TB PURPLE K DRY CHEM Flashcards

0
Q

Discharge time

A

11 seconds

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1
Q

Discharge range

A

19’-20’

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2
Q

Weighs

A

52 lbs (27 lbs of dry chem)

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3
Q

Coverage

A

~ 30 square feet

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4
Q

Temp restrictions

A

Minus 40 to 120 degrees

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5
Q

Expending cylinders or repairs to

A

Tech services

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6
Q

When should purple k be checked

A

Each tour

Throughly examined once a month

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7
Q

Purple k uses

A

Superior on methanol fires

Effective on gasoline, diesel and compressed gas fires

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8
Q

Purple k use on flammable liquid spill

A
  1. Approach fire from upwind
    Nozzle at 45 degree angle from ground
    Stop at point ~ 10-12 feet from front edge
    Direct stream 6 inches ahead of flame edge
    Use rapid side to side motion
    Extinguish fire at back edge by directing at base of flame
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9
Q

Purple k flammable liquid fire with obstacle

A

Differences than no obstacle

Use two members
Each member covers 2/3 of the fire area

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10
Q

When using a. Dry chemical on a flammable liquid pressure fire you should stop now far out

A

15 feet

Direct dry chem at fuel source first then move down

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11
Q

Using dry chemical on LPG fires in conjunction with fog stream

A

Should not be extinguished unless immediate shut off is possible
Open water nozzle first o

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