Engine CO OPS ✅ Flashcards by Jon Paul Letki

The 904K Piercing Nozzle flows what GPM at 100 PSI?

175 GPM.

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The hole for Bresnan Distributors should be placed where?
How big should the hole be?

Placed directly above the fire.

Hold should be 12” x 12”.

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The Elkart Brass R.A.M. XD has a hydraulic stability system that uses reaction force to stabilize it. How many GPM are needed to activate this system?

Approximately 350 GPM.

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After initial knock down, what size hose lines can be extended off of the Mercury Quick Attack Monitor?

1-3/4” hose off the end of the 1-1/4” stacked tip.

2-1/2” hose off the outlet base of the unit.

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Water cans have a discharge time of how many seconds?

55 seconds.

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What type of an extinguisher should be used on sensitive electrical equipment?

CO2. It leaves no residue behind.

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CFD’s standard water can has a UL rating of 2A. Each A of this rating system is equal to the fire suppression capability of how many gallons of water?

1.25 gallons.

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With Class B foam, what is the application rate for Hydrocarbons (gasoline & diesel)?

3%.

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With Class B Foam, what is the application rate for Polar Solvents (alcohol or acetone)?

6%.

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What is the most common cause of Foam Eductor failure?

Excessive back pressure.

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What is the correct PSI for the Elkart Inline Eductor & the PRO/Pak?

Elkhart Inline Eductor = 200 psi.

PRO/Pak = 100 psi.

Pg 21-22

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What is the maximum length of 1-3/4 hose that can be used between the Elkart Brass Inline Eductor 125 gpm and the nozzle?

200 feet.

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State Farm Blockers / ODOT freeway assistance vehicles can be contacted on what radio channel?

D06-FSP, One click past 9 Police Fire.

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Smooth Bore Nozzles are designed to operate at what nozzle pressure?

50 PSI

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What is the ideal nozzle pattern in a large commercial space?

Sweeping motion at the ceiling level.

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What are the areas where the Split Stretch has the most benefit?

Tight urban environments.

Hotel / Motel style residences that have a common access hallway.

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To estimate a stretch, the Length, Width & Set Back of a structure is added together. How many feet are added if there is a one story change in elevation?

50 feet

Pg 63

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If an attack line must be extended, what type of roll offers the fastest deployment because it keeps both couplings in the same place?

The double donut roll.

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A single 3”, (vs a 5”) supply line with a shorter lay, can provide up to how many GPM?

800 GPM.

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Each CFD apparatus mounted pump is rated for how many GPM at draft?

1,500 GPM.

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When Pumping in Series, the Supply Pumper should be placed as near the hydrant as possible. This should preferably be within how many feet of the hydrant?

25 feet.

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What is the actual discharge capacity of a two-stage pump while in Pressure Mode?

70% of the total capacity of the pump.
70% 0f 1,500 GPM is 1,050 GPM.

Pg 99

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Are CFD apparatus pumps kept “Wet” or “Dry”? Regardless of ambient temperature?

Wet.

116

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During prolonged parking during cold weather runs. The pump should be engaged. What 2 valves should be opened?

Tank to Pump
Tank Fill

116

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If the pressure transducers fail on a Pump Boss it will not operate above idle in Pressure Mode. If this happens on scene what is the only option?

Use RPM Mode 117

What is the starting pressure when supplying the turntable of a Tiller Ladder?

150 PSI. Starting point. 119

45° of a door CLOSEST to the Engine is?

The inside of the door PG 69

45° of a door FARTHEST away from the engine is?

The outside of the door. PG 69

To help create less of a pinch point, the hose line should be positioned on the side of the door _____ of the fire's location.

Opposite the fire's location PG 69

There are 2 basic options for extending a hoseline.

Extending at the truck Extending at the nozzle PG 72

Extending an attack line should NOT be done in a/an _____?

Should not be done in a IDLH atmosphere. PG 73

On a garden stretch, the appliance should be placed approximately ____ ft from the attack lines entrance point.

Approximately 10 ft PG 75

To combat the weight of the water pulling the hose down during a vertical stretch, what is the "general rule of thumb" for a 2-story stretch and a 3-story stretch?

2-story stretch - 50' of hose on the fire floor landing 3-story stretch - 75' of hose on the fire floor landing PG 76

The vertical hook stretch method should not be used over how many stories?

Should not be used over 3 stories. PG 77

The ELKHART BRASS R.A.M. XD is NOT to exceed how many GPM and/or PSI?

Operation is NOT to exceed 500 GPM and/or 150 psi Pg 15

On the MERCURY QUICK ATTACK MONITOR, which stack tip will allow a 1-3/4" hose line to be connected?

1-1/4" stacked tip will allow the 1-3/4 hose line to be be connected. Pg 16

Per the UL (Underwriters Laboratories), the "A" in a rating like 2A, each number indicates how many gallons of water?

1.25 Gallons. Examples 2A = 2.5 Gallons 3A = 3.75 Gallons Pg 17

What is the recommended percentage knob setting on the PRO/PAK for ordinary combustible materials using Class A foam?

Ordinary combustible materials recommended percentage know setting for class A are 0.1%-1% Pg 22 and 23

CFD carries what 2 series of nozzles?

Elkhart Chief and Chief XD series nozzles. Engines 2019 and newer carry Chief XD Pg 31

The principal that states "when building an attack package, the orifice of the nozzle should ideally not be greater than half the diameter of the hose."

Freeman Principle - Smooth Bore Pg 31

Which CFD nozzles have the "integrated tip"?

Elkhart Chief nozzle has the integrated tip. Pg 35

After cleaning a nozzle, what is the recommended lubricant per the operating manual?

Dow-Corning #7 lubricant Pg 36

The backup firefighter should check for "LFL"... what does "LFL" stand for?

Life - victims Fire - location/direction Layout - stairs/rooms Pg 41

A common phrase on the training around the country is "_______"

"The fire goes as the first line goes" Pg 43

Initial line selection: What is a 1-3/4" hose line best used for?

Anything from a single room and contents fire, up to 3 rooms of fire. Pg 43

Initial line selection: What are two 1 3/4 hose line or one 2" hose line best used for?

More than 3 rooms of fire Pg 43

Initial line selection: What is a 2-1/2" hose line best used for?

One floor or more of fire Pg 43

Initial line selection: What hose lines are best for commercial structures?

2" or 2 1/2" hose line Pg 43

Initial line selection: Consider a Master stream for...

Defensive Operations Pg 43

What are the components of the "Exponential Engine Theory"? - Brian Brush

• Enough water to extinguish BTUs • Every line should be set to fight different fires • Different "weapons" for different fights • Rule of Thumb: the next larger line/nozzle size should approximately double the GPM Pg 43

The Andy Frederick's ADULTS acronym is used to outline 2-1/2" hand line use. What does ADULTS stand for?

Advanced fire on arrival Defensive operations Unable to determine the extent/size Large, non-compartmentalized areas Tons of water Standpipe System Operations Pg 43

What is the weight of a charged 2" and a charged 2-1/2" hose line per 50'?

2" - 68lbs per 50' 2-1/2" - 103 lbs per 50' Pg 50

What is the first and most important consideration when choosing a hand line to combat a fire? (Size vs. maneuvering)

Flow, should be the most important consideration. Pg 51

What hose load used by CFD is the fastest to deploy?

Triple Fold Pg 53

What hose load used by CFD is the more versatile around cars and fixed obstacles?

Modified Minuteman Pg 54

To estimate the stretch, what 3 to 4 things must be added together?

•Length •Width •Setback •Elevation Pg 63

When calculating available hydrant water,what is the remaining supply after a drop 10%, 11-15%, 16-20% and greater than 20% of the static pressure?

•0-10% - 3x the amount that caused the drop remaining •11-15% - 2x the amount remaining •16-20% - 1x the amount remaining •>20% - 1/2 the amount remaining Pg 86

What are the driver/pump operators 3 priorities?

•Priority one - Get water for crew •Priority two - Get water for yourself/engine •Priority three - Get water for everyone else Pg 94

When operating on tank water alone, should the driver/operator charge a backup line?

No. They should wait until they have a supply established. Pg 95

Once the attack engine operator opens their supply intake, they should close their TANK TO PUMP to maintain an emergency supply of how much?

1/4 tank emergency supply use Pg 95

What are some examples of when the demand for water would exceed the capacity of a two-stage pump in pressure mode?

•Multi line operations •Quick attack operations •Deck gun operations •Ladder pipe operations Pg 100

How many INTAKE RELIEF valves does each CFD engine have?

3 intake relief valves Pg 107

Newer CFD Sutphen apparatus come with the intake relief valves set to what PSI?

Intake Relief valves are set to 180psi Pg 109

What is "Back Flushing"?

The act of flowing water in reverse through the pump to clear debris. Pg111

During freezing weather, what drains should remain closed vs open?

The master drain should be kept closed, but every other drain should be left open during freezing weather. Pg 116

What are the "FAULT CODES" displayed on the pump boss if the transducers fail?

E06 or F06 Pg 117

What PSI is the STARTING point at the Platforms pump?

80 PSI at the Platforms pump should be the STARTING point. Pg 121

A 3" supply line will require approximately how many gallons per 100' to fill the hose line?

37 Gallons per 100' Pg 82

What is the only operation that can NOT be done in volume mode?

Standpipe Operations Pg 100

What is the max effective range for a water can?

44-55 feet Pg 17

What is the Freeman Principal with regard to the Smoothbore Nozzle?

The principal that states "when building an attack package, the orifice of the nozzle should ideally not be greater than half the diameter of the hose." Pg 31