- In what area of an aircraft would you find carbon monoxide detectors?
Cockpits & cabin
- What color does a CO detector change to when carbon monoxide fumes are present?
Green, gray, or black
- What are two types of smoke detectors?
Photoelectric & visual
- Where are smoke detectors use in aircraft?
Baggage compartment & lavatory
- How are thermal switches wired in thermal switch fire detection system?
Parallel with each other & in series with warning lights
- Describe the operating principle of a thermal switch fire detection system.
One or more lights, thermal switch when hits a certain temp illuminates the lights
- Describe the operating principle of a continuous loop fire detection system.
One or more wires imbedded in ceramic core inside conductive tube. When heats up it ceramic core is less resistant allowing current though illuminating the light
- How does a thermocouple fire detection system differ from the thermal switch system?
Thermocouple depends on rate of temperature rise
- What are two types of fire extinguishing systems?
High rate discharge system uses Halon
Conventional fire system use carbon dioxide
- What type extinguishing agent is usually found in a high rate discharge system?
Halon
- What type extinguishing agent is usually associated with a conventional type extinguishing system?
CO2
- What is the purpose of the yellow disc in CO2 fire extinguishing system?
Indicates which bottle has been discharged
- How can you determine the charge of a CO2 extinguisher?
Weight it
- In a turbine engine Freon (halon) fire extinguishing system, how are bottles discharged?
Explosive discharge cartridge detonated electrically, breaking a disc
- How is a Freon (halon) fire extinguishing system protected from temperature rises more than set limits?
Equipped with thermal fuse, once melted it discharges
- How does ambient temperature affect the pressure reading on a fire extinguisher?
Low temps - decrease absolute pressure
High temps- increase absolute pressure
- What type of extinguisher is recommended for brake lines?
Dry powder
- How can you determine the service life of a fire extinguisher discharge cartridge?
Manufactures date on cartridge, service life hours below a predetermined temperature
- What type of hand held fire extinguishers are available of or extinguishing interior aircraft fires?
Water
CO2
Dry chemical
- What type of fire detection system gives a more complete coverage of a fire hazard?
Continuous loop detector system
- Name the different class of fires.
A- combustible materials
B- combustible liquids
C- Eletrical
D- Metal
- How does a photoelectric smoke detector work?
Smoke particles block receptor from light
- How would you determine when the next hydrostatic test is due on a portable fire bottle?
DOT information on bottle, 5 years from last date
