Compartment Firefighting (PN 793) Flashcards Preview

LFB Policy Notes & FRU (2020) > Compartment Firefighting (PN 793) > Flashcards

Flashcards in Compartment Firefighting (PN 793) Deck (12)
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1
Q

Can you list 7 of the 9 Hazards associated with compartment fire fighting?

A

1) Backdraft
2) Explosive atmosphere and fire gas explosion
3) Flashover
4) Steam
5) Uncontrolled Ventilation
6) High Temperature
7) Structural deterioration
8) Exposed Utilities
9) Loss of Communications

2
Q

What should a ‘firefighting jet’ comprise of?

A

Minimum 45mm Jet with branch set to 230 lpm

3
Q

When should a second Jet be provided and of what should it comprise?

A

As soon as possible of equal or greater capacity as the original Jet and at least 1 length longer

4
Q

Where should a covering Jet be directed?

A

Suitable surface above the compartment opening. To cool gases and create a curtain

5
Q

According to the note what should a good 360 degree survey of a fire compartment gather information on? (4)

A

Life Risk
Extent of fire and smoke
Entry and Exit points
Potential Ventilation outlets

(LEEP)

6
Q

The IC should weigh the risk of entering the compartment against what? (7)

A

1) Number and Location of Persons involved
2) Location and size of the fire
3) Nature and size of compartment
4) Use and construction of premise
5) Contents and fire loading
6) Potential for fire growth
7) Signs of compartment ventilation

7
Q

What other sources of information may be available to the OIC? (5)

A
MDT
AFA
PIB
Occupier
Signage
8
Q

If confirmed as a small fire what might the OIC consider?

A

The use of hose reels or extinguishers

9
Q

What 4 things should be included in a BA team briefing?

A
  1. Number of and last known location of persons
  2. Location and extent of fire
  3. Nature of Occupancy and contents of compartment
  4. Route and tasks
10
Q

Firefighting Jets must consist of what?

A

All except last 2 lengths in the line should be 70mm to reduce frictional loss. Then 2 x 45mm lengths with a branch set to 230 Lpm

11
Q

Prior to entry what should be done with the Jet being used?

A

It must be checked by opening the branch for several seconds to test the flow and jet pattern settings

12
Q

There are 6 reasons listed where a compartment fire will require one or more 45mm hose lines?

A

1) Deeper penetration required
2) Well established Fire
3) Large or Complex Compartment
4) Compartments with high ceilings (over 5 Metres)
5) Signs of Flashover or Backdraft
6) Fire has breached original compartment