TECHNICIAN CERTIFICATION
ACTUAL EXAM QUESTIONS AND CORRECT
DETAILED SOLUTIONS GRADED A+ WITH
RATIONALE
1. In blueprint reading, a double line around a panel usually represents:
A. Insulated glazing unit
B. Sealant joint
C. Mullion profile
D. Interior finish
Correct Answer: A
Rationale: Double lines indicate multi-pane units like IGUs.
2. Which factor MOST affects the lifespan of silicone sealants outdoors?
A. Ambient temperature fluctuations
B. Surface priming
C. Color
D. Installation crew experience
Correct Answer: A
Rationale: Repeated expansion and contraction stresses the sealant
over time.
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,3. Which inspection ensures proper curtain wall installation?
A. Visual only
B. Structural, sealant, alignment, and glass integrity checks
C. Sealant color check only
D. Vendor inspection only
Correct Answer: B
Rationale: Complete inspection verifies performance, safety, and aesthetic compliance.
4. Structural silicone joints require primer when:
A. Substrate is non-porous or difficult to bond
B. Joint is small
C. Silicone is clear
D. Temperature is high
Correct Answer: A
Rationale: Primers enhance adhesion on challenging substrates like aluminum or coated glass.
5. What is the function of a spacer in an insulating glass unit (IGU)?
A. Absorb vibration
B. Maintain air or gas gap between panes
C. Improve aesthetics
D. Support exterior glazing bead
Correct Answer: B
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,Rationale: Spacers define gap width for thermal and acoustic
performance.
6. Which field test verifies sealant adhesion and cure?
A. Tape pull test
B. Pencil hardness test
C. Light reflection
D. Joint width measurement
Correct Answer: A
Rationale: Tape test confirms surface bond integrity and cure.
AGMT PRACTICE EXAM
Part 2 (Continued): Installation, Sealants, Blueprint Reading, Codes & Standards, Quality Control
Questions 106–150
7. Which inspection method verifies proper IGU sealant penetration?
A. Visual inspection
B. Tape pull test
C. Destructive cross-section test
D. Thermal imaging
Correct Answer: C
Rationale: Cross-section inspection confirms the sealant fully contacts the spacer and panes.
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, 8. What is the proper slope for an exterior sill in glazing?
A. 0°
B. 1/8” per foot minimum
C. 1” per foot
D. Flat
Correct Answer: B
Rationale: Minimum slope ensures water drainage and reduces leakage
risk.
9. Which type of joint allows movement in all directions?
A. Butt joint
B. Lap joint
C. Rabbet joint
D. Tongue-and-groove
Correct Answer: A
Rationale: Butt joints with flexible sealant accommodate expansion, contraction, and building
movement.
10. What does ASTM C920 specify?
A. Sealant performance and classification
B. Glass thickness tolerance
C. Framing alignment
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