CBJ Safety and Compliance 3

Question 1

What is the primary hazard associated with prolonged skin contact with casting investment powder?

Accepted Answer

Allergic dermatitis and irritation due to calcium sulfate and silica content

Answer

Investment powder contains silica and calcium sulfate, which can cause skin irritation and dermatitis with repeated or prolonged contact.

Question 2

When operating a burnout kiln in a jewelry studio, the work area must have:

Accepted Answer

Adequate ventilation to exhaust combustion gases and organic binder fumes

Answer

Burning out organic binders from investment molds releases toxic fumes and combustion gases that must be exhausted to prevent health hazards.

Question 3

Which personal protective equipment is required when operating an ultrasonic cleaner with solvent-based solution?

Accepted Answer

Chemical-resistant gloves and eye protection

Answer

Solvent-based ultrasonic cleaning solutions can splash and are absorbed through the skin, requiring chemical-resistant gloves and eye protection.

Question 4

The Globally Harmonized System (GHS) pictogram showing a flame over a circle indicates:

Accepted Answer

Oxidizer that can intensify fires

Answer

The GHS oxidizer pictogram—a flame above a circle—identifies substances that can release oxygen and intensify or cause fires.

Question 5

How should compressed gas cylinders (e.g., oxygen and acetylene) be stored in the jewelry workshop?

Accepted Answer

Chained or strapped upright and separated by a fire-rated barrier or 20 feet

Answer

Cylinders must be secured upright to prevent falling and separated to reduce the risk of a fire involving both fuel and oxidizer gases simultaneously.

(CBJ) Certified Bench Jeweler Practice Test

(CBJ) Certified Bench Jeweler Practice Test

CBJ Safety and Compliance 3