Wildland Ch 12 - Water Supplies and Operations Flashcards

1
Q

What do you do to a dry hydrant before drafting from it?

A

Flow into it to dislodge anything in the strainer

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2
Q

Lightweight, single jacket, and collapsible attack hose

A

Forestry fire hose

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3
Q

Used to take advantage of flowing water that is above the fire

A

Gravity sock

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4
Q

Portable pumps can supply what gpm

A

500

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5
Q

Each pump operates independently and the flow is dependent on individual pump ratings

A

Staged setup

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6
Q

What are the three portable pump flow setups

A

Staged, parallel, and series

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7
Q

pump configurations utilized to increase the volume of water

A

parallel setup

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8
Q

dual pump effort used when increasing pressure

A

Series setup

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9
Q

Discharge from one pump is hooked into intake of another

A

series

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10
Q

Pump to discharge hose lay

A

Simple hoselay

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11
Q

What are the two most common types of wildland hoselays

A

simple and progressive

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12
Q

designed to quickly and continuously move water from the anchor point to the fire without having to shut off water at the pump

A

Progressive hoselay

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13
Q

Water or water and soil together to extinguish burning materials

A

Wet mop up

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14
Q

Science of water in motion and at rest

A

Hydraulics

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15
Q

What is the initial mop up depth

A

50ft

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16
Q

What is the common mop up depth

A

200ft

17
Q

total pressure needed to overcome all friction, appliances and elevation loss or gain while maintaining adequate nozzle pressure

A

Pump discharge pressue

18
Q

basic pdp formula

A

pdp = np + FL

19
Q

friction loss formula

A

fl = coefficent x quantity of water in gpm squared x length of hose in feet

20
Q
A