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Académie
Garage Door Technician
Garage Door Troubleshooting & Diagnostics (Canada)
Commercial & Advanced Diagnostics
Vérification des connaissances
Commercial & Advanced Diagnostics
Vérification des connaissances
Vérification des connaissances
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What must be tested on a fire-rated door during maintenance?
A
The paint color
B
The remote range
C
The weatherseal compression
D
Fusible links, gravity-close operation, and closing speed
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