FLSD Building Systems Oversight 5

Question 1

An FLSD notices that several smoke dampers in the HVAC ductwork have been propped open with wooden wedges by HVAC maintenance personnel. What immediate action is required?

Accepted Answer

Remove the wedges immediately and restore dampers to operational status, then document the violation

Answer

Wedged-open smoke dampers defeat fire compartmentalization and must be restored immediately; the violation must be documented per fire safety plan requirements.

Question 2

A high-rise office building's fire alarm control panel displays a 'supervisory' signal from the sprinkler system's water flow valve. What does a supervisory signal indicate versus an alarm signal?

Accepted Answer

A supervisory signal indicates an abnormal condition (e.g., closed valve) requiring attention; an alarm signal indicates water flow or smoke

Answer

Supervisory signals warn of conditions that could impair system operation (like a partially closed valve) and require investigation, while alarm signals indicate fire or water flow.

Question 3

Under NYC Building Code, what is the minimum fire resistance rating required for ductwork penetrations through a 2-hour fire-rated floor/ceiling assembly without a fire damper?

Accepted Answer

The duct must be wrapped with 2-hour rated enclosure

Answer

Where fire dampers are not provided, ductwork penetrating rated assemblies must be enclosed in a shaft or wrapped with materials providing equivalent fire resistance.

Question 4

What does the term 'common path of travel' mean in the context of building egress design that an FLSD must understand?

Accepted Answer

The portion of exit access where occupants must travel in a single direction before reaching a choice of two exits

Answer

Common path of travel is the distance occupants must walk before having a choice of two separate exits; building codes limit this distance to reduce risk.

Question 5

A building's wet-pipe sprinkler system in an unheated parking garage begins discharging water in winter despite no fire. What is the most likely cause?

Accepted Answer

A frozen and burst sprinkler pipe due to temperatures below 40°F

Answer

Wet-pipe systems in unheated spaces are vulnerable to freezing; water in the pipes freezes, expands, and can rupture pipes or heads causing accidental discharge.

FLSD - Fire Life Safety Director Practice Test

FLSD - Fire Life Safety Director Practice Test

FLSD Building Systems Oversight 5