halon fire extinguisher Flashcards
1
Q
what does a cockpit crew member always uses in case of using the halon fire extinguisher
A
oxygen
2
Q
what does the halon fire extinguisher do
A
accomplishes flame retardation by enclosing oxygen molecules and flammable gases
3
Q
what is the method of use of a halon fire extinguisher
A
- remove safety pin
- keep extinguisher upright
- squeeze handles
- direct at base of flames with continuous flow
- have flight crew informed
- make sure fire is completely extinguished, check for re-ignition
- have cockpit crew informed when 100% sure fire has been extinguished
4
Q
what is halon
A
liquid gas. it consists of 85% liquid and 15% gas
5
Q
what is the colour of the halon fire extinguisher
A
red
6
Q
what is the advantages of a halon fire extinguisher
A
- does not leave any chemical residue to contaminate or corrode
- low hot <-> cold reaction on electrical equipment and metal
- no detoriation of vision
- effective in all classes of fire
7
Q
what is the range of the stream of the halon fire extinguisher
A
2.5 - 4 metres
8
Q
what is the pre-flight check of a halon fire extinguisher
A
- needle of indicator in green band
- safety pin in place
- correctly stowed
9
Q
how long is the discharge time of a halon fire extinguisher
A
± 10 seconds
