Means of Egress Flashcards

Under IBC Section 1028.1, what is the maximum percentage of required exits that may discharge through the level of exit discharge (e.g., a lobby)?

Answer: 50%

IBC Section 1028.1 limits exit discharge through the level of discharge to not more than 50% of the required number and capacity of exits.

What is the minimum number of exits required for a building story with an occupant load exceeding 1,000 persons per IBC Table 1006.3.3?

Answer: 4

IBC Table 1006.3.3 requires a minimum of 4 exits for any story with an occupant load greater than 1,000 persons.

Per IBC Section 1010.1.7, an exterior floor or landing at a means of egress door shall not be lower than the top of the threshold by more than how much?

Answer: 1/2 inch

IBC Section 1010.1.7 allows a maximum drop of 1/2 inch from the top of the threshold to the exterior floor or landing.

What is the maximum riser height permitted for stairways in a means of egress under IBC Section 1011.5.2?

Answer: 7 inches

IBC Section 1011.5.2 sets the maximum riser height for means of egress stairways at 7 inches.

Under IBC Section 1009.1, how many accessible means of egress must be provided from an accessible space when a building story has two or more required exits?

Answer: Two

IBC Section 1009.1 requires at least two accessible means of egress from any accessible space whenever two or more exits are required.

What is the minimum required depth in the direction of travel for a landing at a means of egress door per IBC Section 1010.1.4?

Answer: 44 inches

IBC Section 1010.1.4 requires a landing depth of not less than 44 inches in the direction of travel at each means of egress door.

Under IBC Section 1003.5, a walking surface within a means of egress is classified as a ramp when its slope exceeds which ratio?

Answer: 1:20

IBC Section 1003.5 classifies any walking surface with a slope steeper than 1 unit vertical in 20 units horizontal (1:20) as a ramp.