Podcast
Questions and Answers
What is the expected water flow for a residential fire attack using a 1.75” hose line with automatic nozzles?
What is the expected water flow for a residential fire attack using a 1.75” hose line with automatic nozzles?
- 150 GPM (correct)
- 600+ GPM
- 250 GPM
- 500 GPM
Which of the following hose and nozzle combinations is specifically designed for commercial fire attacks?
Which of the following hose and nozzle combinations is specifically designed for commercial fire attacks?
- 1.75” hose line with automatic nozzle
- Deck gun with solid bore nozzle
- 2” hose line with fixed gallonage nozzle (correct)
- 2.5” hose line with smooth bore nozzle (correct)
Which nozzle pressure is required for a 2” hose line with a smooth bore nozzle to achieve 240 GPM?
Which nozzle pressure is required for a 2” hose line with a smooth bore nozzle to achieve 240 GPM?
- 75 psi
- 65 psi
- 50 psi (correct)
- 45 psi
What is the required water flow for a fire attack using a blitz monitor with solid bore tips?
What is the required water flow for a fire attack using a blitz monitor with solid bore tips?
What criteria does the Phoenix Fire Department expect from Company Officers and Sector Officers during a fire attack?
What criteria does the Phoenix Fire Department expect from Company Officers and Sector Officers during a fire attack?
What is the maximum expected water flow for portable appliances used in commercial fire attacks?
What is the maximum expected water flow for portable appliances used in commercial fire attacks?
What is the nozzle pressure for the automatic nozzle carried on a 1 ¾” hose line?
What is the nozzle pressure for the automatic nozzle carried on a 1 ¾” hose line?
What is the length of the crosslay for a 2” hose line with smooth bore nozzle?
What is the length of the crosslay for a 2” hose line with smooth bore nozzle?
What is the nozzle reaction force standard set by the Phoenix Fire Department for a single Firefighter operation using a 1 ¾” hoseline with 75 psi automatic nozzle?
What is the nozzle reaction force standard set by the Phoenix Fire Department for a single Firefighter operation using a 1 ¾” hoseline with 75 psi automatic nozzle?
What is the minimum number of Firefighters required for a 2” hoseline with a 1 1/16” solid bore nozzle at 240 gpm?
What is the minimum number of Firefighters required for a 2” hoseline with a 1 1/16” solid bore nozzle at 240 gpm?
In what scenario is it reasonable for a first due Engine Company to not establish a hydrant supply line?
In what scenario is it reasonable for a first due Engine Company to not establish a hydrant supply line?
What is the nozzle reaction force standard for the operation of a 2 ½” hoseline with a 1 3/16” solid bore nozzle at 300 gpm?
What is the nozzle reaction force standard for the operation of a 2 ½” hoseline with a 1 3/16” solid bore nozzle at 300 gpm?
What size water tank do standard Phoenix Engine Company apparatus typically carry?
What size water tank do standard Phoenix Engine Company apparatus typically carry?
What is essential for an effective fire attack, according to the operational guidelines?
What is essential for an effective fire attack, according to the operational guidelines?
Which nozzle setting requires a larger force when operating with a 1 ¾” hoseline at 150 gpm?
Which nozzle setting requires a larger force when operating with a 1 ¾” hoseline at 150 gpm?
Who is ultimately responsible for ensuring adequate water supplies are available for fire attack operations?
Who is ultimately responsible for ensuring adequate water supplies are available for fire attack operations?
What is the minimum expected standard water flow for a residential fire attack using the specified hose line?
What is the minimum expected standard water flow for a residential fire attack using the specified hose line?
Which of the following best describes the capabilities expected from Company Officers during fire attack operations?
Which of the following best describes the capabilities expected from Company Officers during fire attack operations?
Which hose line configuration is designed to achieve 300 GPM at the correct nozzle pressure?
Which hose line configuration is designed to achieve 300 GPM at the correct nozzle pressure?
What is the purpose of deploying a deck gun or ladder pipe in fire attack operations?
What is the purpose of deploying a deck gun or ladder pipe in fire attack operations?
What nozzle pressure is required for the automatic nozzle used with the 1 ¾” hose line?
What nozzle pressure is required for the automatic nozzle used with the 1 ¾” hose line?
In the context of effective fire operations, what role does the Incident Commander primarily play?
In the context of effective fire operations, what role does the Incident Commander primarily play?
What is the expected hose line capacity for the specified crosslay lengths in Phoenix fire companies?
What is the expected hose line capacity for the specified crosslay lengths in Phoenix fire companies?
Which standard represents the maximum flow achievable by using portable appliances in commercial fire attacks?
Which standard represents the maximum flow achievable by using portable appliances in commercial fire attacks?
What is the average nozzle reaction during testing for a 1 ¾” hoseline with a 45 psi automatic nozzle?
What is the average nozzle reaction during testing for a 1 ¾” hoseline with a 45 psi automatic nozzle?
In cases where the first due Engine Company does not establish a hydrant supply line, which scenario is NOT a valid consideration?
In cases where the first due Engine Company does not establish a hydrant supply line, which scenario is NOT a valid consideration?
How many Firefighters are required for the operation of a 2 ½” hoseline with a 1 3/16” solid bore nozzle at 300 gpm?
How many Firefighters are required for the operation of a 2 ½” hoseline with a 1 3/16” solid bore nozzle at 300 gpm?
Which of the following hose lines requires the highest nozzle reaction during testing?
Which of the following hose lines requires the highest nozzle reaction during testing?
What is the minimum water supply requirement for a first due Engine Company to operate effectively during a fire attack?
What is the minimum water supply requirement for a first due Engine Company to operate effectively during a fire attack?
Which combination of factors does NOT need to be considered to ensure operational safety during a fire attack?
Which combination of factors does NOT need to be considered to ensure operational safety during a fire attack?
What is the expected nozzle reaction force for a single firefighter using a 1 ¾” hoseline with a 75 psi nozzle during a fire attack?
What is the expected nozzle reaction force for a single firefighter using a 1 ¾” hoseline with a 75 psi nozzle during a fire attack?
Which type of nozzle setting requires the greatest force to operate effectively?
Which type of nozzle setting requires the greatest force to operate effectively?
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Study Notes
Fire Attack Equipment and Standards
- Phoenix Fire Department utilizes flexible hose and nozzle packages for effective fire attacks in residential and commercial settings.
- Firefighters must be proficient in using these tools and comprehending their capabilities.
- Company Officers and Sector Officers oversee fire attack operations and ensure effective deployment.
- Incident Commanders manage overall fire attack strategy and provide direction for incident action plans.
Water Flow Standards
- Residential water flow standard: 150 GPM (2.5 gallons per second) using 1.75” hose lines with automatic nozzles.
- Commercial water flow standards include:
- 250 GPM (5 gallons per second) with 2” and 2.5” hose lines using fixed gallonage or smooth bore nozzles.
- 500 GPM (8 gallons per second) with portable appliances.
- 600+ GPM (10+ gallons per second) from deck guns or ladder pipes.
- Standards align with national best practices and adhere to NFPA 1700 and 1710 guidelines.
Hose and Nozzle Packages
- Hose types and components consist of:
- 1 ¾” hose lines (minimum x2) with automatic nozzles, including:
- 150’ crosslay
- 200’ crosslay
- 100’ to 150’ front bumper line
- Automatic nozzle (70 to 200 GPM, 75/45 psi nozzle pressure)
- 2” hoseline with smooth bore nozzles (x1):
- 200’ crosslay or rear mount setup.
- 240 GPM at 50 psi with 1 1/16” tip.
- 2 ½” hose line with smooth bore nozzles (1-2 depending on apparatus):
- 200’ rear mount.
- 300 GPM at 50 psi with 1 3/16” tip.
- Blitz Monitor can achieve up to 500 GPM.
- 1 ¾” hose lines (minimum x2) with automatic nozzles, including:
Nozzle Reaction and Safety
- Nozzle reaction is the force exerted on the firefighter by the nozzle, standard at 70 lbs for single firefighter operations.
- Higher nozzle reaction necessitates more firefighters or fixed ground operations to manage effectively.
- Specific operation standards:
- 1 ¾” hoseline at 75 psi (150 GPM) requires 1 firefighter (65 lbs reaction).
- 1 ¾” hoseline at 45 psi (150 GPM) requires 1 firefighter (60 lbs reaction).
- 2” hoseline at 240 GPM requires a minimum of 2 firefighters (85 lbs reaction).
- 2 ½” hoseline at 300 GPM requires a minimum of 3 firefighters (110 lbs reaction).
Water Supply Considerations
- Standard fire engine carries approximately 500 gallons of water, +/- 50 gallons based on apparatus model.
- Establishing an uninterrupted water supply is crucial for effective fire support.
- Situations permitting a first due Engine Company not to establish a hydrant supply:
- Unknown fire location or route.
- Fires in high-rise buildings.
- Known rescue situations needing immediate response.
- When rapid-fire attack is essential before establishing a supply line.
- Incident Commander/Sector Officer is accountable for ensuring sufficient water supplies at all tactical positions for effective fire operations.
Fire Attack Equipment and Standards
- Phoenix Fire Department utilizes flexible hose and nozzle packages for effective fire attacks in residential and commercial settings.
- Firefighters must be proficient in using these tools and comprehending their capabilities.
- Company Officers and Sector Officers oversee fire attack operations and ensure effective deployment.
- Incident Commanders manage overall fire attack strategy and provide direction for incident action plans.
Water Flow Standards
- Residential water flow standard: 150 GPM (2.5 gallons per second) using 1.75” hose lines with automatic nozzles.
- Commercial water flow standards include:
- 250 GPM (5 gallons per second) with 2” and 2.5” hose lines using fixed gallonage or smooth bore nozzles.
- 500 GPM (8 gallons per second) with portable appliances.
- 600+ GPM (10+ gallons per second) from deck guns or ladder pipes.
- Standards align with national best practices and adhere to NFPA 1700 and 1710 guidelines.
Hose and Nozzle Packages
- Hose types and components consist of:
- 1 ¾” hose lines (minimum x2) with automatic nozzles, including:
- 150’ crosslay
- 200’ crosslay
- 100’ to 150’ front bumper line
- Automatic nozzle (70 to 200 GPM, 75/45 psi nozzle pressure)
- 2” hoseline with smooth bore nozzles (x1):
- 200’ crosslay or rear mount setup.
- 240 GPM at 50 psi with 1 1/16” tip.
- 2 ½” hose line with smooth bore nozzles (1-2 depending on apparatus):
- 200’ rear mount.
- 300 GPM at 50 psi with 1 3/16” tip.
- Blitz Monitor can achieve up to 500 GPM.
- 1 ¾” hose lines (minimum x2) with automatic nozzles, including:
Nozzle Reaction and Safety
- Nozzle reaction is the force exerted on the firefighter by the nozzle, standard at 70 lbs for single firefighter operations.
- Higher nozzle reaction necessitates more firefighters or fixed ground operations to manage effectively.
- Specific operation standards:
- 1 ¾” hoseline at 75 psi (150 GPM) requires 1 firefighter (65 lbs reaction).
- 1 ¾” hoseline at 45 psi (150 GPM) requires 1 firefighter (60 lbs reaction).
- 2” hoseline at 240 GPM requires a minimum of 2 firefighters (85 lbs reaction).
- 2 ½” hoseline at 300 GPM requires a minimum of 3 firefighters (110 lbs reaction).
Water Supply Considerations
- Standard fire engine carries approximately 500 gallons of water, +/- 50 gallons based on apparatus model.
- Establishing an uninterrupted water supply is crucial for effective fire support.
- Situations permitting a first due Engine Company not to establish a hydrant supply:
- Unknown fire location or route.
- Fires in high-rise buildings.
- Known rescue situations needing immediate response.
- When rapid-fire attack is essential before establishing a supply line.
- Incident Commander/Sector Officer is accountable for ensuring sufficient water supplies at all tactical positions for effective fire operations.
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