Basic Flashcards
7 cards from real CFPS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Basic flashcards as text
The 'sprinkler activation time index' is primarily influenced by which two sprinkler characteristics?
Answer: RTI (Response Time Index) and Conductance (C-factor)
RTI measures a sprinkler's thermal sensitivity, while the C-factor accounts for heat loss to the sprinkler body, together predicting activation timing.
Which NFPA standard addresses inspection, testing, and maintenance (ITM) of water-based fire protection systems?
Answer: NFPA 25
NFPA 25 governs the inspection, testing, and maintenance of installed water-based fire protection systems including sprinklers, standpipes, and fire pumps.
A 'deluge system' differs from a standard wet pipe system in that:
Answer: All sprinkler heads are open (non-fusible) and water is released simultaneously
Deluge systems have open sprinkler heads throughout; when the deluge valve opens, water flows from all heads simultaneously, providing rapid total area coverage.
The 'fire load' of a building is best described as:
Answer: The total combustible content per unit floor area, expressed as an equivalent weight of wood
Fire load quantifies the amount of combustible material per unit area, standardized to equivalent wood weight, used to assess potential fire severity.
In fire protection, 'exposure protection' refers to:
Answer: Protecting a structure or asset from a fire burning in an adjacent structure or area
Exposure protection involves suppressing or controlling radiant heat and flame impingement on an exposed building or asset from an external fire source.
The 'Hazen-Williams formula' is used in fire protection engineering to calculate:
Answer: Friction loss in water distribution piping
The Hazen-Williams formula is the standard method for calculating friction loss (pressure drop) due to water flowing through pipes in sprinkler and standpipe systems.
A 'standpipe Class I' system is intended for use by:
Answer: Fire department personnel using 2½-inch hose connections
Class I standpipe systems provide 2½-inch hose connections for trained fire department use only, delivering high-flow water to upper floors of buildings.