Fire Detection & Suppression Systems Flashcards
7 cards from real FST practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Fire Detection & Suppression Systems flashcards as text
In a clean agent suppression system using FK-5-1-12, the system is designed to suppress fire primarily by:
Answer: Absorbing heat and interrupting the chemical chain reaction
FK-5-1-12 (Novec 1230) suppresses fire chiefly through heat absorption and chemical chain reaction interruption, with minimal oxygen reduction.
What is the minimum number of audible notification appliances required on each floor of a building per NFPA 72?
Answer: At least one per floor such that the alarm is audible throughout
NFPA 72 requires that audible notification appliances be sufficient to produce the required sound pressure levels throughout the entire floor.
Which suppression agent is most appropriate for protecting a computer server room where equipment damage from agent residue is a concern?
Answer: Halon 1301 replacement (clean agent)
Clean agents leave no residue after discharge, making them ideal for protecting sensitive electronic equipment like server rooms.
A deluge sprinkler system is best suited for which type of hazard?
Answer: High-hazard areas where rapid fire spread is expected
Deluge systems have open sprinkler heads and discharge water simultaneously over the entire protected area, making them ideal for high-hazard occupancies with fast fire spread potential.
When a duct smoke detector activates, what is its primary intended action?
Answer: Shut down the HVAC system to prevent smoke spread
Duct smoke detectors are primarily designed to shut down HVAC systems upon detecting smoke to prevent the spread of smoke and toxic gases through the ventilation system.
The 'listed' designation on fire protection equipment means it has been:
Answer: Evaluated by a recognized testing laboratory and found to meet applicable standards
A 'listed' designation means the equipment has been tested by an accredited third-party laboratory (such as UL) and found to meet specific safety standards.
How often must portable fire extinguishers be given a thorough internal examination (overhaul) per NFPA 10?
Answer: Every 6 years
NFPA 10 requires a 6-year internal examination for stored-pressure extinguishers, where the unit is emptied, inspected internally, recharged, and re-tagged.