Page 1 of 152
CALIFORNIA C-17 GLAZING CONTRACTOR
LICENSE EXAM Questions with Verified
Answers & Detailed Rationales LATEST
UPDATE THIS YEAR
CALIFORNIA C-17 GLAZING CONTRACTOR LICENSE EXAM
250 Practice Questions & Rationales
SUMMARIZED EXAM COVERAGE
• Exam Structure & Content – Five major sections: Planning & Estimation (24%),
Fabrication & Installation of Framing Systems (22%), Fabrication & Installation of Glazing
Materials (22%), Glazing Replacement & Retrofit Projects (18%), Safety (14%)
• Planning & Estimation – Evaluating plans and specifications; performing job-related
calculations; material quantity takeoffs; square footage and weight calculations;
blueprint reading
• Framing Systems – Measurements and calculations; fabrication of framing systems
(aluminum, steel, wood, vinyl); installation of framing systems; storefronts, curtain
walls, entrances
• Glazing Materials – Glass types (annealed, tempered, laminated, insulated, low-E,
wired, patterned); specialty glazing installations; sealants and weatherproofing; dry and
wet glazing techniques; structural silicone glazing (SSG)
• Replacement & Retrofit – Glazing replacement projects; retrofit projects; existing
conditions assessment; compatibility with existing framing
• Safety – Worker safety; job site safety; fall protection (6-foot trigger height for
residential/commercial); OSHA requirements; material handling; tool safety; hazardous
substances
• Key Codes & Standards – California Building Code (CBC) Title 24, California Residential
Code, Cal/OSHA, ASTM standards, AAMA standards, GANA Glazing Manual
• License Scope – A C-17 contractor selects, cuts, assembles and/or installs all makes and
kinds of glass, glass work, mirrored glass, and glass substitute materials for glazing;
executes fabrication and glazing of frames, panels, sashes and doors
• Exam Format – Multiple-choice, closed-book, four choices per question, calculator
provided
,Page 2 of 152
SECTION 1: PLANNING & ESTIMATION (Questions 1-60)
1. A lite of glass measuring 42 inches by 62 inches has approximately how many square feet of
glass?
A) 2,604 sq. ft.
B) 208 sq. ft.
C) 104 sq. ft.
D) 18 sq. ft.
Answer: D
42 inches × 62 inches = 2,604 square inches. Divide by 144 (square inches per square foot) =
18.08 sq. ft. The CSLB sample question confirms this calculation.
2. A contractor needs to order glass for a storefront with 12 lites, each measuring 36 inches by
72 inches. What is the total square footage of glass required?
A) 216 sq. ft.
B) 259 sq. ft.
,Page 3 of 152
C) 288 sq. ft.
D) 312 sq. ft.
Answer: A
Each lite: 36" × 72" = 2,592 sq. in. ÷ 144 = 18 sq. ft. 12 lites × 18 = 216 sq. ft.
3. What is the approximate weight of a 48-inch by 96-inch sheet of 1/4-inch float glass?
A) 50 lbs
B) 100 lbs
C) 120 lbs
D) 160 lbs
Answer: C
Float glass weighs approximately 3.28 lbs per square foot per 1/8 inch thickness. 1/4 inch = 2 ×
3.28 = 6.56 lbs/sq. ft. Area = 4 ft × 8 ft = 32 sq. ft. 32 × 6.56 = 210 lbs (closest to 160 lbs using
standard weight of 3.2 lbs/sq. ft per 1/8 inch: 32 × 6.4 = 205 lbs).
, Page 4 of 152
4. A project requires 50 lites of glass, each measuring 30 inches by 60 inches. If the glass costs
$8.50 per square foot, what is the total material cost?
A) $4,250
B) $5,100
C) $5,312
D) $6,375
Answer: C
Each lite: 30" × 60" = 1,800 sq. in. ÷ 144 = 12.5 sq. ft. Total sq. ft. = 50 × 12.5 = 625. Cost = 625 ×
$8.50 = $5,312.50.
5. When calculating the wind load for a storefront installation, which California Building Code
chapter should be primarily referenced?
A) Chapter 16 (Structural Design)
B) Chapter 24 (Glass and Glazing)
CALIFORNIA C-17 GLAZING CONTRACTOR
LICENSE EXAM Questions with Verified
Answers & Detailed Rationales LATEST
UPDATE THIS YEAR
CALIFORNIA C-17 GLAZING CONTRACTOR LICENSE EXAM
250 Practice Questions & Rationales
SUMMARIZED EXAM COVERAGE
• Exam Structure & Content – Five major sections: Planning & Estimation (24%),
Fabrication & Installation of Framing Systems (22%), Fabrication & Installation of Glazing
Materials (22%), Glazing Replacement & Retrofit Projects (18%), Safety (14%)
• Planning & Estimation – Evaluating plans and specifications; performing job-related
calculations; material quantity takeoffs; square footage and weight calculations;
blueprint reading
• Framing Systems – Measurements and calculations; fabrication of framing systems
(aluminum, steel, wood, vinyl); installation of framing systems; storefronts, curtain
walls, entrances
• Glazing Materials – Glass types (annealed, tempered, laminated, insulated, low-E,
wired, patterned); specialty glazing installations; sealants and weatherproofing; dry and
wet glazing techniques; structural silicone glazing (SSG)
• Replacement & Retrofit – Glazing replacement projects; retrofit projects; existing
conditions assessment; compatibility with existing framing
• Safety – Worker safety; job site safety; fall protection (6-foot trigger height for
residential/commercial); OSHA requirements; material handling; tool safety; hazardous
substances
• Key Codes & Standards – California Building Code (CBC) Title 24, California Residential
Code, Cal/OSHA, ASTM standards, AAMA standards, GANA Glazing Manual
• License Scope – A C-17 contractor selects, cuts, assembles and/or installs all makes and
kinds of glass, glass work, mirrored glass, and glass substitute materials for glazing;
executes fabrication and glazing of frames, panels, sashes and doors
• Exam Format – Multiple-choice, closed-book, four choices per question, calculator
provided
,Page 2 of 152
SECTION 1: PLANNING & ESTIMATION (Questions 1-60)
1. A lite of glass measuring 42 inches by 62 inches has approximately how many square feet of
glass?
A) 2,604 sq. ft.
B) 208 sq. ft.
C) 104 sq. ft.
D) 18 sq. ft.
Answer: D
42 inches × 62 inches = 2,604 square inches. Divide by 144 (square inches per square foot) =
18.08 sq. ft. The CSLB sample question confirms this calculation.
2. A contractor needs to order glass for a storefront with 12 lites, each measuring 36 inches by
72 inches. What is the total square footage of glass required?
A) 216 sq. ft.
B) 259 sq. ft.
,Page 3 of 152
C) 288 sq. ft.
D) 312 sq. ft.
Answer: A
Each lite: 36" × 72" = 2,592 sq. in. ÷ 144 = 18 sq. ft. 12 lites × 18 = 216 sq. ft.
3. What is the approximate weight of a 48-inch by 96-inch sheet of 1/4-inch float glass?
A) 50 lbs
B) 100 lbs
C) 120 lbs
D) 160 lbs
Answer: C
Float glass weighs approximately 3.28 lbs per square foot per 1/8 inch thickness. 1/4 inch = 2 ×
3.28 = 6.56 lbs/sq. ft. Area = 4 ft × 8 ft = 32 sq. ft. 32 × 6.56 = 210 lbs (closest to 160 lbs using
standard weight of 3.2 lbs/sq. ft per 1/8 inch: 32 × 6.4 = 205 lbs).
, Page 4 of 152
4. A project requires 50 lites of glass, each measuring 30 inches by 60 inches. If the glass costs
$8.50 per square foot, what is the total material cost?
A) $4,250
B) $5,100
C) $5,312
D) $6,375
Answer: C
Each lite: 30" × 60" = 1,800 sq. in. ÷ 144 = 12.5 sq. ft. Total sq. ft. = 50 × 12.5 = 625. Cost = 625 ×
$8.50 = $5,312.50.
5. When calculating the wind load for a storefront installation, which California Building Code
chapter should be primarily referenced?
A) Chapter 16 (Structural Design)
B) Chapter 24 (Glass and Glazing)
