbon atmosphere
Correct answer: Solution annealing followed by rapid quench
Solution annealing followed by rapid quenching keeps alloying elements in a supersaturated solid solution; subsequent age hardening then precipitates fine particles that harden the alloy.
Question 6: What does 'planishing' a metal surface accomplish?
- Smooths and hardens metal by compressing surface irregularities with a polished hammer (Correct answer)
- Removes metal by grinding with an abrasive wheel
- Creates a deliberate texture by striking with a peen hammer
- Applies a chemical darkening agent to create contrast
Correct answer: Smooths and hardens metal by compressing surface irregularities with a polished hammer
Planishing uses a highly polished hammer and stake to compress and smooth raised metal, removing hammer marks and work-hardening the surface simultaneously.
Question 7: Which gemstone phenomenon is described as a floating six-rayed star visible on the surface of a cabochon-cut stone?
- Asterism (Correct answer)
- Adularescence
- Chatoyancy
- Labradorescence
Correct answer: Asterism
Asterism is the optical effect where intersecting needle-like inclusions reflect light to produce a star pattern on the surface of a cabochon gemstone.
Jewelry Design Jewelry Design MCQ 5
What is the role of an 'investment' material in the lost-wax casting process?