CCI Fire Protection & Life Safety 3 — Questions and Answers
Question 1: A fire-rated wall assembly must be tested in accordance with which standard?
- ASTM E84
- ASTM E119 (Correct answer)
- ASTM E814
- ASTM E1966
Correct answer: ASTM E119
ASTM E119 (Standard Test Methods for Fire Tests of Building Construction and Materials) is the standard used to determine fire-resistance ratings of wall assemblies.
Question 2: What is the maximum travel distance to an exit in a non-sprinklered business occupancy under IBC?
- 150 feet
- 200 feet (Correct answer)
- 250 feet
- 300 feet
Correct answer: 200 feet
IBC allows a maximum travel distance of 200 feet to an exit in non-sprinklered business occupancies.
Question 3: When inspecting a dry pipe sprinkler system, the inspector should verify that the air pressure in the system is maintained at what relationship to the water supply pressure?
- Equal to water supply pressure
- Twice the water supply pressure
- At least 20 psi above the water supply pressure
- At a ratio ensuring the differential prevents premature opening (Correct answer)
Correct answer: At a ratio ensuring the differential prevents premature opening
Dry pipe valves use a differential ratio (typically 6:1 air-to-water pressure) so the air pressure needed to hold the clapper closed is much lower than the water supply pressure.
Question 4: Under IBC, a common path of egress travel in a sprinklered building with an occupant load of 30 or fewer may not exceed:
- 75 feet
- 100 feet (Correct answer)
- 125 feet
- 150 feet
Correct answer: 100 feet
IBC permits a common path of egress travel up to 100 feet in sprinklered buildings where the occupant load does not exceed 30.
Question 5: Which type of fire extinguisher is appropriate for use on a Class K (cooking oil and grease) fire?
- CO2 extinguisher
- Dry chemical (ABC) extinguisher
- Wet chemical extinguisher (Correct answer)
- Halon extinguisher
Correct answer: Wet chemical extinguisher
Wet chemical extinguishers are specifically designed for Class K fires involving cooking oils and greases in commercial cooking equipment.
Question 6: What is the primary purpose of a fire damper in an HVAC duct penetrating a fire-rated wall?
- Reduce smoke spread between occupancies
- Prevent flame and hot gases from passing through the duct opening (Correct answer)
- Maintain air pressure differentials during a fire
- Allow the HVAC system to continue operating during a fire
Correct answer: Prevent flame and hot gases from passing through the duct opening
Fire dampers close automatically upon heat activation to prevent fire (flames and hot gases) from traveling through ductwork penetrations in fire-rated assemblies.
Question 7: The International Fire Code requires portable fire extinguishers to be inspected at minimum how often?
- Every 30 days
- Annually
- Every 6 months
- Monthly (Correct answer)
Correct answer: Monthly
The IFC requires portable fire extinguishers to receive a visual inspection at least monthly to verify they are in their designated location, unobstructed, and show no obvious defects.
CCI Fire Protection & Life Safety 3
A fire-rated wall assembly must be tested in accordance with which standard?