OP Flashcards
Colour codes of extinguishers?
Red- water
Black - carbon dioxide
Blue- powder
Cream- foam
How many extinguishers do appliances carry?
2
Two types of water extinguishers used by LFB?
Chubb and Angus
What type of valve is on extinguishers to recharge?
Schrader valve
Where should the gauge needle be when testing extinguishers?
In green zone
What comes with Angus extinguisher?
Nutting tool
For removal and fitting of head
What’s attached to a Chubb extinguisher head internally?
Siphon tube and filter.
Also has water level mark for checking the refill level
Capacity of water extinguisher?
9 litres
Weight of water extinguisher?
14-15 kg
(When charged)
Discharge duration of water extinguisher?
70secs
Range water extinguisher?
6meters
%of contents discharged from water extinguisher?
95%
Charged pressure of water extinguisher?
15 bar Chubb
12 bar Angus
What type of fire can a water extinguisher be used on?
A
Safety precautions with extinguishers?
Full PPE to be worn when using/testing or charging with visors down when charging or discharging.
Safety pin to be in place when not in use
Testing and charging to take place away from personnel and public
Under no circumstances attempt to remove head, until all pressure has been discharged and gauge reads zero.
When are water extinguishers tested?
On acceptance
Daily
After use
Annually
What type of nozzle does a foam extinguisher had?
Self-aspirating
Capacity of foam extinguisher?
9 litres
Charged weight of foam extinguisher?
14-16 kg
Discharge duration of foam extinguisher?
45 secs
Range of foam extinguisher?
4 metres
% of contents discharged of foam extinguisher?
95%
What type of fire can a foam extinguisher be used on?
A and B
How should a foam extinguisher be applied to fire?
On a vertical surface of possible to allow foam to form a spreading blanket
When are foam extinguishers tested?
Upon acceptance
Daily
After use (by service provider)
Anually (by service provider)
What does a daily inspection of a extinguisher involve?
Check for signs of damage
Inspect hose and nozzle
Confirm gauge needle is in green
Check condition of stowage arrangements on appliance
If a new foam or dry powder extinguisher is required, how should it be done?
Ordered under the “item test due” category and the date of the discharge entered on the “last test date” line.
Where should tests of extinguishers be recorded?
On standard test card
Where should inspections of extinguishers be recorded?
On daily inventory sheet
What is a dry powder extinguisher charged to in pressure?
10 bar (by Service provider)
Capacity of dry powder extinguisher?
9 litres
Charged weight of dry powder extinguisher?
14-16kg
Discharge duration of dry powder extinguisher?
15 secs
Discharge range of dry powder extinguisher?
6 m
% of contents discharged of dry powder extinguisher?
85%
What type of fire can a LFB dry powder extinguisher be used on?
A and B
Loses breathing apparatus need to be worn when discharging dry powder extinguisher?
Yes
If a dry powder extinguisher is used outside, what must be considered?
A higher application rate may be needed
What types of fire can a co2 extinguisher be used?
A B and electrical fires
Weight of co2 extinguisher?
1.5-2 kg of liquified gas
What pressure is a co2 extinguisher charged to?
50bar
What percentage of co2 needs to be in air for extinguisher to be effective?
19-29%
How much heavier is co2 than oxygen?
1.5
What should be worn when using a co2 extinguisher?
Full PPE and breathing apparatus
What type of nozzle does a co2 extinguisher have?
Horn nozzle
Does co2 have a cooling effect?
No
Should be considered when being used, auto ignition temperature may be exceeded and fire may reignite when co2 has dispersed.
How should a dry powder extinguisher be applied to fire?
Horizontally above the flame, ensures powder is drawn into fire and is most effective
Define incident command?
A system to promote the safe and effective resolution of events through the deliberate allocation and direction of resources
ORD?
Operational risk database
SRI?
Site risk information
MDT?
Found on all frontline appliances.
Mobile data terminal
Can provide info about ORD, operational risk database
Types of info that can be available en route to an incident to make an initial assessment?
Call slip
MDT
Operational risk database, via MDT
Local knowledge of crews
Visual signs, (weather,wind,light,smoke etc)
Any radio messages
