Chapter 13 Ventilation Test Questions with Verified Answers
1. What does a neutral plane at a vent opening A) Positive-pressure
indicate? B) Horizontal
A) Equal pressure inside and outside the structure C) Negative-pressure
B) Stack effect D) Vertical - ANSWER -D) Vertical
C) Fuel-limited stage fire
D) Pre-flashover conditions - ANSWER -A)
Equal pressure inside and outside the structure 7. Which occurs when the introduction of oxygen into
an oxygen-starved mixture of superheated gases
results in explosive ignition?
2. Which construction technique builds one floor at a A) Mushrooming
time with a firestop between each floor? B) Rollover
A) Flitch plate C) Flashover
B) Platform-frame D) Backdraft - ANSWER -D) Backdraft
C) Balloon
D) Ordinary - ANSWER -B) Platform-frame
8. Which action is particularly dangerous when
dealing with a ventilation-limited fire?
3. Recirculation is associated with which form of A) Vertical ventilation
ventilation? B) Creating exterior openings
A) Positive-pressure C) Transitional attack
B) Vertical D) Limiting the clean air supply - ANSWER -B)
C) Horizontal Creating exterior openings
D) Negative-pressure - ANSWER -D) Negative-
pressure
9. According to tests by conducted by UL, in order for
ventilation to improve interior conditions, what must
4. A freestanding wall that extends above the roofline occur?
is a __________ wall. A) The vent must be created as soon as possible.
A) parapet B) The vent must be in the same compartment as the
B) pony fire.
C) curtain C) Ventilation must be coordinated with the
D) sleeper - ANSWER -A) parapet application of water as close to the fire as possible.
D) Ventilation must not significantly alter the flow
path. - ANSWER -C) Ventilation must be
5. Which statement about the operation of HVAC coordinated with the application of water as close to
equipment during fire ventilation operations is the fire as possible.
correct?
A) HVAC systems are designed to automatically shut
down when smoke is detected. 10. Which term means the spread of fire from one
B) Some HVAC systems can be used for clearing floor to another via exterior windows?
smoke. A) Laddering
C) It is important to maintain power to the HVAC B) Vertical fire extension
system at all times. C) Stack effect
D) HVAC systems should be shut down as soon as D) Crowning - ANSWER -B) Vertical fire
possible. - ANSWER -B) Some HVAC systems extension
can be used for clearing smoke.
11. Which is the preferred method to cut a ventilation
6. Which form of ventilation is best for potential hole in a metal roof?
backdraft conditions? A) Triangular
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, Chapter 13 Ventilation Test Questions with Verified Answers
B) Peak
C) Trench 17. Which hazard is of particular concern in a
D) Louvered - ANSWER -A) Triangular basement fire?
A) Failure of the floor system above the fire
B) The ineffectualness of exterior attack
12. Which statement about hydraulic ventilation is C) Exterior attack pushing fire through void spaces
correct? D) Introduction of fresh air into a ventilation-controlled
A) A medium-diameter line is required. fire - ANSWER -A) Failure of the floor system
B) A straight or solid stream is used. above the fire
C) The ventilation crew must remain in the path of
the exhausting smoke.
D) It is not effective for large volumes of smoke and 18. Which is the preferred location to ventilate a
heat. - ANSWER -C) The ventilation crew must basement?
remain in the path of the exhausting smoke. A) The largest existing opening
B) Exterior doors and windows
C) The interior stairwell
13. What is the term for the weather-resistant surface D) Any preexisting opening - ANSWER -B)
of a roof? Exterior doors and windows
A) Decking
B) Covering
C) Skin 19. When faced with signs of impending flashover,
D) Tar paper - ANSWER -B) Covering which action should be taken first?
A) Vent vertically
B) Perform direct attack
14. When making louver cuts, what is used as a C) Vent horizontally
fulcrum to make the louvered openings? D) Initiate transitional attack - ANSWER -D)
A) Ridge pole Initiate transitional attack
B) Decking
C) Roof support
D) Purlin - ANSWER -C) Roof support 20. What is a characteristic of bowstring trusses?
A) Lack of a cockloft or attic space
B) Commonly used in lightweight residential
15. What is the greatest risk to fire fighters construction
performing vertical ventilation? C) Commonly used in fire-resistive construction
A) Roof collapse D) Prone to sudden collapse in fire conditions -
B) Exposure to products of combustion ANSWER -D) Prone to sudden collapse in fire
C) Sudden increase in fire intensity conditions
D) Falling off the roof or ladder - ANSWER -A)
Roof collapse
21. What are gusset plates?
A) Long strips of metal that are sandwiched by wood
16. Which item is necessary in order for the peak beam members
ventilation cut to be used? B) Connecting plates made of a thin sheet of steel
A) Access to both sides of the peak C) The vertical members of a truss assembly
B) Existing roof openings D) Structural sheathing designed to resist shear
C) Wood shake/shingle covering forces - ANSWER -B) Connecting plates made
D) Plywood sheeting - ANSWER -D) Plywood of a thin sheet of steel
sheeting
22. Which action should be avoided when performing
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1. What does a neutral plane at a vent opening A) Positive-pressure
indicate? B) Horizontal
A) Equal pressure inside and outside the structure C) Negative-pressure
B) Stack effect D) Vertical - ANSWER -D) Vertical
C) Fuel-limited stage fire
D) Pre-flashover conditions - ANSWER -A)
Equal pressure inside and outside the structure 7. Which occurs when the introduction of oxygen into
an oxygen-starved mixture of superheated gases
results in explosive ignition?
2. Which construction technique builds one floor at a A) Mushrooming
time with a firestop between each floor? B) Rollover
A) Flitch plate C) Flashover
B) Platform-frame D) Backdraft - ANSWER -D) Backdraft
C) Balloon
D) Ordinary - ANSWER -B) Platform-frame
8. Which action is particularly dangerous when
dealing with a ventilation-limited fire?
3. Recirculation is associated with which form of A) Vertical ventilation
ventilation? B) Creating exterior openings
A) Positive-pressure C) Transitional attack
B) Vertical D) Limiting the clean air supply - ANSWER -B)
C) Horizontal Creating exterior openings
D) Negative-pressure - ANSWER -D) Negative-
pressure
9. According to tests by conducted by UL, in order for
ventilation to improve interior conditions, what must
4. A freestanding wall that extends above the roofline occur?
is a __________ wall. A) The vent must be created as soon as possible.
A) parapet B) The vent must be in the same compartment as the
B) pony fire.
C) curtain C) Ventilation must be coordinated with the
D) sleeper - ANSWER -A) parapet application of water as close to the fire as possible.
D) Ventilation must not significantly alter the flow
path. - ANSWER -C) Ventilation must be
5. Which statement about the operation of HVAC coordinated with the application of water as close to
equipment during fire ventilation operations is the fire as possible.
correct?
A) HVAC systems are designed to automatically shut
down when smoke is detected. 10. Which term means the spread of fire from one
B) Some HVAC systems can be used for clearing floor to another via exterior windows?
smoke. A) Laddering
C) It is important to maintain power to the HVAC B) Vertical fire extension
system at all times. C) Stack effect
D) HVAC systems should be shut down as soon as D) Crowning - ANSWER -B) Vertical fire
possible. - ANSWER -B) Some HVAC systems extension
can be used for clearing smoke.
11. Which is the preferred method to cut a ventilation
6. Which form of ventilation is best for potential hole in a metal roof?
backdraft conditions? A) Triangular
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, Chapter 13 Ventilation Test Questions with Verified Answers
B) Peak
C) Trench 17. Which hazard is of particular concern in a
D) Louvered - ANSWER -A) Triangular basement fire?
A) Failure of the floor system above the fire
B) The ineffectualness of exterior attack
12. Which statement about hydraulic ventilation is C) Exterior attack pushing fire through void spaces
correct? D) Introduction of fresh air into a ventilation-controlled
A) A medium-diameter line is required. fire - ANSWER -A) Failure of the floor system
B) A straight or solid stream is used. above the fire
C) The ventilation crew must remain in the path of
the exhausting smoke.
D) It is not effective for large volumes of smoke and 18. Which is the preferred location to ventilate a
heat. - ANSWER -C) The ventilation crew must basement?
remain in the path of the exhausting smoke. A) The largest existing opening
B) Exterior doors and windows
C) The interior stairwell
13. What is the term for the weather-resistant surface D) Any preexisting opening - ANSWER -B)
of a roof? Exterior doors and windows
A) Decking
B) Covering
C) Skin 19. When faced with signs of impending flashover,
D) Tar paper - ANSWER -B) Covering which action should be taken first?
A) Vent vertically
B) Perform direct attack
14. When making louver cuts, what is used as a C) Vent horizontally
fulcrum to make the louvered openings? D) Initiate transitional attack - ANSWER -D)
A) Ridge pole Initiate transitional attack
B) Decking
C) Roof support
D) Purlin - ANSWER -C) Roof support 20. What is a characteristic of bowstring trusses?
A) Lack of a cockloft or attic space
B) Commonly used in lightweight residential
15. What is the greatest risk to fire fighters construction
performing vertical ventilation? C) Commonly used in fire-resistive construction
A) Roof collapse D) Prone to sudden collapse in fire conditions -
B) Exposure to products of combustion ANSWER -D) Prone to sudden collapse in fire
C) Sudden increase in fire intensity conditions
D) Falling off the roof or ladder - ANSWER -A)
Roof collapse
21. What are gusset plates?
A) Long strips of metal that are sandwiched by wood
16. Which item is necessary in order for the peak beam members
ventilation cut to be used? B) Connecting plates made of a thin sheet of steel
A) Access to both sides of the peak C) The vertical members of a truss assembly
B) Existing roof openings D) Structural sheathing designed to resist shear
C) Wood shake/shingle covering forces - ANSWER -B) Connecting plates made
D) Plywood sheeting - ANSWER -D) Plywood of a thin sheet of steel
sheeting
22. Which action should be avoided when performing
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