JIBC Fire Prevention and Safety 4 — Questions and Answers
Question 1: A fire inspector discovers a restaurant has blocked its rear exit with stored equipment. Under the BC Fire Code, what is the MOST appropriate immediate action?
- Issue a written warning and schedule a re-inspection in 30 days
- Order immediate removal of the obstruction and verify compliance before leaving (Correct answer)
- Contact the restaurant owner's lawyer before taking action
- Post a notice on the door and return the following week
Correct answer: Order immediate removal of the obstruction and verify compliance before leaving
Blocked exits are an immediate life-safety hazard requiring on-the-spot correction before the inspector leaves the premises.
Question 2: Which class of fire involves energized electrical equipment?
- Class A
- Class B
- Class C (Correct answer)
- Class D
Correct answer: Class C
Class C fires involve energized electrical equipment; once de-energized, the fuel source may reclassify as Class A or B.
Question 3: What is the primary purpose of a pre-incident plan (pre-fire plan) for a commercial building?
- To document the building owner's insurance coverage
- To provide firefighters with critical information to safely and effectively combat a fire (Correct answer)
- To satisfy municipal tax requirements
- To record the history of past fire incidents at the site
Correct answer: To provide firefighters with critical information to safely and effectively combat a fire
Pre-incident plans give responding crews vital structural, occupancy, hazard, and access information before they enter a building.
Question 4: Under NFPA 10, portable fire extinguishers in a light-hazard occupancy must be placed so the maximum travel distance to any extinguisher does not exceed:
- 50 feet (15 m)
- 75 feet (23 m) (Correct answer)
- 100 feet (30 m)
- 125 feet (38 m)
Correct answer: 75 feet (23 m)
NFPA 10 limits travel distance to a portable extinguisher in light-hazard occupancies to 75 feet (approximately 23 m).
Question 5: A sprinkler head that fuses and activates at 68°C (155°F) is classified as which temperature rating?
- Intermediate
- High
- Ordinary (Standard) (Correct answer)
- Extra High
Correct answer: Ordinary (Standard)
Ordinary (Standard) rated sprinkler heads have activation temperatures between 57°C and 77°C (135°F–170°F).
Question 6: During a fire safety inspection of a high-rise, an inspector finds that the fire alarm annunciator panel shows a supervisory signal for a sprinkler control valve. This MOST likely means:
- A sprinkler head has activated and discharged water
- A sprinkler control valve is in a partially or fully closed position (Correct answer)
- The alarm panel battery is low
- A smoke detector has been disconnected
Correct answer: A sprinkler control valve is in a partially or fully closed position
A supervisory signal from a sprinkler valve position switch indicates the valve is not in its normal (fully open) position, compromising sprinkler system readiness.
Question 7: What does the term 'flash point' refer to in fire prevention?
- The temperature at which a material ignites spontaneously without an ignition source
- The lowest temperature at which a liquid produces enough vapor to ignite momentarily when exposed to a flame (Correct answer)
- The maximum temperature a fire suppression system can withstand
- The point at which a fire transitions from smoldering to open flame
Correct answer: The lowest temperature at which a liquid produces enough vapor to ignite momentarily when exposed to a flame
Flash point is the minimum temperature at which a liquid releases sufficient vapors to form an ignitable mixture near its surface when briefly exposed to an ignition source.
JIBC Fire Prevention and Safety 4
A fire inspector discovers a restaurant has blocked its rear exit with stored equipment.
Under the BC Fire Code, what is the MOST appropriate immediate action?