Journeyman Glazier Licensing Exam

Journeyman Glazier Licensing Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary purpose of glazing in construction?
• To provide insulation
• To allow light while maintaining enclosure
• To support the building’s load
• To prevent moisture from entering the building

Rationale: Glazing’s main function is to permit natural light transmission

while maintaining weather-tight enclosure and energy efficiency.

• Which of the following types of glass is most resistant to impact?
• Annealed glass
• Float glass
• Tempered glass
• Laminated glass 1 / 4

Rationale: Tempered glass undergoes heat treatment, increasing its

strength and resistance to impact compared to other types.

• What tool is primarily used for cutting glass?
• Hacksaw
• Glass cutter
• Chisel
• Utility knife

Rationale: A glass cutter scores the glass surface, allowing for clean

breaking along the score line.

• When installing insulated glass units (IGUs), what is the most important

factor to control?

• Paint coating
• Spacer color
• Seal integrity
• Edge beveling

Rationale: The seal prevents moisture infiltration and gas leakage between

panes, preserving insulation value.

• Which safety regulation must glaziers follow when handling glass at

height? 2 / 4

A. OSHA 1910.95

• OSHA 1926 Subpart M

C. NFPA 101

D. ANSI Z97.1

Rationale: OSHA 1926 Subpart M covers fall protection requirements for

construction work, including glazing at height.

• What type of glass is required in doors and sidelights subject to human

impact?

• Annealed glass
• Float glass
• Patterned glass
• Safety glass

Rationale: Safety glazing materials like tempered or laminated glass are

required by code in hazardous locations.

• Which organization sets safety standards for architectural glazing

materials?

A. ASME

B. ANSI

C. ISO

D. ASTM 3 / 4

Rationale: ANSI Z97.1 specifies performance requirements for safety

glazing materials in buildings.

• What is the purpose of a glazing gasket?
• To provide decoration
• To seal and cushion the glass
• To hold the frame together
• To align metal mullions

Rationale: Gaskets cushion glass against vibration and create an airtight,

watertight seal.

• The minimum clearance between glass and frame in a typical setting

block installation is:

• 1/8 inch
• 1/4 inch
• 3/16 inch
• 3/8 inch

Rationale: A 3/16" clearance allows for proper expansion, contraction, and

sealant performance.

• What is a common cause of glass breakage in curtain wall systems?
• Over-polishing
• / 4