F89 Building Construction and Means of Egress

Question 1

In a New York City high-rise building, a 'means of egress' consists of which three components?

Accepted Answer

Exit access, exit, and exit discharge

Answer

Under the NYC Building Code and NFPA 101, a complete means of egress has three parts: the exit access (path leading to the exit), the exit itself (the protected stairwell or other protected way), and the exit discharge (path from the exit to the public way). Understanding this structure is fundamental to the FLSD's evacuation planning duties.

Question 2

A 'fire door' in a high-rise building stairwell is required to be:

Accepted Answer

Self-closing and self-latching, maintaining its rated fire resistance when closed

Answer

Fire doors must be self-closing (equipped with a door closer) and self-latching so they automatically return to the closed position, maintaining the fire-resistance rating of the stairwell enclosure. Propping fire doors open — a common violation — eliminates their protective function. Permanent locking from the stairwell side traps evacuating occupants.

Question 3

Under NYC Building Code, how many means of egress (exits) are generally required per floor in a high-rise office building?

Accepted Answer

A minimum of two remote exits to ensure occupants always have an alternate path if one is blocked

Answer

NYC Building Code requires a minimum of two exits per floor, positioned remotely from each other so that a fire or smoke condition blocking one exit still leaves occupants a viable egress path. This redundancy is a cornerstone of high-rise life safety.

Question 4

During a fire emergency, why are stairwells in high-rise buildings positively pressurized?

Accepted Answer

To prevent smoke from entering the stairwell, keeping the evacuation path clear

Answer

Stairwell pressurization systems push clean air into the stairwell at a pressure higher than adjacent floors, creating an airflow that prevents smoke infiltration when stairwell doors are opened. Keeping the stairwell smoke-free is critical because it is the primary evacuation and firefighter access path.

Question 5

A Fire and Life Safety Director notices that an exit sign on the 15th floor is not illuminated. What action is required?

Accepted Answer

Report the deficiency immediately to building management for repair and document it in the fire safety log; post a temporary indicator if required

Answer

Exit signs must be continuously illuminated and are code-required life safety components. A non-illuminated sign is an immediately reportable deficiency. The FLSD must document it and notify building management for prompt repair. Removing the sign creates greater hazard; waiting for routine maintenance is not acceptable for a life safety deficiency.

F89 - Fire and Life Safety Director Practice Test

F89 - Fire and Life Safety Director Practice Test

F89 Building Construction and Means of Egress