Certification Practice Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
(Covers: Safety, Tools & Equipment, Glass Handling, Installation, Sealants,
Blueprint Reading, Codes & Standards, and Quality Control)
1. What is the primary federal safety regulation that governs
construction site safety for glass and glazing work?
a) ASTM E1300
b) ANSI Z97.1
c) OSHA 29 CFR 1926
d) NFRC 100
Rationale: OSHA 29 CFR 1926 sets construction safety standards,
including those for glass installation and elevated work.
2. Which personal protective equipment (PPE) should always be worn
when handling glass?
a) Hard hat and steel-toe boots only
b) Cut-resistant gloves, safety glasses, and long sleeves
, c) Respirator and earmuffs
d) Welding helmet and apron
Rationale: PPE must protect against cuts and eye injuries; gloves,
sleeves, and safety glasses are mandatory for glass handling.
3. What is the safest way to transport large sheets of glass manually?
a) Flat in horizontal position
b) Dragged on the floor
c) Vertically on edge using glass carriers
d) Stacked without supports
Rationale: Glass is strongest when transported vertically; glass
carriers maintain control and reduce risk of breakage.
4. What type of crane attachment is commonly used to lift large glass
panels?
a) Sling hook
b) Magnet
c) Vacuum lifter
d) Clamp chain
Rationale: Vacuum lifters provide secure, even suction across the
panel, minimizing stress and breakage.
5. When setting a glass panel into a curtain wall frame, what material
cushions the glass edges?
a) Silicone sealant
b) Setting blocks
, c) Spacer tape
d) Backer rod
Rationale: Setting blocks distribute the load evenly and prevent
direct contact between glass and frame.
6. What is the primary function of a glazing gasket?
a) To support the glass weight
b) To act as insulation
c) To seal and cushion the glass in the frame
d) To hold the frame in place
Rationale: Gaskets prevent air and water infiltration while
cushioning glass movement.
7. Which type of glass is most commonly required for safety glazing in
doors?
a) Tempered glass
b) Annealed glass
c) Laminated float glass
d) Wired glass
Rationale: Tempered glass meets safety glazing standards by
breaking into small, less harmful pieces.
8. When should a suction cup lifter be inspected?
a) Monthly
b) Weekly
c) Before each use
, d) Annually
Rationale: Each use inspection ensures the suction seals are intact
and the device operates safely.
9. Which tool is used to measure the squareness of a window or door
frame?
a) Level
b) Tape measure
c) Framing square
d) Chalk line
Rationale: A framing square verifies 90° angles to ensure the frame is
properly aligned.
10. What does the acronym “NFRC” stand for?
a) National Fire Rating Council
b) National Fenestration Rating Council
c) National Frame Regulation Committee
d) New Federal Roofing Code
Rationale: NFRC establishes energy performance ratings for
windows, doors, and glazing systems.
11. What is the minimum required safety factor for glass lifting
devices according to OSHA?
a) 1.5
b) 3.0
c) 5.0