Chapter 13 Ventilation Test Questions and Answers Graded A+
What does a neutral plane at a vent opening
indicate?
A) Which statement about the operation of HVAC
Equal pressure inside and outside the structure equipment during fire ventilation operations is
B) correct?
Stack effect A)
C) HVAC systems are designed to automatically shut
Fuel-limited stage fire down when smoke is detected.
D) B)
Pre-flashover conditions - ANSWER -A) Some HVAC systems can be used for clearing
Equal pressure inside and outside the structure smoke.
C)
It is important to maintain power to the HVAC system
Which construction technique builds one floor at a at all times.
time with a firestop between each floor? D)
A) HVAC systems should be shut down as soon as
Flitch plate possible. - ANSWER -B)
B) Some HVAC systems can be used for clearing
Platform-frame smoke.
C)
Balloon
D) Which form of ventilation is best for potential
Ordinary - ANSWER -B) backdraft conditions?
Platform-frame A)
Positive-pressure
B)
Recirculation is associated with which form of Horizontal
ventilation? C)
A) Negative-pressure
Positive-pressure D)
B) Vertical - ANSWER -D)
Vertical Vertical
C)
Horizontal
D) Which occurs when the introduction of oxygen into an
Negative-pressure - ANSWER -D) oxygen-starved mixture of superheated gases results
Negative-pressure in explosive ignition?
A)
Mushrooming
A freestanding wall that extends above the roofline is B)
a __________ wall. Rollover
A) C)
parapet Flashover
B) D)
pony Backdraft - ANSWER -D)
C) Backdraft
curtain
D)
sleeper - ANSWER -A) Which action is particularly dangerous when dealing
parapet with a ventilation-limited fire?
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, Chapter 13 Ventilation Test Questions and Answers Graded A+
A) D)
Vertical ventilation Louvered - ANSWER -A)
B) Triangular
Creating exterior openings
C)
Transitional attack Which statement about hydraulic ventilation is
D) correct?
Limiting the clean air supply - ANSWER -B) A)
Creating exterior openings A medium-diameter line is required.
B)
A straight or solid stream is used.
According to tests by conducted by UL, in order for C)
ventilation to improve interior conditions, what must The ventilation crew must remain in the path of the
occur? exhausting smoke.
A) D)
The vent must be created as soon as possible. It is not effective for large volumes of smoke and
B) heat. - ANSWER -C)
The vent must be in the same compartment as the The ventilation crew must remain in the path of the
fire. exhausting smoke.
C)
Ventilation must be coordinated with the application
of water as close to the fire as possible. What is the term for the weather-resistant surface of
D) a roof?
Ventilation must not significantly alter the flow path. - A)
ANSWER -C) Decking
Ventilation must be coordinated with the application B)
of water as close to the fire as possible. Covering
C)
Skin
Which term means the spread of fire from one floor D)
to another via exterior windows? Tar paper - ANSWER -B)
A) Covering
Laddering
B)
Vertical fire extension When making louver cuts, what is used as a fulcrum
C) to make the louvered openings?
Stack effect A)
D) Ridge pole
Crowning - ANSWER -B) B)
Vertical fire extension Decking
C)
Roof support
Which is the preferred method to cut a ventilation D)
hole in a metal roof? Purlin - ANSWER -C)
A) Roof support
Triangular
B)
Peak What is the greatest risk to fire fighters performing
C) vertical ventilation?
Trench A)
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What does a neutral plane at a vent opening
indicate?
A) Which statement about the operation of HVAC
Equal pressure inside and outside the structure equipment during fire ventilation operations is
B) correct?
Stack effect A)
C) HVAC systems are designed to automatically shut
Fuel-limited stage fire down when smoke is detected.
D) B)
Pre-flashover conditions - ANSWER -A) Some HVAC systems can be used for clearing
Equal pressure inside and outside the structure smoke.
C)
It is important to maintain power to the HVAC system
Which construction technique builds one floor at a at all times.
time with a firestop between each floor? D)
A) HVAC systems should be shut down as soon as
Flitch plate possible. - ANSWER -B)
B) Some HVAC systems can be used for clearing
Platform-frame smoke.
C)
Balloon
D) Which form of ventilation is best for potential
Ordinary - ANSWER -B) backdraft conditions?
Platform-frame A)
Positive-pressure
B)
Recirculation is associated with which form of Horizontal
ventilation? C)
A) Negative-pressure
Positive-pressure D)
B) Vertical - ANSWER -D)
Vertical Vertical
C)
Horizontal
D) Which occurs when the introduction of oxygen into an
Negative-pressure - ANSWER -D) oxygen-starved mixture of superheated gases results
Negative-pressure in explosive ignition?
A)
Mushrooming
A freestanding wall that extends above the roofline is B)
a __________ wall. Rollover
A) C)
parapet Flashover
B) D)
pony Backdraft - ANSWER -D)
C) Backdraft
curtain
D)
sleeper - ANSWER -A) Which action is particularly dangerous when dealing
parapet with a ventilation-limited fire?
1/9
, Chapter 13 Ventilation Test Questions and Answers Graded A+
A) D)
Vertical ventilation Louvered - ANSWER -A)
B) Triangular
Creating exterior openings
C)
Transitional attack Which statement about hydraulic ventilation is
D) correct?
Limiting the clean air supply - ANSWER -B) A)
Creating exterior openings A medium-diameter line is required.
B)
A straight or solid stream is used.
According to tests by conducted by UL, in order for C)
ventilation to improve interior conditions, what must The ventilation crew must remain in the path of the
occur? exhausting smoke.
A) D)
The vent must be created as soon as possible. It is not effective for large volumes of smoke and
B) heat. - ANSWER -C)
The vent must be in the same compartment as the The ventilation crew must remain in the path of the
fire. exhausting smoke.
C)
Ventilation must be coordinated with the application
of water as close to the fire as possible. What is the term for the weather-resistant surface of
D) a roof?
Ventilation must not significantly alter the flow path. - A)
ANSWER -C) Decking
Ventilation must be coordinated with the application B)
of water as close to the fire as possible. Covering
C)
Skin
Which term means the spread of fire from one floor D)
to another via exterior windows? Tar paper - ANSWER -B)
A) Covering
Laddering
B)
Vertical fire extension When making louver cuts, what is used as a fulcrum
C) to make the louvered openings?
Stack effect A)
D) Ridge pole
Crowning - ANSWER -B) B)
Vertical fire extension Decking
C)
Roof support
Which is the preferred method to cut a ventilation D)
hole in a metal roof? Purlin - ANSWER -C)
A) Roof support
Triangular
B)
Peak What is the greatest risk to fire fighters performing
C) vertical ventilation?
Trench A)
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