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Showing posts with the label Doors

Fire door time ratings

An exterior wall with a 2 hour rating requires a door assembly rating (standard door test NFPA 252) of 1 1/2 hours. If the exterior wall rating is increased to 3 hours, what is the required door assembly rating? A. 1 1/2, B. 2 C. 2 1/2, D. 3

Door types

Which of the following can be used as an exit door? A. surface sliding, B. double acting, C. operable partition, D. offset pivoted, E. none of the above

Revolving doors

IBC allows revolving doors to be used as egress doors only when what 2 conditions are met? Answer 1. the leaves of the door can collapse in the direction of egress (force not greater than 130lbs) 2. aggregate width of egress is at least 36 inches ARE 4.0 exam prep: BDCS

Door frames

What is the maximum fire-rating for a wood door in a wood frame? A. 20-minutes B. 30-minutes C. 45-minutes D. 1-hour Answer C. 45-minutes, a 1-hr rated door requires a rated metal frame. ARE 4.0 exam prep: BDCS

Fire-rated doors

What material must be used for the hinges on a fire-rated door? Answer Either steel or stainless steel hinges must be used. Architect Registration Exam 4.0 study: BDCS

Door hardware components

Which of the following types of hardware controls the distance a door can be opened, preventing damage to the door and surrounding construction? I. Panic bar II. Door stop III. Automatic door bottom IV. Closer V. Pivot Answer IV. Closer. Closers return the door to a closed position after use. ARE 4.0 exam prep: BDCS