F-02 Building Construction and Fire Behavior Practice Test 2 — Questions and Answers
Question 1: What role does the Fireguard play in maintaining fire door integrity?
- No role; fire doors are maintenance department's responsibility
- Ensure fire doors are not propped open, self-closers work, and no gaps exist around the door (Correct answer)
- Lock all fire doors at night
- Remove fire doors to improve evacuation speed
Correct answer: Ensure fire doors are not propped open, self-closers work, and no gaps exist around the door
The Fireguard must verify during patrols that fire doors are not propped open with wedges or items, self-closing hardware functions properly, door frames are not damaged, and no gaps exist that would allow smoke passage. Propped-open fire doors are one of the most common violations in shelters.
Question 2: What is the 'stack effect' in a building?
- The way furniture stacks during an earthquake
- The natural upward movement of warm air through vertical openings in a building, drawing smoke and fire upward (Correct answer)
- The method of stacking fire hose
- The stacking of combustible materials in storage
Correct answer: The natural upward movement of warm air through vertical openings in a building, drawing smoke and fire upward
The stack effect occurs when warm air inside a building rises through vertical openings (stairways, elevator shafts) creating a natural chimney-like airflow. During a fire, this effect rapidly pushes smoke and hot gases to upper floors, making upper floor evacuation urgent.
Question 3: What is a fire wall compared to a fire partition?
- They are the same thing
- A fire wall provides a complete barrier from foundation to roof; a fire partition divides areas within a floor (Correct answer)
- A fire wall is for exterior use; a fire partition is for interior only
- A fire wall is made of wood; a fire partition is made of steel
Correct answer: A fire wall provides a complete barrier from foundation to roof; a fire partition divides areas within a floor
A fire wall is a structural wall that extends from the foundation through the roof, creating a complete fire barrier that divides a building into separate fire areas. A fire partition divides areas on the same floor and extends from floor to ceiling but not necessarily through the roof structure.
Question 4: What is the fire behavior concept of 'backdraft'?
- A fire that starts at the back of a building
- An explosive event when oxygen is suddenly introduced to a smoldering fire in an oxygen-depleted space (Correct answer)
- The wind pattern behind a fire truck
- A fire that moves backward toward its origin
Correct answer: An explosive event when oxygen is suddenly introduced to a smoldering fire in an oxygen-depleted space
A backdraft occurs when a fire in a sealed or oxygen-depleted space has produced large amounts of heated, unburned fuel gases. When an opening is made (opening a door or window), fresh oxygen rushes in and mixes with these gases, causing a sudden, explosive ignition.
Question 5: What is the fire resistance rating of a typical fire door used between a shelter corridor and sleeping rooms?
- No rating required
- 20 minutes (Correct answer)
- 3 hours
- 10 minutes
Correct answer: 20 minutes
Doors between corridors and sleeping rooms in shelter-type occupancies typically require a 20-minute fire resistance rating. This provides enough time for occupants to evacuate through the corridor while the door prevents fire and smoke from spreading between the room and escape route.
Question 6: How does compartmentalization protect building occupants during a fire?
- By locking occupants in their rooms
- By dividing the building into fire-resistant sections that contain fire and smoke to the area of origin (Correct answer)
- By removing all combustibles from the building
- By increasing ventilation throughout the building
Correct answer: By dividing the building into fire-resistant sections that contain fire and smoke to the area of origin
Compartmentalization divides a building into fire-resistant sections using fire walls, fire doors, and rated floor/ceiling assemblies. This contains fire and smoke to the area of origin, giving occupants in other areas more time to evacuate and protecting escape routes.
F-02 Building Construction and Fire Behavior Practice Test 2
What role does the Fireguard play in maintaining fire door integrity?