11.8 Fire Protection Flashcards by Dylan Sinclair

What are the three components required for a fire to occur?
A) Fuel, oxygen, and heat
B) Fuel, smoke, and heat
C) Fuel, oxygen, and water

A) Fuel, oxygen, and heat

How well did you know this?

Not at all

Perfectly

Which of the following describes combustion or burning?
A) A rapid oxidation process that releases heat and light
B) The slow decay of fuel in the presence of heat
C) The chemical reaction between water and oxygen

A) A rapid oxidation process that releases heat and light

How well did you know this?

Not at all

Perfectly

In modern-day aircraft, what does a ‘fixed’ fire protection system refer to?
A) A portable fire extinguisher
B) A permanently installed fire detection and extinguishing system
C) A fire warning light system

B) A permanently installed fire detection and extinguishing system

How well did you know this?

Not at all

Perfectly

Which of the following is NOT a designated fire zone in modern aircraft?
A) Engines and APU
B) Lavatories
C) Crew sleeping compartments

C) Crew sleeping compartments

How well did you know this?

Not at all

Perfectly

What type of fire detection system is commonly used in reciprocating engine or small turboprop aircraft?
A) Optical detectors
B) Overheat detectors
C) Carbon monoxide detectors

B) Overheat detectors

How well did you know this?

Not at all

Perfectly

What is the primary purpose of overheat warning systems in aircraft?
A) To detect smoke in cargo areas
B) To alert the crew of an overheat condition that could lead to a fire
C) To monitor fuel levels

B) To alert the crew of an overheat condition that could lead to a fire

How well did you know this?

Not at all

Perfectly

What is a key feature of thermal switch systems in fire detection?
A) They sense the rate of temperature rise
B) They complete electrical circuits when a certain temperature is reached
C) They use ionised air to detect smoke

B) They complete electrical circuits when a certain temperature is reached

How well did you know this?

Not at all

Perfectly

What is the main function of thermocouple fire warning systems?
A) To sense a fire by measuring electrical resistance
B) To detect the rate of temperature change
C) To detect visible flames using optical sensors

B) To detect the rate of temperature change

How well did you know this?

Not at all

Perfectly

How do continuous loop fire detection systems work?
A) By measuring the temperature of surrounding air
B) By continuously monitoring a thermal sensing element for changes in resistance
C) By detecting visible flames

B) By continuously monitoring a thermal sensing element for changes in resistance

How well did you know this?

Not at all

Perfectly

What is a common feature of pneumatic continuous loop fire detection systems?
A) They detect temperature by measuring changes in gas pressure
B) They rely on smoke particles in the air to trigger an alarm
C) They use ionisation to detect changes in current flow

A) They detect temperature by measuring changes in gas pressure

How well did you know this?

Not at all

Perfectly

What is a dual-loop fire detection system designed to do?
A) Provide a single detection system for both fire and smoke
B) Use two complete systems for increased reliability
C) Automatically extinguish fires in flight

B) Use two complete systems for increased reliability

How well did you know this?

Not at all

Perfectly

Which of the following is true regarding the maintenance of fire detection systems in aircraft?
A) The systems only require minimal inspection
B) Sensing elements should be inspected for damage, abrasions, and loose materials
C) Fire detection systems do not require any maintenance

B) Sensing elements should be inspected for damage, abrasions, and loose materials

How well did you know this?

Not at all

Perfectly

What can cause intermittent fire alarms in an aircraft fire detection system?
A) Low battery power
B) Kinks or sharp bends in the sensing element
C) Excessive heat from the engine

B) Kinks or sharp bends in the sensing element

How well did you know this?

Not at all

Perfectly

What type of smoke detection system is commonly used in aircraft cargo and baggage compartments?
A) Ionisation type smoke detectors
B) Photoelectric smoke detectors
C) Pneumatic smoke detectors

B) Photoelectric smoke detectors

How well did you know this?

Not at all

Perfectly

How does an ionisation type smoke detector work?
A) It uses light refraction to detect smoke particles
B) It detects changes in the ionisation of gases caused by smoke
C) It measures changes in temperature caused by fire

B) It detects changes in the ionisation of gases caused by smoke

How well did you know this?

Not at all

Perfectly

What is a feature of a lavatory smoke detector in aircraft?
A) It monitors only temperature changes
B) It triggers an alarm if smoke is detected in the lavatory
C) It automatically extinguishes any detected fire

B) It triggers an alarm if smoke is detected in the lavatory

How well did you know this?

Not at all

Perfectly

What is the purpose of water separators in cargo smoke detection systems?
A) To prevent condensation from interfering with air flow
B) To extinguish any fires in the cargo area
C) To increase the temperature of the air before detection

A) To prevent condensation from interfering with air flow

How well did you know this?

Not at all

Perfectly

In a lavatory smoke detection system, what happens when smoke is detected?
A) The smoke detector system activates a fire suppression system
B) The warning light turns on and an audible alarm sounds
C) The system resets automatically and stops any alarm

B) The warning light turns on and an audible alarm sounds

How well did you know this?

Not at all

Perfectly

What happens to a pneumatic continuous-loop fire detection system after a fire has been extinguished?
A) It must be manually reset by the crew
B) It automatically returns to standby mode
C) It continues to send a fire alarm until maintenance is done

C) It continues to send a fire alarm until maintenance is done

How well did you know this?

Not at all

Perfectly

How does the cargo smoke detection system determine the presence of smoke?
A) By measuring changes in light intensity between a LED source and photodiodes
B) By detecting temperature changes caused by smoke
C) By monitoring the gas levels in the cargo compartment

A) By measuring changes in light intensity between a LED source and photodiodes

How well did you know this?

Not at all

Perfectly

Which areas of an aircraft are equipped with fixed fire detection and fire extinguishing systems?
A) Engines, APU, Baggage and Cargo compartments, Lavatories
B) Cockpit, Wings, Cargo compartments, Lavatories
C) Engines, APU, Passenger cabins, Cargo compartments

A) Engines, APU, Baggage and Cargo compartments, Lavatories

How well did you know this?

Not at all

Perfectly

What must a fire detection system be capable of?
A) Automatically extinguishing fires
B) Providing rapid detection of fire or overheat conditions, but not automatically activating fire extinguishers
C) Sending an automatic signal to ground personnel for emergency response

B) Providing rapid detection of fire or overheat conditions, but not automatically activating fire extinguishers

How well did you know this?

Not at all

Perfectly

What is the most commonly used extinguishing agent in aircraft fire systems?
A) Water
B) CO2
C) Halon 1301

C) Halon 1301

How well did you know this?

Not at all

Perfectly

What happens after 28 November 2024 regarding Halon 1301 in aircraft fire systems?
A) Halon 1301 will still be used in new aircraft models
B) Halon 1301 must be replaced with another suitable extinguishant for cargo compartments
C) Halon 1301 will be used exclusively in the APU systems

C) Halon 1301 will be used exclusively in the APU systems

How well did you know this?

Not at all

Perfectly

What is the typical material used for manufacturing fire extinguisher bottles? A) Aluminum B) Stainless Steel C) Plastic

B) Stainless Steel

Which of the following is a component in the discharge valve assembly of a fire extinguisher bottle? A) Battery B) Cartridge (Squib) and Frangible Disk C) Air compressor

B) Cartridge (Squib) and Frangible Disk

What is the function of a two-way check valve in a fire extinguisher system? A) To prevent the extinguisher agent from backing up into a previously emptied bottle B) To allow fire extinguisher agent to flow freely between two bottles C) To monitor the temperature of the extinguisher bottle

A) To prevent the extinguisher agent from backing up into a previously emptied bottle

Which type of fire extinguisher discharge indicator ejects a red disk to indicate when the bottle contents are released due to excessive heat? A) Yellow discharge indicator B) Thermal discharge indicator C) Cargo fire indicator

B) Thermal discharge indicator

In the event of an engine fire, what must be done before discharging the fire extinguisher agent? A) The engine must be shut down and isolated from all supplies B) The aircraft must be grounded C) A manual override is required

A) The engine must be shut down and isolated from all supplies

What is typically required in the operation of an engine fire extinguisher system after a fire warning? A) A fire handle needs to be pressed or turned B) The flight crew manually discharges the system C) The fire extinguisher system automatically activates without crew input

A) A fire handle needs to be pressed or turned

What triggers the discharge of an APU fire extinguisher? A) Manual crew activation during flight B) Automatic shut down of the APU in the event of fire or other failures C) A push button activated by the flight crew during routine operations

B) Automatic shut down of the APU in the event of fire or other failures

What is checked during scheduled maintenance of fire extinguisher systems? A) Only the weight of the fire extinguisher bottles B) Inspection and servicing of bottles, testing for leakage, and electrical continuity checks C) Only the weight and pressure of the extinguisher bottles

B) Inspection and servicing of bottles, testing for leakage, and electrical continuity checks

What is the recommended service life for a fire extinguisher discharge cartridge (squib)? A) 1 to 3 years B) 5 to 10 years C) 20 to 25 years

B) 5 to 10 years

What is the purpose of using RADHAZ filters with fire extinguisher cartridges (squibs)? A) To prevent damage from high intensity radiated fields (HIRF) B) To allow the cartridges to be reused C) To increase the pressure inside the fire extinguisher bottle

A) To prevent damage from high intensity radiated fields (HIRF)

What is the fire extinguisher system in the lavatory designed to extinguish? A) Fires in the passenger cabin B) Fires in the waste compartment bin C) Engine fires

B) Fires in the waste compartment bin

What happens when the temperature in a lavatory waste compartment reaches approximately 170 ˚F (76 ˚C)? A) The fire extinguisher bottle discharges automatically B) The solder that seals the nozzles melts, releasing the fire extinguishing agent C) The waste compartment is automatically ventilated

B) The solder that seals the nozzles melts, releasing the fire extinguishing agent

What must be replaced in the lavatory fire extinguisher system if the temperature indicator strip changes from grey to black? A) The entire fire extinguisher system B) The temperature indicator strip and fire bottle C) The fire bottle only

B) The temperature indicator strip and fire bottle

What is required when installing fire extinguisher pipes or tubing? A) They must be checked for freedom from obstruction, corrosion, and damage B) Only the external surface needs to be inspected C) The pipes must be covered with a protective coating

A) They must be checked for freedom from obstruction, corrosion, and damage

What is the purpose of flow control valves in a cargo fire extinguisher system? A) To ensure uniform distribution of the extinguishing agent B) To control the pressure within the bottles C) To direct the extinguishing agent to the selected cargo compartment

C) To direct the extinguishing agent to the selected cargo compartment

What must occur before a fire extinguisher bottle can be installed on an aircraft? A) The bottle must be completely filled with extinguishing agent B) The squib must be assembled correctly into the discharge valve C) The fire extinguisher bottle must undergo a full testing procedure

B) The squib must be assembled correctly into the discharge valve

How often must the fire extinguishing systems be tested on an aircraft? A) Only once during each pre-flight check B) Every time an APU or engine is started and at least twice daily during pre and post-flight C) Once a month

B) Every time an APU or engine is started and at least twice daily during pre and post-flight

What is the purpose of the 'Master Test Warn' switch in the aircraft fire detection system? A) To initiate the engine start-up procedure B) To test the fire detection and extinguishing systems C) To reset the fire extinguisher systems after use

B) To test the fire detection and extinguishing systems

What happens when the 'TEST WARN' switch is activated on the fire detection test panel? A) It triggers the APU shutdown sequence B) It tests the fire sensing loops, causing relevant warnings and lights to activate C) It tests only the lavatory smoke detection system

B) It tests the fire sensing loops, causing relevant warnings and lights to activate

Which of the following is indicated when a 'FAIL' condition is selected on the 'Master Test Warn' switch? A) The system is functioning correctly B) A fault in the fire detection loops is simulated, and amber warning messages are posted C) The fire extinguisher system is manually activated

B) A fault in the fire detection loops is simulated, and amber warning messages are posted

What does the test of the cargo smoke detection system typically involve? A) Testing only the fire extinguisher bottles B) Sequential self-test of smoke detectors, with corresponding warning messages and lights C) Initiating the discharge of fire extinguishing agents

B) Sequential self-test of smoke detectors, with corresponding warning messages and lights

What does the APU test involve? A) A continuous repetitive chime, MASTER WARNING lights flashing, and APU FIRE warning on the ECAM B) Testing only the fire extinguisher bottles for the APU C) Automatically shutting down the APU

A) A continuous repetitive chime, MASTER WARNING lights flashing, and APU FIRE warning on the ECAM

Which statement is true regarding the APU fire test when the aircraft is on the ground and powered by batteries only? A) The APU will automatically shut down after the test B) The red APU FIRE light will fully illuminate and trigger a shutdown C) The APU will not auto shut down, and the APU FIRE PBA light partially illuminates

C) The APU will not auto shut down, and the APU FIRE PBA light partially illuminates

How is the lavatory fire extinguisher bottle tested? A) By manually pressing a test button on the bottle B) Through automatic discharge when the temperature exceeds 77˚C C) By visually inspecting the bottle and checking its weight

B) Through automatic discharge when the temperature exceeds 77˚C

What happens if a lavatory fire extinguisher bottle discharges? A) The system sends a visual and aural warning, and the flight crew must immediately replace the bottle B) The fire bottle will automatically be refilled C) The system sends a red ‘LAV FIRE’ message and a triple chime warning

C) The system sends a red ‘LAV FIRE’ message and a triple chime warning

What does the built-in test equipment (BITE) in some lavatory smoke detectors do? A) Automatically discharges the fire extinguisher B) Posts messages on the EICAS if smoke or a system fault is detected C) Activates a visual fire warning light when smoke is detected

B) Posts messages on the EICAS if smoke or a system fault is detected

Which of the following describes the 'CARGO BOTTLE' test? A) It tests the cargo fire extinguishing system by activating the discharge B) It tests the smoke detection system in the cargo bay and activates relevant warning lights and messages C) It tests only the cargo fire bottle discharge valve

B) It tests the smoke detection system in the cargo bay and activates relevant warning lights and messages

What occurs during the lavatory smoke detection test? A) The aircraft will initiate a fire extinguishing discharge B) An aural warning and an amber ‘SMOKE TOILET’ caution message appear on the flight deck C) A red fire light appears in the lavatory

B) An aural warning and an amber ‘SMOKE TOILET’ caution message appear on the flight deck

Which component of the fire extinguisher system is involved in a test to verify the squib circuit? A) Fire extinguisher bottle B) Smoke detectors C) Squib

C) Squib

What is the role of the 'TEST' buttons located on the fire detection panels of aircraft? A) To manually activate the fire extinguisher bottles B) To initiate a fire warning sequence to test the fire detection system C) To switch off the fire warning indicators in case of malfunction

B) To initiate a fire warning sequence to test the fire detection system

What does the 'FAIL' test mode for the engine fire system simulate? A) A malfunction in the fire extinguisher bottle B) A fault in the fire detection loops C) An overheat condition in the engine

B) A fault in the fire detection loops

Where must a handheld fire extinguisher be located in the flight deck compartment? A) Near the passenger cabin door B) In the overhead baggage compartment C) Within easy access to the flight crew while seated

C) Within easy access to the flight crew while seated

An aircraft with more than six and fewer than 30 passengers must have how many portable extinguishers in the passenger compartment? A) One B) Two C) None

A) One

What is the required number of extinguishers for an aircraft with a seating configuration of 61 to 200? A) 2 B) 3 C) 4

B) 3

What must be done when two or more extinguishers are required in the passenger cabin? A) Place them in the cockpit B) Distribute them evenly C) Store them in the cargo hold

B) Distribute them evenly

What type of fire agent has been used on commercial aircraft for over 45 years? A) CO2 B) Water C) Halons

C) Halons

Why is halon still permitted in aviation? A) It’s cheap and easily available B) Aviation has unique operational and fire safety requirements C) It’s the only agent that can be used in cold temperatures

B) Aviation has unique operational and fire safety requirements

What type of agent is Halon 1301? A) Streaming agent B) Wetting agent C) Total flooding agent

C) Total flooding agent

What type of discharge does Halon 1211 produce? A) Gas discharge B) Liquid stream C) Powder spray

B) Liquid stream

What fire classes can halons extinguish? A) A and D B) B and D C) A, B, and C

C) A, B, and C

Why should halons not be used on Class D fires? A) They are not effective on electrical fires B) They react vigorously with burning metals like magnesium C) They produce excessive smoke

B) They react vigorously with burning metals like magnesium

Which of the following is a halon replacement agent? A) Carbon dioxide B) HCFC Blend B C) Water

B) HCFC Blend B

What is carbon dioxide (CO2) primarily used for in aviation? A) Cabin fires B) Fire training C) Exterior aircraft fires like engine and APU fires

C) Exterior aircraft fires like engine and APU fires

How does CO2 extinguish a fire? A) It cools the fire directly B) It adds humidity to the air C) It reduces oxygen content and displaces air

C) It reduces oxygen content and displaces air

What is a risk when using CO2 extinguishers in confined spaces? A) Fire re-ignition B) Oxygen depletion leading to asphyxiation C) Overheating of the extinguisher

B) Oxygen depletion leading to asphyxiation

What classes of fire can be controlled with dry powder extinguishers? A) Class A only B) Class D only C) Class A, B, or C

C) Class A, B, or C

Why is the use of dry powder extinguishers limited in aviation? A) They are expensive B) They leave a residue and require cleanup C) They are not effective on electrical fires

B) They leave a residue and require cleanup

What type of fire is best controlled with water? A) Class B B) Class C C) Class A

C) Class A

Which of the following is suitable for extinguishing electrical and flammable liquid fires in the cabin or flight deck? A) Water extinguisher B) Halon extinguisher C) CO2 extinguisher

B) Halon extinguisher

Which extinguisher types are unsuitable for use in the cabin or flight deck? A) Halon B) Water C) Carbon dioxide and dry chemicals

C) Carbon dioxide and dry chemicals

What defines aircraft cargo compartments? A) Number of extinguishers B) Material of construction C) In-flight accessibility, presence of detectors and extinguishing systems

C) In-flight accessibility, presence of detectors and extinguishing systems

What is true of Class A cargo compartments? A) They are inaccessible during flight B) They have built-in extinguishing systems C) They allow visual detection of smoke and are accessible in flight

C) They allow visual detection of smoke and are accessible in flight

What is a feature of Class B cargo compartments? A) They do not allow in-flight access B) They are equipped with a fireproof door C) Crewmembers can reach all parts with a portable extinguisher

C) Crewmembers can reach all parts with a portable extinguisher

Which type of compartment includes a built-in extinguishing system controlled by the flight crew? A) Class A B) Class C C) Class B

B) Class C

Why was Class D eliminated from aviation use? A) Too costly to maintain B) Could not support ventilation C) FAA required conversion to Class C or E

C) FAA required conversion to Class C or E

What is a requirement for Class E compartments? A) Must allow passengers B) Must have emergency exits for crew accessible under all loading conditions C) Must be located below the passenger cabin

B) Must have emergency exits for crew accessible under all loading conditions