Certification Exam Questions With Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What is the primary purpose of a tempered glass in architectural
applications?
A. To provide aesthetic appearance
B. To increase strength and safety
C. To allow easy cutting on-site
D. To reduce energy costs
Tempered glass is heat-treated to increase its strength. When broken,
it shatters into small, blunt pieces, reducing the risk of injury.
2. Which metal is most commonly used for curtain wall framing due
to its lightweight and corrosion resistance?
A. Steel
B. Aluminum
C. Copper
D. Titanium
,Aluminum is widely used in curtain walls because it is lightweight,
strong, and naturally corrosion-resistant, making it ideal for exterior
applications.
3. What does the term “spandrel glass” refer to?
A. Glass used in flooring
B. Opaque or frosted glass concealing structural elements
C. Tempered glass in doors
D. Bullet-resistant glass
Spandrel glass covers areas of a building between floors to hide
structural or mechanical components, often opaque or frosted.
4. When installing glass in a metal frame, what is the recommended
material for cushioning the glass?
A. Silicone sealant only
B. Setting blocks or gaskets
C. Mortar
D. Adhesive tape
Setting blocks or gaskets prevent direct contact between glass and
frame, reducing stress points and minimizing breakage.
5. Which glazing method uses a continuous sealant to secure glass
into a frame without mechanical fasteners?
A. Dry glazing
, B. Wet glazing
C. Point-supported glazing
D. Structural silicone glazing
Wet glazing involves applying a sealant continuously along the
perimeter of the glass, bonding it to the frame while providing
weatherproofing.
6. What is the purpose of a thermal break in aluminum framing?
A. To reduce heat transfer and improve energy efficiency
B. To increase frame strength
C. To allow glass movement
D. To simplify installation
Thermal breaks are insulating barriers within metal frames that
reduce heat conduction, helping meet energy codes and reduce
condensation.
7. Which of the following is a typical thickness for standard annealed
float glass used in storefronts?
A. 1/8 inch (3 mm)
B. 1/4 inch (6 mm)
C. 1/2 inch (12 mm)
D. 3/8 inch (10 mm)
, 1/4 inch (6 mm) is a common standard thickness for annealed float
glass in storefront applications, balancing strength and cost.
8. What is the main difference between laminated and tempered
glass?
A. Laminated glass is stronger
B. Laminated glass holds together when broken
C. Tempered glass is opaque
D. Tempered glass cannot be insulated
Laminated glass consists of two or more glass layers with a plastic
interlayer that holds shards together if broken, enhancing safety.
9. In curtain wall construction, what is a “mullion”?
A. A type of sealant
B. Vertical or horizontal framing member
C. A glass panel
D. A gasket
Mullions are the structural members that hold and support glass
panels in curtain walls, providing rigidity and alignment.
10. Which type of sealant is typically used for structural silicone
glazing applications?
A. Acrylic
B. Silicone