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TCFP INCIDENT SAFETY OFFICER EXAM
QUESTIONS AND CORRECT DETAILED
ANSWERS 2025 (VERIFIED ANSWERS)
- What is the primary responsibility of the Incident Safety Officer (ISO) at an incident scene? A. Supervise suppression crews B. Assist with triage C. Monitor and assess safety hazards D. Coordinate media relations
The ISO's main job is to identify and mitigate hazards to protect
personnel.
- During a structural fire, the ISO notices a partial roof collapse risk. What action should be taken? A. Report it after the incident B. Wait for the incident commander to notice C. Notify the incident commander immediately D. Continue monitoring silently
The ISO must immediately communicate life-threatening hazards
to the IC.
- Which document guides the ISO's responsibilities during an incident? A. Fire Department Budget B. NFPA 1521 C. OSHA 1910 D. NFPA 1001
NFPA 1521 outlines the roles and duties of the ISO.
- The ISO should be part of which section in the ICS structure? A. Planning B. Logistics C. Command D. Finance
The ISO is part of the Command Staff under ICS.
- What should the ISO do if a firefighter refuses to wear SCBA in a hazardous atmosphere? A. Ignore it B. Immediately stop the operation and correct the behavior C. Wait to report it later D. Tell their supervisor
Immediate intervention is required to prevent injury or death.
- Which hazard is most associated with overhaul operations? A. Airborne toxins B. Flooding C. Radiation
10.What is the most effective way to prevent firefighter injuries? A. Buy better equipment B. Promote a culture of safety and accountability C. Increase staffing D. Rely on experience
A strong safety culture minimizes unsafe behavior and risk.
11.A flashover is imminent. What should the ISO do? A. Evacuate civilians B. Notify dispatch C. Alert the IC and recommend immediate withdrawal D. Do nothing
Flashover is deadly; firefighters must be removed from danger
quickly.
12.What does a PAR stand for? A. Personnel Accountability Report B. Personal Action Report C. Performance Assessment Rating D. Post Action Review
PARs are used to confirm the safety and location of crews.
13.What is a critical role of the ISO during rehab operations? A. Manage patient transport B. Monitor firefighter health and hydration C. Provide food
D. Direct traffic
ISO ensures physical well-being of personnel during recovery.
14.The ISO notes poor radio communication. What is the best course of action? A. Ignore it B. Notify the IC and request a solution C. Change the radio frequency D. Call for backup
Communication is vital for coordination and safety.
15.Thermal imaging cameras help the ISO by: A. Estimating property loss B. Identifying hidden hot spots C. Measuring toxic gases D. Locating equipment
These cameras locate heat sources not visible to the eye.
16.Which of the following is considered an IDLH environment? A. Low-light hallway B. Smoke-filled basement with active fire C. Wet stairwell D. Parking lot
IDLH = Immediate Danger to Life and Health, common in fire
environments.
21.What does "risk a lot to save a lot" imply? A. Accept higher risks only when lives are at stake B. Always take maximum risk C. Avoid all risks D. Risk equipment only
This rule helps balance risk versus reward.
22.The ISO notices fatigue in multiple crews. What is the correct response? A. Ignore it B. Rotate crews and enforce rehab C. Assign more tasks D. End the incident
Fatigue leads to mistakes and injuries; rest and rehab are critical.
23.Who ensures compliance with NFPA and OSHA standards during incidents? A. Fire Chief B. Safety Committee C. Incident Safety Officer D. Training Officer
The ISO ensures operational activities follow safety standards.
24.When using a ladder, what is the 1:4 rule? A. For every 4 feet of height, place the base 1 foot away B. Ladder must extend 4 feet above the roofline C. Place 4 feet of ladder in contact
D. Use a 4-foot ladder
The 1:4 ratio stabilizes ladder positioning.
25.A "Mayday" call indicates: A. Fire rekindle B. Collapse C. Firefighter in distress D. General alert
“Mayday” is used when a firefighter is lost, trapped, or injured.
26.Who is responsible for establishing the rehab area? A. Operations Section B. ISO in coordination with logistics C. Planning Section D. PIO
The ISO identifies the need for rehab and works with logistics to
implement it.
27.One sign of heat exhaustion is: A. Shivering B. Dizziness and heavy sweating C. Chest pain D. Frostbite
Heat exhaustion causes dizziness, headache, nausea, and
sweating.
B. Budgeting equipment use C. Assigning personnel D. Tracking time
Risk management is a process to minimize harm by evaluating
hazards.
32.An example of an unsafe act is: A. Removing SCBA before overhaul is complete B. Overloading an engine C. Responding slowly D. Backing up a truck
Removing protective gear prematurely increases exposure to
toxins.
33.The ISO is best suited to advise on: A. Fire attack strategy B. Fireground safety hazards C. Equipment repairs D. Mutual aid selection
The ISO focuses on recognizing and controlling risks, not tactics.
34.A trench more than how many feet deep requires shoring? A. 2 B. 5 C. 8 D. 10
OSHA requires shoring for trenches deeper than 5 feet.
35.The hot zone is defined as: A. Area with immediate danger or exposure risk B. Equipment staging C. Support zone D. Media area
The hot zone is the most dangerous area requiring PPE and
control.
36.A post-incident report helps to: A. Grade firefighters B. Analyze incident performance and identify improvements C. Plan budget D. Secure funding
Post-incident reviews improve training and safety.
37.The ISO sees a firefighter working alone in a dangerous area. Action? A. Order them to withdraw and report to their supervisor B. Let them finish C. Call dispatch D. Log it for later
Working alone in IDLH is dangerous and violates safety protocols.
38.NFPA standard for firefighter health and wellness? A. NFPA 1582 B. NFPA 1021 C. NFPA 921
B. Less supervision C. Clear command structure and assignments D. More radios
Structured command prevents unsanctioned actions.
43.An unventilated attic fire is likely to cause: A. Backdraft B. Collapse C. Radiation burn D. Flash flooding
Backdraft occurs when oxygen rapidly fuels hot gases.
44.An unsafe condition includes: A. Ice on apparatus steps B. Fire in a fireplace C. Low hydrant pressure D. Wet PPE
Unsafe conditions are physical hazards in the environment.
45.The term "span of control" means: A. Fire area coverage B. Number of individuals one supervisor can manage C. Fire stream width D. SCBA range
Span of control ensures effective supervision and communication.
46.Heat stroke differs from heat exhaustion because it: A. Causes shivering
B. Is less serious C. Involves lack of sweating and potential unconsciousness D. Happens in cold weather
Heat stroke is life-threatening and requires immediate care.
47.Rehab is necessary after: A. Alarm activation B. Arriving at scene C. Working in full gear for extended periods D. Sitting in staging
Rehab helps firefighters recover from physical and thermal stress.
48.The best time to identify potential safety hazards is: A. During pre-incident planning B. Post-incident C. Mid-incident D. At rehab
Planning ahead reduces on-scene surprises.
49.ISO role in live-fire training includes: A. Teaching hose control B. Driving the truck C. Monitoring compliance with safety standards D. Filling SCBA
ISO ensures training meets NFPA 1403 safety requirements.
50.Primary purpose of NIMS is: A. Standardize incident response nationwide
