Fire Protection Systems Flashcards
1
Q
- In what area of an aircraft would you find carbon monoxide detectors?
A
Cockpits & cabin
2
Q
- What color does a CO detector change to when carbon monoxide fumes are present?
A
Green, gray, or black
3
Q
- What are two types of smoke detectors?
A
Photoelectric & visual
4
Q
- Where are smoke detectors use in aircraft?
A
Baggage compartment & lavatory
5
Q
- How are thermal switches wired in thermal switch fire detection system?
A
Parallel with each other & in series with warning lights
6
Q
- Describe the operating principle of a thermal switch fire detection system.
A
One or more lights, thermal switch when hits a certain temp illuminates the lights
7
Q
- Describe the operating principle of a continuous loop fire detection system.
A
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
8
Q
- How does a thermocouple fire detection system differ from the thermal switch system?
A
Thermocouple depends on rate of temperature rise
9
Q
- What are two types of fire extinguishing systems?
A
High rate discharge system uses Halon
Conventional fire system use carbon dioxide
10
Q
- What type extinguishing agent is usually found in a high rate discharge system?
A
Halon
11
Q
- What type extinguishing agent is usually associated with a conventional type extinguishing system?
A
CO2
12
Q
- What is the purpose of the yellow disc in CO2 fire extinguishing system?
A
Indicates which bottle has been discharged
13
Q
- How can you determine the charge of a CO2 extinguisher?
A
Weight it
14
Q
- In a turbine engine Freon (halon) fire extinguishing system, how are bottles discharged?
A
Explosive discharge cartridge detonated electrically, breaking a disc
15
Q
- How is a Freon (halon) fire extinguishing system protected from temperature rises more than set limits?
A
Equipped with thermal fuse, once melted it discharges
