10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The AGMT exam has 125 questions and runs 2 hours.
These 10 free AGMT questions are organized by exam domain, so you can see how each part of the Architectural Glass & Metal Technician blueprint is tested. Reveal the answer and explanation under each question.
A 48-in by 84-in IGU is ready for lifting. The fabricator lists 6.8 lb/ft² for the complete IGU, including both lites and its edge components. The load chart permits 230 lb in the planned configuration, including a 24-lb lifting adapter. All other lift checks have passed. Which entry correctly completes the load check?
Correct answer: A - 214.4 lb total; within the 230-lb limit.
A vacuum lifter has raised an IGU a few inches above its padded rack when the low-vacuum alarm sounds. One circuit's reading is falling; the other remains within its operating range. The rack is still directly below the unit, and the landing area is clear. What takes priority?
Correct answer: B - Keep workers clear; lower and secure the glass on the rack.
A layout crew must mark the west face of a vertical mullion on the floor. The approved plan locates the mullion centerline 31 in east of Control Line A. The mullion is 2 1/2 in wide and symmetric about that centerline. Which offset belongs on the west-face mark?
Correct answer: B - 29 3/4 in east of Control Line A.
An IGU order specifies two lites of identical glass makeup except for a low-e coating on surface #3. During a dry fit, the glazier confirms that the coating faces the sealed cavity but is on the lite currently facing outdoors. How should the unit be oriented to match the order?
Correct answer: A - Reverse the IGU so the coated lite is on the room side.
A captured-curtainwall installation log records pressure-plate screw torque of 4.8 ft-lb, measured with a calibrated tool within its rated measuring range. The system instruction specifies 60 +/- 5 in-lb. Correct screws, spacing, tightening sequence, and gasket seating have been verified, with no distortion. What does the torque record establish?
Correct answer: D - The torque is within the permitted range; this check passes.
A curtainwall mullion has a lower anchor assigned to carry its dead load and an upper anchor detailed to resist wind while allowing vertical slip. An installer proposes rigidly welding the upper sliding connection to eliminate play. What is the principal consequence of that change?
Correct answer: A - The restrained movement could impose unintended forces on framing and glass.
A perimeter weatherseal repeatedly tears after seasonal movement. A cutout shows the specified bead dimensions, sound adhesion to both joint faces, and a continuous bond to the bottom of the recess; no backing or bond breaker is present. The sealant's movement rating is adequate for the calculated movement. Which change addresses the installation defect?
Correct answer: D - Prevent adhesion at the back when rebuilding the joint.
A metal glazing detail requires two setting blocks for an IGU with a face area of 52 ft². Each block must be at least 0.1 in long per square foot of that area, with a 4-in minimum. Blocks must be 85 +/- 5 Shore A, and shims must be at least as hard as the blocks. All choices otherwise fit the channel, support both lites, preserve drainage, and have approved material compatibility. Which combination meets the remaining requirements?
Correct answer: C - Two 6-in blocks, 85 Shore A, on 88-Shore-A shims.
During a controlled storefront drainage check, water is introduced directly into the sill receptor while the glass-to-frame and perimeter joints remain dry. The exterior weeps discharge freely, yet water enters the wall cavity at the sill-to-jamb end without backing up in the receptor. Which detail should be examined first?
Correct answer: C - The sill end-dam seal at the jamb.
An owner reports that newly installed IGUs are fogging. On a cold morning, the moisture wipes completely off the room-side face; both cavity-facing surfaces remain clear. The indoor air has a dew point of 13°C, and the room-side glass measures 9°C. No cracks or displaced glazing components are found. Which interpretation and response fit this evidence?
Correct answer: D - Room-side condensation; assess indoor moisture and airflow at the glass.
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