CFPS Basic 2 — Questions and Answers
Question 1: What is the primary purpose of a fire protection system's supervisory signal?
- To alert occupants to evacuate
- To indicate a system impairment that needs attention (Correct answer)
- To activate suppression systems automatically
- To notify the local fire department directly
Correct answer: To indicate a system impairment that needs attention
A supervisory signal indicates a condition that could impair the system's effectiveness, such as a closed valve, requiring prompt attention.
Question 2: Which NFPA standard governs the installation of sprinkler systems in occupancies other than one- and two-family dwellings?
- NFPA 13D
- NFPA 13R
- NFPA 13 (Correct answer)
- NFPA 25
Correct answer: NFPA 13
NFPA 13 is the standard for the installation of sprinkler systems in commercial and industrial occupancies.
Question 3: The heat release rate (HRR) of a fire is measured in which unit?
- BTU
- kW (kilowatts) (Correct answer)
- °F per minute
- psi
Correct answer: kW (kilowatts)
Heat release rate is measured in kilowatts (kW) or megawatts (MW), representing the rate at which energy is released by a fire.
Question 4: A fire requiring a Class K extinguisher involves which type of fuel?
- Electrical equipment
- Cooking oils and fats (Correct answer)
- Ordinary combustibles
- Flammable metals
Correct answer: Cooking oils and fats
Class K fires involve cooking oils and animal or vegetable fats, typically in commercial cooking equipment.
Question 5: What does the term 'ordinary hazard Group 2' describe when classifying occupancies for sprinkler design?
- High-rise residential buildings
- Occupancies with moderate combustible loading and moderate rates of heat release (Correct answer)
- Light storage facilities with minimal fuel load
- High-piled storage exceeding 12 feet
Correct answer: Occupancies with moderate combustible loading and moderate rates of heat release
Ordinary Hazard Group 2 occupancies have moderate to above-moderate quantities of combustibles with moderate heat release rates, per NFPA 13.
Question 6: Which type of fire detector responds to both flaming and smoldering fires most effectively?
- Fixed-temperature heat detector
- Rate-of-rise heat detector
- Combination ionization/photoelectric smoke detector (Correct answer)
- Ultraviolet flame detector
Correct answer: Combination ionization/photoelectric smoke detector
A combination ionization/photoelectric detector provides broad-spectrum detection, with ionization sensing fast-flaming fires and photoelectric sensing slow-smoldering fires.
Question 7: In fire dynamics, 'flashover' is best defined as:
- The ignition of the first item in a compartment
- The near-simultaneous ignition of all exposed combustible surfaces in a compartment (Correct answer)
- The collapse of a structural element due to heat
- The failure of a sprinkler head to activate
Correct answer: The near-simultaneous ignition of all exposed combustible surfaces in a compartment
Flashover is the rapid transition from a growing fire to a fully developed fire when all combustible surfaces in a compartment ignite almost simultaneously.
CFPS Basic 2
What is the primary purpose of a fire protection system's supervisory signal?