LLPSD FF1 Chapter 16 Questions and
Answers | Latest Version | 2024/2025 |
100% Pass
What is a potential hazard of breaking a window during horizontal ventilation?
A) Decreases oxygen flow
✔✔B) Can cause sudden fire growth if air rushes in
C) Causes structural collapse
D) Reduces the amount of smoke
When using a hydraulic ventilation method, where should the nozzle be positioned?
A) At the ceiling
B) Directly outside the window
✔✔C) Just inside the window, at a narrow angle
D) At the door to create a barrier
In a smoke-filled structure, what is the primary benefit of using a thermal imaging camera?
✔✔A) Locating victims and heat sources
B) Measuring the room's temperature
1
,C) Preventing heat loss
D) Controlling airflow
When performing vertical ventilation on a roof, why is it important to sound the roof with a tool?
✔✔A) To check for weak areas and structural integrity
B) To signal other crew members
C) To create airflow
D) To identify water flow areas
How can firefighters minimize the risk of backdraft when ventilating?
A) Break multiple windows at once
B) Use only roof openings
✔✔C) Ventilate carefully by creating an exhaust opening first
D) Increase fan speed immediately
Why is it recommended to place a fan at the entry point for positive-pressure ventilation?
✔✔A) To pressurize the building and force smoke out
B) To allow firefighters to cool off
2
,C) To direct airflow away from the fire
D) To contain fire to a single room
What is one characteristic of a flashover?
A) Sudden increase in temperature only at the ceiling
B) Cold smoke build-up
✔✔C) Rapid ignition of all combustible materials in the room
D) Only affects the entry point
Which scenario is ideal for natural ventilation?
A) A building with no windows
✔✔B) A structure with accessible windows or doors
C) A basement with no exhaust
D) During heavy rainfall
When preparing for roof ventilation, why is a "louver cut" commonly used?
A) It is faster to cut than other methods
B) Creates minimal debris
3
, ✔✔C) Allows sections of roof to be folded back for controlled ventilation
D) Creates an airtight seal
What is the primary purpose of using exhaust fans in confined spaces?
A) To provide air for fire growth
✔✔B) To expel toxic gases and improve air quality
C) To create heat for drying
D) To prevent roof collapse
Why should windows on the windward side remain closed during horizontal ventilation?
A) To prevent smoke from entering adjacent buildings
✔✔B) To prevent wind from pushing smoke deeper into the structure
C) To keep oxygen levels constant
D) To keep the structure airtight
What is the main benefit of using a smoke curtain at a doorway?
✔✔A) It helps contain smoke to one area while allowing access
B) It prevents fire spread to floors above
4
Answers | Latest Version | 2024/2025 |
100% Pass
What is a potential hazard of breaking a window during horizontal ventilation?
A) Decreases oxygen flow
✔✔B) Can cause sudden fire growth if air rushes in
C) Causes structural collapse
D) Reduces the amount of smoke
When using a hydraulic ventilation method, where should the nozzle be positioned?
A) At the ceiling
B) Directly outside the window
✔✔C) Just inside the window, at a narrow angle
D) At the door to create a barrier
In a smoke-filled structure, what is the primary benefit of using a thermal imaging camera?
✔✔A) Locating victims and heat sources
B) Measuring the room's temperature
1
,C) Preventing heat loss
D) Controlling airflow
When performing vertical ventilation on a roof, why is it important to sound the roof with a tool?
✔✔A) To check for weak areas and structural integrity
B) To signal other crew members
C) To create airflow
D) To identify water flow areas
How can firefighters minimize the risk of backdraft when ventilating?
A) Break multiple windows at once
B) Use only roof openings
✔✔C) Ventilate carefully by creating an exhaust opening first
D) Increase fan speed immediately
Why is it recommended to place a fan at the entry point for positive-pressure ventilation?
✔✔A) To pressurize the building and force smoke out
B) To allow firefighters to cool off
2
,C) To direct airflow away from the fire
D) To contain fire to a single room
What is one characteristic of a flashover?
A) Sudden increase in temperature only at the ceiling
B) Cold smoke build-up
✔✔C) Rapid ignition of all combustible materials in the room
D) Only affects the entry point
Which scenario is ideal for natural ventilation?
A) A building with no windows
✔✔B) A structure with accessible windows or doors
C) A basement with no exhaust
D) During heavy rainfall
When preparing for roof ventilation, why is a "louver cut" commonly used?
A) It is faster to cut than other methods
B) Creates minimal debris
3
, ✔✔C) Allows sections of roof to be folded back for controlled ventilation
D) Creates an airtight seal
What is the primary purpose of using exhaust fans in confined spaces?
A) To provide air for fire growth
✔✔B) To expel toxic gases and improve air quality
C) To create heat for drying
D) To prevent roof collapse
Why should windows on the windward side remain closed during horizontal ventilation?
A) To prevent smoke from entering adjacent buildings
✔✔B) To prevent wind from pushing smoke deeper into the structure
C) To keep oxygen levels constant
D) To keep the structure airtight
What is the main benefit of using a smoke curtain at a doorway?
✔✔A) It helps contain smoke to one area while allowing access
B) It prevents fire spread to floors above
4
