PUMPING OPERATIONS

Question 1

Pumping Multiple Lines

Static pressure and Residual
pressure can be used to
estimate the available water
supply. Remember that there is
no residual pressure when
pumping from the \_\_\_\_\_\_ \_\_\_\_\_
or \_\_\_\_\_\_\_. Residual pressure is only displayed on the \_\_\_\_\_\_ gauge when the supply side of the pump is under pressure (from a \_\_\_\_\_\_, \_\_\_\_ \_\_\_\_, or \_\_\_\_\_).

Answer 1

Booster tank or drafting

Intake

(Hydrant, relay engine, or tanker)

Question 2

Pumping Multiple Lines

To estimate the remaining supply, take note of the static pressure prior to charging the first line. After charging the line and water is flowing, note the residual pressure. The drop in pressure from static pressure to residual pressure helps determine if more lines can be supplied. Subsequent drops in residual pressure can be used to make further supply estimates.

If the drop is less than __% > you can add __ more lines of equal GPM

If the drop is from __% to __% > you can add __ more lines of equal GPM

If the drop is from __% to __% > you can add 1 more line of equal GPM

If the drop exceeds __% > you may be able to ____ ____ ____ only

Answer 2

10%
3 more lines

10% to 20%
2 more lines

20% to 25%
1 more line

25%
Smaller lines only

Question 3

Pumping Multiple Lines

• After stopping the valve at the desired pressure, turn the discharge handle ___ degrees to lock in position

Answer 3

45 degrees

Question 4

Ladder Pipes

Ladder trucks have a nozzle affixed to the ladder tip which may be an ___ PSI automatic fog nozzle or smooth bore stacked tips. Automatic Fog nozzles are rated up to ______ GPM however the waterway is limited to ______ GPM. Smooth bore tips range up to 2”.

Answer 4

80 PSI

2000 GPM

1000 GPM

Question 5

Ladder Pipes

When supplying a ladder pipe within ____’ the recommended initial PDP is ____ PSI (any nozzle). The ladder company engineer has a digital flow meter (right) on the turntable pedestal. Proper flow adjustments can be made by communicating with the ladder company engineer.

Answer 5

100’

150 PSI

Question 6

Master Streams

Each engine carries a master stream appliance (deck gun) that is mounted to the top of the pump and can be removed and used as a large ground monitor. Both smooth bore tips and a fog nozzle are provided.

• When used from the engine, the device must be ______
• When mounted on the ground monitor base, do ____ ______

Answer 6

Elevated

Not elevate

Question 7

Master Stream

Fog – nozzle pressure is ____ PSI. Flow is adjustable in increments of ____, ____, _____, and _____ GPM.

Answer 7

100 PSI

500, 750, 1000, and 1250 GPM

Question 8

Smooth Bore – nozzle pressure is ___ PSI.
1 3/8” - _____ GPM
1 1/2” - _____ GPM
1 3/4” - _____ GPM
2” - _____ GPM
(Some engines may have a _____” tip that flows 400 GPM).

Answer 8

80PSI

500 GPM
600 GPM
800 GPM
1000 GPM

1-1/4

Question 9

Master Streams

Use the following pressures for the Large Ground Monitor in addition to NP:

• Add ___-___ PSI for friction loss (FL) in the appliance.

(For higher GPM expect friction loss to be closer to ___ PSI)

• Add ___ PSI FL for each ____’ of ____” siamesed hose for friction loss.

Answer 9

10-25 PSI

25 PSI

25 PSI

100’ of 2-1/2”

Question 10

Master Streams

Engines carry a mini-monitor with a single _____” inlet. It flows up to ____ GPM at ____ PSI. A hose stretch in excess of 200’ will require the use of a Siamese and dual 2 1⁄2” hose lines. Another option is to select a ____ GPM setting on the nozzle.

Answer 10

2-1/2”

500 GPM

100 PSI

Lower

Question 11

Hydrant Connections

The engineer has the following options when connecting to the hydrant. Select the method that is most practical and provides the necessary flow

Answer 11

• Single 5” hose
• 6” hard suction hook-up
• Full hydrant connection
• Single 6” soft-sleeve hose

Question 12

Hard Suction Hook-up

If the hydrant is already in use, make preparations and initial approach prior to shutting down the hydrant and disconnecting 5” hose. The goal is to shut down the hydrant for as short a period as possible, preferably less than ___ ______. Prior to shutting down the hydrant establish communications with the engineer on scene.

Answer 12

One minute

Question 13

6” Soft-intake Hose

This hose is preferable where maximum volume is needed but hard suction hose is impractical. Hard suction hose and 6” soft-sleeve hose connected to a high flow hydrant will permit flows up to ______ GPM.

The additional flow of this hose is negated when used with the PIV, so use of this hose requires removal of the PIV and alternate methods to bleed air. The BIV has no flow restriction and does not have to be removed.

Answer 13

2000 GPM

Question 14

Full Hydrant Connection

The full hydrant connection uses the ______ and one _____” discharge on the hydrant to increase water flow to the engine. Connecting the second ___” hose to the 2 1⁄2” hydrant connection requires the storz to ____” adapter and an additional section of 5” hose. In most cases this will provide a ____% increase in water supply and can be accomplished by one crew member.

Answer 14

Steamer

2-1/2

5”

2-1/2

25%

Question 15

Relay Pumping

The recommended initial PDP is ___ PSI plus ___ PSI per ___’ of hose. This will compensate for friction loss and provide ample residual pressure for the next engine. After setting the initial pressure communicate with the engineer on scene (or next in the relay) to ensure proper pressure.

Answer 15

50 PSI

10 PSI

100’

Question 16

Relay Pumping

The goal is to have ___ PSI residual pressure at each pump (with the exception of the supply engine). This residual pressure provides a volume margin in the event increased flow is needed. There are only two limitations for source and relay engines – ____ PSI maximum PDP and ___ PSI minimum residual pressure. If these limits are reached and more volume is needed at the scene locate an additional water source.

Answer 16

50 PSI

200 PSI

10 PSI

Question 17

Relay Pumping

The practical volume limit of 5” hose is _____ GPM ( _____ times the capacity of 2 1⁄2” hose). Attempts to pump more volume will result in additional friction loss. It may be possible for one engine to pump a pair of 5” supply lines, provided the hydrant is capable of supplying the volume.

Answer 17

1600 GPM

Four

Question 18

Relay Pumping

Each engine shall pump 5” hose through the LDH discharge. In the event one engine is able to pump two 5” lines, the 2 1⁄2” located on the officer’s side is preferred (it has __” piping with ____ “ threads).

Answer 18

3”

2-1/2”

Question 19

Tandem Pumping

The standard method to supply another engine on scene is by _____ water. This pressure must be supplied at PDP, which could be well over ____ PSI if the discharging engine were also operating handlines.

Answer 19

Discharging

100 PSI

Question 20

Tandem Pumping

In alternative method is to supply the second attack engine “____ to ____”. The initial attack engine is simply allowing the second engine to have the _____ water. By providing this water supply from the intake you avoid the high pump discharge pressure yet still provide the same volume. This is called ____ ____. 

Answer 20

“Intake to intake”

residual water

Tandem pumping

Question 21

Tandem Pumping

The second attack engine cannot steal water from the initial attack engine. However, either engine can draw both pumps below ____ PSI ____ and caused both pumps to cavitate. Both engines must maintain a residual of ____ PSI.

Answer 21

10 PSI residual

10 PSI

Question 22

Sprinklers and Standpipe Operations

Try to place the engine within ____’ of the FDC

Answer 22

100’

Question 23

Sprinkler System

PDP is ____ PSI. The engineer has to watch the discharge gauges closely. If a drop in pressure is noted, increase the pressure back to ____ PSI. A drop in Pressure and the kids in a crease in flow a sign that more sprinkler heads have opened. 

Answer 23

150 PSI

150 PSI

Question 24

Standpipe Systems

Initial pump discharge pressure PDP Shall be ____ PSI.

Answer 24

100 PSI

Question 25

Operational concerns with FDCs

• if the FTC has a frozen swivel, install a ____ ____ ____ and a ____ ____.
• if the FTC is blocked or inoperable, use a 2-1/2 ____ ____ and a _____ to pump into the first floor standpipe outlet.

Answer 25

2-1/2 double male
double female

2-1/2 double female and a Siamese

Question 26

Operational concerns with FDCs

Older buildings may have a pressure limitation on their standpipe system of ____ PSI. Read more pg 67.

Answer 26

200 PSI

Question 27

High Pressure Private Systems

You may encounter private water supply systems with pressures up to ____ PSI.

Answer 27

175 PSI

Question 28

Drafting

For drafting, the transfer valve if equipped must be placed in ____ and the governor in the ____ mode. Once a draft has been established switched the governor to ____ if supplying handlines. The governor will not allow you to draft in ____ mode.

Answer 28

VOLUME
RPM mode
PSI
PSI mode

Question 29

Drafting

The maximum height for drafting is 25 feet, measured from the ____ ____ to the ____ ____. 

If the surface of the water is more than ____’ ____ the ____ do not expect to reach full pump capacity.

Answer 29

Water surface to the steamer connection

10’ below the steamer

Question 30

Drafting

The static water source must be deep enough to allow ____ ____ of strainer clearance from the bottom and ____” ____ the ____ ____. Shallow placement of the strainer will create a ____, drawing air into the strainer and causing loss of prime. A ____ ____ may be used to break the ____. Use a ____ ____ or Secure the strainer with rope to keep hard suction off the bottom.

Answer 30

one foot 
18” below the water surface 
vortex
booster stream
vortex 
ground ladder

Question 31

Drafting

Pumps rated at ____ or ____ GPM must use both steamer connections to reach full pump capacity. 

Answer 31

1750 or 2000 GPM

Question 32

Drafting

Before activating the primer increase throttle speed to ____ - ____ RPM

For a 1500 GPM pumps limit the primer use to ____ ____. For a _____ or _____ GPM pump you can extend this time to ____ ____.

Answer 32

1000-1200 RPM

45 seconds

1750-2000 GPM

90 seconds

Question 33

Drafting

While activating the primer closely watch the master intake gauge. I need a wall immediately move toward The _____ side (if not, suspect an air leak). Within the designated time limits pressure will build on the discharge side as indicated on the master discharge gauge. Allow pressure to build steady above ____ psi before disengaging the primer.

Answer 33

Vacuum

50 PSI