Fire And Smoke Flashcards
Where would you detect both smoke and heat for a fire?
Lavatory
What does optical smoke detection use?
Light
What smoke detector uses alpha radiation?
Ionising.
In a labyrinth optical smoke detector, the light source is blanked from the photoelectric sensor.
Sheilded
Regarding fire detection, ion detectors are used to detect…
Smoke
Which option correctly identifies where smoke detectors are used on an aeroplane, based on the following list?
- Engines
- APU
- Cargo holds
- Toilet compartments
- Avionics bays
- Crew rest facilities
3456
Failure of a capacitive fuel indication system will be indicated by…
Empty
What zone is the fire prevention and detection located in, within the engine?
Cold zone.
A heat loop fire wire uses increase/ decrease in capacitance and increase/ decrease in resistance
Increase in capacitance and decrease in resistance
HEAT LOOP FIRE WIRE
Blank in voltage indicates a fault
Blank in voltage indicates a fire
Decrease = fault
Increase = fire
The capacitance type fuel gauging system indicates the fuel quantity by measuring… The dielectric change between blank and blank.
The dielectric change between fuel and air.
In a gaseous loop
High pressure = x
Low pressure = x
High = fire
Low = fault
By law, how many engine extinguishers are there per engine?
2
What is the working principle of a gaseous fire detection system?
Pressure.
When a part of a continuous loop fire detection system is heated:
- its resistance decreases
- its resistance increases
- the current increases
- the current decreases
The combination that regroups all of the correct statements is…
13
Regarding a built-in fire extinguishing system of a turbine engine, what statement(s) is/are correct or incorrect?
- A bleed-air driven (pneumatic) pump is used to discharge the fire agent into the engine compartment
- The built-in fire-extinguishing system is capable of extinguishing an engine fire WITHOUT engine shutdown
Incorrect
Generally, when the fire handle of the engine fire-extinguishing system on an aeroplane is pulled, the effects are:
- opening of the bleed air valves and HP valves on the engine concerned
- arming of the extinguishing system
- immediate discharge of extinguishing agent
- deactivation of the electric generators
The combination that regroups all of the correct statements is…
24
Which of the following statements is correct, as regards an oxygen mask selected to the “DILUTE DEMAND” position?
- Oxygen is delivered when inhaling
- Oxygen is always delivered with a continuous flow
- Air outside the mask is added to the oxygen flow
- A special oxygen reservoir is used containing diluted oxygen
13
What substance must never be used in the vicinity or on parts of an oxygen installation?
Grease or oil
