Foam (Week 2) Flashcards Preview

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Flashcards in Foam (Week 2) Deck (9)
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1
Q

Where is foam stored for industrial and municipal uses?

A

Apparatus tanks

2
Q

What is one application used with the Venturi effect when using foam?

A

Inline educators and foam nozzle educator, and air aspirating nozzle. (They are all correct but test answer is “Air Aspirating Nozzle”

3
Q

AFFF stands for….?

A

Aqueous Film Forming Foam

4
Q

What are the advantages to the CAFS’s? (only need 3)

A
  • Longer fire stream
  • Lightweight hoseline
  • Drain down time
  • Safer fire suppression action
  • Uniformly sized, small air bubbles
  • Adheres to fuel surface
  • Resist heat longer
5
Q

CAFS’s stand for?

A

Compressed Air Foam System

6
Q

What is High Expansion Foam?

A

Special purpose foams, have a detergent base and have a low water content, which minimizes water damage.

7
Q

What are the three applications for High Expansion Foam?

A
  • Concealed spaces such as basements, mines and other subterranean spaces
  • In Class A fire applications
  • In fixed-extinguishing systems for specific industrial uses
8
Q

Which element is NOT needed to result in high quality foam?

A

-Foam, H2O, Mechanical airation are all things needed

VACUUM PUMP is NOT needed

9
Q

What is Class A foam and what textures do they consist of?

A

They are not proportioned as other foams. Their % can be adjusted (with-in) to achieve specific objectives.

  • Dry = (thick) foam suitable for exposure protection and fire breaks require higher %
  • Wet = (thin) foam that rapidly sinks into a fuel surface can be adjusted to a lower %