LLPSD - FF1 Chapter 13 Questions and Answers | Latest Version | 2024/2025 | Rated A+
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LLPSD - FF1 Chapter 13
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LLPSD - FF1 Chapter 13
LLPSD - FF1 Chapter 13 Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
In firefighting ventilation, what is the purpose of creating a roof opening during a structure fire?
A) To allow faster entry of rescue teams
B) To help air enter the structure
C) To release smoke and hot...
LLPSD - FF1 Chapter 13 Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
In firefighting ventilation, what is the purpose of creating a roof opening during a structure fire?
A) To allow faster entry of rescue teams
B) To help air enter the structure
✔✔C) To release smoke and hot gases, reducing the risk of flashover
D) To monitor external weather conditions
Which type of ventilation involves opening or breaking windows and doors to let smoke escape?
A) Roof ventilation
✔✔B) Horizontal ventilation
C) Negative pressure ventilation
D) Positive pressure ventilation
Why is it essential to control ventilation at the right moment in a structure fire?
A) To increase fire spread
✔✔B) To control oxygen flow and limit fire growth
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,C) To increase structural stability
D) To avoid using too much equipment
What is the main benefit of using positive-pressure ventilation (PPV)?
A) Increases temperature to burn more materials
✔✔B) Forces smoke out of the structure quickly using a fan
C) Decreases water usage in firefighting
D) Increases humidity in the building
Which of these is a sign that ventilation is needed in a structure fire?
A) Loud explosions inside the building
✔✔B) Heavy smoke build-up with limited visibility
C) Windows free of smoke
D) Bright white smoke
What is the purpose of a smoke ejector in ventilation operations?
✔✔A) To pull smoke out of confined spaces
B) To introduce fresh air into the fire zone
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,C) To circulate smoke within the room
D) To cool down the building's structure
When performing vertical ventilation, what is one safety precaution firefighters must observe?
A) Work from the edges of the roof
B) Wear only a mask and gloves
✔✔C) Position yourself upwind of the opening
D) Stand directly over the hole for better control
Which of the following is an advantage of natural ventilation over mechanical ventilation?
✔✔A) Does not require power sources or equipment
B) Requires advanced training to perform
C) Is faster than any other ventilation method
D) Prevents backdrafts entirely
What factor can make vertical ventilation challenging on a multi-story building?
A) Lack of hose lines
✔✔B) Roof access and stability
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, C) Limited crew members
D) Insufficient lighting
In fire ventilation, what is a "trench cut" used for?
✔✔A) To prevent the spread of fire in large structures by creating a firebreak
B) To enter a building quickly
C) To remove water from the building
D) To close off all possible oxygen sources
Why is ventilation important in a rescue operation?
✔✔A) To clear smoke and improve visibility for locating victims
B) To allow water to enter the structure
C) To reduce fire damage to the building
D) To help firefighters rest
During a fire in a high-rise building, where is horizontal ventilation typically applied?
A) On the ground level only
✔✔B) At windows or openings on each affected floor
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