Life Safety & Emergency Systems Flashcards
7 cards from real CFI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Life Safety & Emergency Systems flashcards as text
In a sprinkler system, a tamper switch on a control valve is required to send a supervisory signal to the fire alarm panel within how many seconds of the valve being moved from its full-open position?
Answer: Before the valve is 1/5 of the way closed
NFPA 72 and NFPA 13 require supervisory signals to be initiated before a valve has traveled one-fifth of the distance from its normal position.
What is the primary purpose of a fire command center (FCC) in a high-rise building?
Answer: To provide a centralized location for emergency personnel to monitor and control life safety systems
The fire command center consolidates controls and displays for all life safety systems so responding emergency personnel can monitor and manage an incident from one location.
Under IFC and NFPA 101, a delayed egress locking system may hold an exit door closed for a maximum of how many seconds after the initiation of a request to exit?
Answer: 30 seconds
Delayed egress locks are permitted to delay door release for a maximum of 30 seconds after the occupant initiates an exit request, provided specific conditions are met.
During an inspection, you discover a sprinkler head has been painted over. What is the required corrective action according to NFPA 13?
Answer: Replace the sprinkler head immediately
NFPA 13 requires that any sprinkler head that has been painted, coated, or otherwise altered be replaced immediately, as paint can alter its thermal response.
Which section of NFPA 72 governs the installation and performance requirements for mass notification systems (MNS)?
Answer: Chapter 24
NFPA 72 Chapter 24 covers the requirements for emergency communications systems, including mass notification systems.
A fire inspector finds that the required two means of egress from a floor are both through the same corridor before diverging. This arrangement is generally prohibited because:
Answer: A single hazard event could simultaneously block both paths
If both exit paths share a common corridor segment, a single fire or smoke condition could render both exits inaccessible simultaneously, defeating the purpose of two separate exits.
Under NFPA 110, a Level 1 emergency power supply system (EPSS) is required in occupancies where failure of the system would:
Answer: Result in loss of human life or serious injuries
A Level 1 EPSS is required where failure to provide emergency power could directly result in loss of human life or serious physical harm to occupants.