Engine Company Misc. Flashcards
Engine Operations
Equipment: Hose- 1 3/4” rubber lined
2.2.1- Use
2.2.3- Operational Specs (4)
2.2.1- Primary attack hose for firefighting
2.2.3- 1) 50ft sections
2) Coupling is 1 1/2”
3) Max 250 psi
4) Friction loss is 20 psi per length
Engine Operations
Equipment: Hose- 2 1/2” rubber lined
2.3.1- Use
2.3.4- Operational Specifications (4)
2.3.1- Most versatile hose in FDNY. Attack of supply line
2.3.4- 1) 50ft sections
2) 2 1/2” couplings
3) 250 psi Max
4) 5psi friction loss per length
Engine Operations
Equipment: Hose- 2” polyurethane-lined lightweight hose
2.4.1- Color
2.4.3- Use
2.4.4- Operational Specs (6)
2.4.1- Green with red stripes
2.4.3- Lead attack length on a residential standpipe
2.4.4- 1) 50ft lengths
2) 2 1/2” coupling
3) 250psi max
4) 10psi friction loss
5) Midpoint is painted red. “A-fold”, smooth deployment
6) Reflective arrows on female coupling pointing towards water source
Engine Operations
Equipment: Hose- 2 1/2” polyurethane-lined lightweight hose
2.5.1- Color
2.5.3- Use
2.5.4- Operational Specs (6)
2.5.1- White with red stripes
2.5.3- Attack line on standpipe systems
2.5.4- 1) 50ft lengths
2) 2 1/2” coupling
3) 250psi max
4) 5psi friction loss
5) Midpoint is painted red. “A-fold”, smooth deployment
6) Reflective arrows on female coupling pointing towards water source
Engine Operations
Equipment: Hose- 3 1/2” rubber lined
2.6.3- Use
2.6.4- Operational Specs (4)
2.6.3- Only used as a supply line
2.6.3- 1) 50ft lengths
2) 3” coupling
3) 300 psi max
4) Friction loss is 3psi depending on length of stretch and amount of flowing water
Engine Company Operations
Equipment: Nozzles
Main stream tip (MST) (3) vs. Outer stream tip (OST) (4)
MST- 1)Attach directly to shut off
2) Threaded outlet orifice
3) Used for fire attack
OST- 1) Smaller
2) Can attach to threaded outlet orifice of MST
3) Only FDNY OST is 1/2” tip
4) Only attached to MST for overhaul if necessary
Engine Company Operations
Equipment: Nozzles
Define: Nozzle Pressure
The PSI at the tip of the nozzle
Engine Company Operations
Equipment: Nozzles
Define: Nozzle reaction
Force of water flowing through the nozzle. Based on the size of the tip and supplied nozzle pressure. “How strong the nozzle feels.” Measured in pounds.
Engine Company Operations
Equipment: Nozzles
Define: Flow rate
Amount of water discharged by nozzle in gallons per minute.
Engine Company Operations
Equipment: Nozzles- Solid stream
3.6.1- Info (4)
1) Also called smooth bore
2) High volume at low pressure
3) Long reach, superior penetration
4) Manageable nozzle reaction
Engine Company Operations
Equipment: Nozzles- Solid stream 1 3/4”
3.6.2- 1) Size 2) Intake and outlet size 3) Required nozzle pressure 4) Flowrate at required nozzle pressure 5) Nozzle reaction at required nozzle pressure
6) Overhaul
1) 1 3/4” nozzle with 1 3/4” hose
2) 1 1/2” coupling, 15/16 MST for attack
3) Requires 50psi at the tip
4) 180gpm at 50psi
5) 68lbs at 50psi
6) 1/2” OST can attach to MST for overhaul
Engine Company Operations
Equipment: Nozzles- Solid stream 2 1/2”
3.6.3- 1) Size 2) Intake and outlet size 3) Required nozzle pressure 4) Flowrate at required nozzle pressure 5) Nozzle reaction at required nozzle pressure 6) Flowrate at +10 nozzle pressure 7) Nozzle reaction at +10 nozzle pressure 8) How to identify
1) 2 1/2” nozzle used with 2 1/2” hose
2) 2 1/2” coupling, 1 1/8” MST for attack
3) 40psi
4) 235 gpm at 40psi
5) 78lbs at 40 psi
6) 265 gpm at 50psi
7) 98lbs at 50psi
8) 2 1/2” marked with white stripe around MST
Engine Company Operations
Equipment: Nozzles- Solid stream 2”
3.6.4- 1) Size 2) Intake and outlet size 3) Required nozzle pressure 4) Flowrate at required nozzle pressure 5) Nozzle reaction at required nozzle pressure 6) Flowrate at +5 nozzle pressure 7) Nozzle reaction at +5 nozzle pressure
1) 2” nozzle used with 2” lightweight hose
2) 2 1/2” coupling and 1” MST for attack
3) Requires 50psi nozzle pressure at the tip
4) 210 gpm at 50psi
5) 77lbs at 50psi
6) 220 gpm at 55psi
7) 85lbs at 55psi
Engine Company Operations
Equipment: Nozzles- Fog
3.7.1- 2 types of streams
3.7.3- Fog pattern uses (3)
3.7.4- Two classifications of fog nozzles
3.7.1- Straight and Fog
3.7.3- Hydraulic ventilation, disperse gas vapors, fire near electrical equipment
3.7.4- Variable flow and Variable pressure
Engine Company Operations
Equipment: Nozzles- Fog
Variable Flow vs. Variable Pressure
VF- Different flow rate depending on pattern. All FDNY fog nozzles!
VP- (non-automatic)- Allow nozzle pressure to change as pattern is adjusted. All FDNY fog nozzles!
Engine Company Operations
Equipment: Nozzles- Fog nozzle 1 3/4”
3.7.5- 1) Size 2) Intake and outlet size 3) Required nozzle pressure 4) Flowrate at required nozzle pressure 5) Nozzle reaction at flow rate 6) Which way for each stream
1) 1 3/4” nozzle for 1 3/4” hose
2) 1 1/2” coupling, fog tip
3) 100psi required nozzle pressure
4) 200gpm at 100psi
5) 101lbs at 200gpm
6) Straight stream right, fog stream left. Tight to the right
Engine Company Operations
Equipment: Nozzles- Fog nozzle 2 1/2”
3.7.6- 1) Size 2) Intake and outlet size 3) Required nozzle pressure 4) Flowrate at required nozzle pressure 5) Nozzle reaction at flow rate 6) Which way for each stream
1) Use on 2 1/2” hose
2) 2 1/2” to fog
3) 100psi
4) 250gpm at 100psi
5) 121lbs at 250gpm
6) Straight right, fog left. Tight to the right
Engine Company Operations
Equipment: Nozzles- Fog tip 2 1/2”
3.7.7- 1) Name 2) Use 3) Intake and outlet size 4) Operating pressure 5) Nozzle reaction at flow rate 6) How to connect
1) Aquastream
2) Fog spray for mass decon
3) 2 1/2” to non-adjustable fog
4) 50-80psi
5) 750gpm at 100psi
6) Apparatus outlet or ladder pipe or 2 1/2” hoseline
Engine Company Operations
Equipment: Nozzles- Fog tip Akron Turbomaster
3.7.8- 1) How to connect 2) Use 3) Intake and outlet size 4) Operating pressure 5) GPM (4)
1) Tower ladder waterway
2) Mass decon
3) 2 1/2” coupling to adjustable fog pattern
4) 100psi
5) 500, 750, 1000, 1250 gpm
