A320 Fire Protection

When there is a fire in the APU compartment, ground personnel are alerted through the external fire warning horn which will sound, and the APU red fire light will illuminate. This indicates that there is a fire and immediate action needs to be taken to address the situation. The presence of flames alone is not sufficient to alert ground personnel, hence the correct answer is that the external fire warning horn will sound and the APU red fire light will illuminate.

When the aircraft is on the ground and the APU is started on battery power only, fire protection is available. In this situation, if a fire is detected, the APU will automatically shut down and discharge the extinguishing agent to suppress the fire. This ensures the safety of the aircraft and its occupants in case of a fire emergency.

When avionics smoke is detected, the correct procedure is to turn off the GEN 1 LINE push button and deploy the RAT (Ram Air Turbine). Additionally, Generator 2 has been removed from the system. These actions indicate that the aircraft is in the Emergency Electrical Configuration, where power is being supplied by the RAT and the remaining generator. Therefore, the statement "The aircraft will be in the Emergency Electrical Configuration" is true.

When a lavatory smoke detector detects smoke, warnings will be generated in both the cockpit and the cabin. This is because it is crucial for both the flight crew in the cockpit and the passengers in the cabin to be alerted to the presence of smoke. The warnings in the cockpit allow the flight crew to take immediate action and address the situation, while the warnings in the cabin inform the passengers and ensure their safety.

The explanation for the given correct answer is that each engine has two fire extinguishers. This means that there are two halon fire extinguishing cylinders per engine.

The guarded red ENG FIRE push button light will extinguish only after the fire warning no longer exists. This means that the light will remain on as long as there is a fire detected in the engine. Once the fire is extinguished or the fire warning is resolved, the light will turn off.

There is only one fire extinguishing bottle available for fighting an APU fire.

When an aft cargo compartment smoke detector detects smoke, it will trigger a MASTER WARN, CRC (Crew Rest Compartment) warning, and an ECAM (Electronic Centralized Aircraft Monitor) message. This combination of warnings and messages ensures that the flight crew is immediately alerted to the presence of smoke in the cargo compartment, allowing them to take appropriate action to address the situation and ensure the safety of the aircraft and its occupants.

The correct answer is "For as long as the fire warning is present." This means that the red APU FIRE pb on the overhead will remain illuminated as long as there is a fire warning. Once the fire warning is no longer present, the illumination will cease.

When the GEN 1 LINE SMOKE light and MASTER CAUT light are illuminated, it indicates that there is a fault with the blower and extract push buttons. Therefore, both the BLOWER and EXTRACT push button FAULT lights will be illuminated.

The correct answer is "The crew must depress the appropriate DISCH switch." This means that if the aft cargo compartment smoke detector detects smoke, the crew is responsible for manually activating the extinguishing system by pressing the appropriate DISCH switch. This action is necessary as automatic extinguishing is not available in this situation.

The correct answer is "Smoke has been detected in the avionics compartment ventilation duct." This means that the smoke detection system has detected smoke specifically in the ventilation duct of the avionics compartment. This information is important for the safety of the aircraft as it indicates a potential fire or smoke-related issue in the avionics compartment.

The correct answer is "A smoke detector and smoke detection control unit." This is because the avionics smoke detection system typically includes a smoke detector to detect the presence of smoke and a smoke detection control unit to monitor and control the smoke detection system. The other options mentioned additional components such as a heat detector and a halon cylinder, which may or may not be part of the avionics smoke detection system.

The correct answer is APU and lavatory waste bins. This means that only the APU (Auxiliary Power Unit) and the lavatory waste bins have automatic fire extinguishing systems. The other options mention additional areas such as avionics bay and cargo compartments, but these are not included in the correct answer.

The correct answer suggests that if the red APU thermal plug is missing during an exterior preflight, it indicates that an APU fire agent thermal discharge has occurred. This means that the APU fire extinguishing system has been activated and discharged its fire agent, indicating a potential fire or overheating issue with the APU.

The APU provides for automatic fire extinguishing on the ground. This means that when the aircraft is on the ground, the APU (Auxiliary Power Unit) has the capability to automatically extinguish any fires that may occur. This is an important safety feature as it helps to prevent the spread of fire and minimize damage to the aircraft and its surroundings.

The engine nacelle and pylon area is equipped with two fire detection loops. This means that there are two separate systems in place to detect any potential fires in this area. Having two loops increases the reliability and accuracy of the fire detection system, as it allows for redundancy in case one loop fails or malfunctions. With two fire detection loops, any fire or potential fire can be quickly detected and appropriate measures can be taken to prevent further damage or danger.

While on battery power, only the red APU FIRE and AGENT/DISC push button will illuminate. This indicates that the APU fire test can still be performed even when the aircraft is not connected to external power. However, when all busses are powered, additional warning lights and indicators may illuminate to indicate the status of the APU fire protection system.

The correct answer is "Only after the fire warning no longer exists." This means that the pedestal mounted red FIRE annunciator light will only extinguish when the fire warning is no longer present. This indicates that the fire has been successfully extinguished or the system has determined that there is no longer a fire hazard. The other options, such as pushing the red MASTER WARN push button or selecting the adjacent ENG MASTER switch to off, may alert the crew to the fire but will not directly cause the FIRE annunciator light to extinguish.

The correct answer is two parallel fire detection loops. This means that there are two separate systems in place to detect fires in the APU compartment. Having two parallel loops increases the reliability and accuracy of fire detection, as it allows for redundancy in case one loop fails or gives false alarms. This ensures that any potential fire in the APU compartment can be detected promptly and appropriate actions can be taken to prevent further damage or accidents.

The chime will continue to sound until the crew pushes the red MASTER WARN push button or pushes and releases the guarded red APU FIRE push button. Both actions are required to stop the chime.

Each lavatory is equipped with one smoke detector and 4 lavatory waste bins, as well as an automatically discharging fire extinguisher. This means that there is only one smoke detector in each lavatory, along with the waste bins and the fire extinguisher.

The correct answer is "Four smoke detectors and two channel smoke detection control unit." This means that the aft cargo compartment smoke detection system includes four smoke detectors and two channel smoke detection control units. These components work together to detect and control smoke in the cargo compartment, ensuring the safety of the aircraft.

After depressing the CARGO SMOKE TEST push button once, a satisfactory test of the aft cargo compartment smoke detector consists of two complete cycles with associated warnings. This means that the smoke detector system should go through two full cycles, activating the associated warnings each time, in order to ensure that the test is successful. This is the correct answer because it accurately describes the required test procedure for the aft cargo compartment smoke detector.

The correct answer is E/WD red 1 (2) ENG FIRE warning, lower ECAM engine page, red FIRE push button and AGENT SQUIB/DISC. This is because the question is asking for what will be displayed in addition to the CRC and red MASTER WARNING light during a good fire test. The given answer includes the necessary components that would be displayed during a fire test, such as the ENG FIRE warning, lower ECAM engine page, red FIRE push button, and AGENT SQUIB/DISC lights.

The Airbus is equipped with a dedicated Cargo Smoke Detection and Fire Suppression System specifically designed for monitoring the cargo compartments for signs of smoke or fire. When smoke is detected, the system automatically triggers fire suppression measures, typically involving the release of fire extinguishing agents into the cargo compartment. The other systems mentioned are responsible for fire detection and suppression in other parts of the aircraft, such as the engines or APU (Auxiliary Power Unit).

The fire triangle is a simple model for understanding the elements necessary for most fires. It consists of three components: heat, fuel, and an oxidizing agent (usually oxygen). Smoke is a byproduct of fire, not a component required for it to start or continue.