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2030 World Champs > 7-Ops-9.2 Standpipe systems > Flashcards

7-Ops-9.2 Standpipe systems Flashcards

1
Q

According to the BFES operations Manual, What is the minimum rated flow required by NFPA 14 for a Class 1 standpipe system pre-1993?
a. 380 L/min
b. 1892 L/min
c. 1225 kPa
d. 30 litres per second

A

B
Class 1 System Characteristics:
* Required by NFPA 14 to deliver a minimum rated flow of 1892 L/min at the two uppermost or hydraulically most remote outlets at 450 kPa residual pressure pre-1993 and 700 kPa residual pressure post-1993

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2
Q

According to the BFES operations Manual, In Ontario, what is the minimum pressure requirement for Class 1 standpipe systems as per the Ontario Building Code (OBC)?
a. 450 kPa
b. 700 kPa
c. 1225 kPa
d. 1800 L/min

A

A
Buildings in Ontario do not have to adhere to NFPA and may only supply the minimum pressure requirement of 450 kPa and 30 litres per second (1800 L/min) as per the Ontario Building Code (OBC).

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3
Q

According to the BFES operations Manual, Where is a Class 1 standpipe system primarily located?
a. Hallways
b. Stairwells
c. Lobbies
d. All of the Above

A

D
* Primarily located in stairwells. (May also be found in hallways, lobbies, etc.)

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4
Q

According to the BFES operations Manual, What size hose connection is found at a Class 1 standpipe?
a. 38mm
b. 50mm
c. 65mm
d. 75mm

A

C
* 65mm hose connection at standpipe, not equipped with hose.

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5
Q

According to the BFES operations Manual, What does FDC stand for in the context of a Class 1 standpipe system?
a. Fire Department Control
b. Fire Distribution Center
c. Fire Department Connection
d. Fire Distribution Channel

A

C
* Structure is equipped with an FDC and fire pump.

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6
Q

According to the BFES operations Manual, What is the minimum rated flow required by NFPA 14 for a Class 2 standpipe system?
a. 380 L/min
b. 1892 L/min
c. 1225 kPa
d. 30 litres per second

A

A
* Required by NFPA 14 to deliver a minimum rated flow of 380 L/min

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7
Q

According to the BFES operations Manual, What size hose connection is equipped at a Class 2 standpipe?
a. 38mm
b. 50mm
c. 65mm
d. 75mm

A

A
* 38mm hose connection at standpipe equipped with hose

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8
Q

According to the BFES operations Manual, When should a Class 2 standpipe system be used according to NFPA 14?
a. First response
b. Second response
c. Last resort
d. Only during drills

A

C
* Not to be used unless last resort for civilian and/or firefighter safety

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9
Q

According to the BFES operations Manual, Does a Class 2 standpipe system typically have a fire pump?
a. Yes
b. No

A

B
* Structure may not have a fire pump. Typically fed by domestic city water pressure.

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10
Q

According to the BFES operations Manual, What is the minimum rated flow required by NFPA 14 for a Class 3 standpipe system pre 1993?
a. 380 L/min
b. 1892 L/min
c. 1225 kPa
d. 30 litres per second

A

B
* Required by NFPA 14 to deliver a minimum rated flow of 1892 L/min at the two uppermost or hydraulically most remote outlets at 450 kPa residual pressure pre-1993 and 700 kPa residual pressure post-1993

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11
Q

According to the BFES operations Manual, In Ontario, what is the minimum requirement for Class 3 standpipe systems as per the Ontario Building Code (OBC)?
a. 450 kPa
b. 700 kPa
c. 1225 kPa
d. 1800 L/min

A

A
* Buildings in Ontario do not have to adhere to NFPA and may only supply the minimum requirement of 450 kPa and 30 litres per second (1800 L/min) as per Ontario Building Code

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12
Q

According to the BFES operations Manual, What hose connection sizes are found at a Class 3 standpipe?
a. 38mm and 50mm
b. 38mm and 65mm
c. 50mm and 65mm
d. 65mm and 75mm

A

B
* Both 38mm and 65mm hose connections at standpipe. 38mm outlet equipped with hose

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13
Q

According to the BFES operations Manual, Does a Class 3 standpipe system have both hose connections equipped with hoses?
a. Yes
b. No

A

A
* Both 38mm and 65mm hose connections at standpipe. 38mm outlet equipped with hose

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14
Q

According to the BFES operations Manual, What is the purpose of a Pressure Restricting Device (PRD)?
a. Increase water pressure
b. Regulate water pressure
c. Control static pressure
d. Remove water pressure

A

B
A PRD is a device designed for the purpose of reducing, regulating and controlling or restricting water pressure. PRDs reduce pressures in flowing conditions only

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15
Q

According to the BFES operations Manual, At what pressure range are PRDs installed?
a. Below 450 kPa
b. 690 kPa to 1225 kPa
c. 1225 kPa and above
d. 1800 L/min

A

B
. PRDs are installed when pressures will exceed 690 kPa and not exceed 1225 kPa

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16
Q

According to the BFES operations Manual, What happens if PRDs are not removed?
a. Increased pressure and water volume
b. Adequate flow for hose stream
c. Inadequate pressure and water volume
d. Improved system efficiency

A

C
Most PRDs can be removed. Removal of these devices, if possible, ensures the valve can be fully opened to provide the maximum flow and pressure available in the system. If PRDs are not removed, available pressure and water volume may be inadequate for a safe and efficient hose stream.

17
Q

According to the BFES operations Manual, What do PRDs operate similarly to?
a. Water pump
b. Fire hose
c. Pump operator gating down
d. Fire extinguisher

A

C
These devices operate in a manner similar to a pump operator gating down at the pump panel. PRDs do not compensate for changes in input pressure to maintain a constant discharge pressure and they do not control pressure in static conditions.

18
Q

According to the BFES operations Manual, Why should PRDs be removed, if possible?
a. During emergencies
b. During routine maintenance
c. To decrease water pressure
d. To maximize flow and pressure

A

D
PRDs are installed when pressures will exceed 690 kPa and not exceed 1225 kPa. Most PRDs can be removed. Removal of these devices, if possible, ensures the valve can be fully opened to provide the maximum flow and pressure available in the system. If PRDs are not removed, available pressure and water volume may be inadequate for a safe and efficient hose stream.

19
Q

According to the BFES operations Manual, What is the primary function of a Pressure Reducing Valve (PRV)?
a. Increase outlet pressures
b. Regulate outlet pressures
c. Control static pressures
d. Remove water pressure

A

B
A PRV is a valve designed to actively regulate outlet pressures in both static and flowing conditions. Based on NFPA 14 recommendations, they are required for outlets where static pressures could exceed 1225 kPa.

20
Q

According to the BFES operations Manual, At what static pressure do NFPA 14 recommendations require PRVs?
a. 450 kPa
b. 690 kPa
c. 1225 kPa
d. 1800 L/min

A

C
A PRV is a valve designed to actively regulate outlet pressures in both static and flowing conditions. Based on NFPA 14 recommendations, they are required for outlets where static pressures could exceed 1225 kPa.

21
Q

According to the BFES operations Manual, Can all PRVs be removed?
a. Yes
b. No

A

B
PRVs cannot be removed. Some PRVs are factory pre-set and cannot be adjusted while other PRVs can be adjusted with the proper tools.

22
Q

According to the BFES operations Manual, What does “Fireground Adjustable” refer to in the context of PRVs?
a. Difficult to adjust during an incident
b. Easily adjustable during an incident
c. Adjusted with the proper tools
d. Adjusted only in a controlled environment

A

B
Two terms that can be applied to these valves are Field Adjustable and Fireground Adjustable. Field Adjustable valves may prove difficult to adjust during an incident. Fireground adjustable refers to PRVs that can be easily adjusted. Tools to adjust these valves may be found in the CACF room.

23
Q

According to the BFES operations Manual, Where can tools to adjust Fireground Adjustable PRVs be found?
a. Stairwells
b. Lobbies
c. CACF room
d. Hallways

A

C
Two terms that can be applied to these valves are Field Adjustable and Fireground Adjustable. Field Adjustable valves may prove difficult to adjust during an incident. Fireground adjustable refers to PRVs that can be easily adjusted. Tools to adjust these valves may be found in the CACF room.

2030 World Champs (82 decks)

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