Escalafon 2025

Where are the air conditioning packs located within the Single Aisle family aircraft?. Aft cabin. Cockpit. Wing root area. Landing gear bay.

What is the purpose of the pack Flow Control Valve (FCV)?. Manage cabin pressure. Control avionics equipment. Adjust flow rate through the pack. Shut-off cabin fans.

How does the ACSC regulate the pack outlet temperature?. Adjusts avionics valves. Modulates BYPASS VALVE and RAM-AIR INLET. Controls cockpit pressurization. Manages cargo compartment ventilation.

What is the role of cabin recirculation fans?. Control avionics temperature. Facilitate cargo heating. Supply cold air to the cabin. Reduce bleed air demand and save fuel.

How is the temperature regulation system for cabin zones controlled and monitored?. Avionics Equipment Ventilation Computer. Cargo Heating Controller. ACSC. RPCU.

The primary function of the air conditioning system is to maintain the correct ________ and temperature within the pressurized compartments of the fuselage. sound. pressure. color. speed.

Within the Single Aisle family, the air conditioning packs are located in the ________ area, forward of the landing gear bay. cockpit. wing root. cargo compartment. avionics.

The main component of each pack assembly in the air conditioning system is the ________ machine. temperature. pressure. avionics. air cycle.

Hot air is supplied to the pack through the pack Flow Control Valve (FCV) from the ________ system. electrical. pneumatic. hydraulic. fuel.

The ACSC controls the pack outlet temperature by modulating the BYPASS VALVE and the ________ doors. cockpit. cargo compartment. avionics. RAM-AIR Inlet.

What does FCU stand for in the context of the text?. Flight Control Unit. Flow Control Unit. Fuel Control Unit. Function Control Unit.

Which component of the FCU is responsible for managing the ON/OFF function of the FCV?. Torque Motor. Solenoid 1. Position Sensor. Pressure Sensor.

In which scenarios is the trim air PRV solenoid de-energized?. When duct temperature exceeds 88°C. When system pressure exceeds 6.5 psi. When HOT AIR P/B is set to OFF. During take-off and landing.

How is ventilation air supplied to lavatories and galleys?. From external sources only. From cabin distribution ducts. Through the cockpit. From avionics equipment.

In the open circuit configuration, under what conditions is avionics equipment cooled with ambient air?. While in-flight. When the skin temperature is decreasing. On the ground with increasing skin temperature. On the ground with skin temperature below 12°C.

What does the Cargo Heating Controller regulate?. Ventilation air distribution. Cabin ambient temperature. Cargo compartment temperature. Extraction fan operation.

What does the AFT ISOL VALVE P/B control?. Cargo ventilation controller. Extraction fan in the cockpit. Isolation valves and extraction fan. Cargo heating controller.

What action does the HOT AIR P/B switch take when set to OFF?. It opens the isolation valves. It regulates the trim air valves. It starts the extraction fan. It closes the pressure regulating valve.

What controls the operation of the avionics equipment ventilation system?. Crew intervention. Skin temperature. Aircraft configuration. Avionics Equipment Ventilation Computer (AEVC).

Which configuration allows cooling of avionics equipment using ambient air?. Open Circuit Configuration. Closed Circuit Configuration. Partially Open Circuit Configuration. No configuration allows cooling using ambient air.

What does the skin exchanger outlet bypass valve help reduce?. Avionics bay noise. Skin temperature. Ambient air. Duct temperature.

What determines the FCV position in the main operating mode?. Flow setting on panel 30VU. Differential pressure. Torque motor position. Main operation switch.

In which aircraft conditions is the HIGH FLOW configuration used?. Take-off and landing. Single pack operation. APU bleed air supply for pack operation. Cruise altitude.

What happens if an FCU component malfunctions?. ACSC energizes Solenoid 2, pack enters BACK-UP mode. FCV opens fully. FCU switches to MAIN mode. ACSC energizes Solenoid 1.

What does the Mixer Unit do?. Mixes cabin air with conditioned air from packs. Distributes bleed air to the cabin. Filters recirculated air. Controls differential pressure.

Which ACSC manages the forward and aft cabin zones?. ACSC 1. ACSC 2. Both ACSCs equally. FCU.

What is the main purpose of the Automatic Flight System (AFS)?. Increase aircraft speed. Reduce pilot workload and enhance safety. Minimize fuel consumption. Control in-flight entertainment.

Which of the following is a fundamental component of the AFS?. Autopilot. SFCC. Ailerons. Multipurpose Control and Display Unit (MCDU).

What is the primary function of the MCDUs?. Short-term aircraft control. Engine control. Ground navigation control. Long-term interface between the crew and FMGCs.

What does the FCU stand for?. Flight Crew Unit. Fuel Control Unit. Flight Control Unit. Fast Communication Unit.

How many Flight Augmentation Computers (FACs) are there in the AFS?. 1. 2. 3. 4.

What is the purpose of the FAC engagement P/BSWs?. Engine control. Rudder control. Landing gear control. Airspeed control.

What part of the AFS is used for the short-term control of the aircraft?. FCU. MCDUs. FMGCs. FACs.

How many parts does each FMGC consist of?. 1. 2. 3. 4.

What functions are primarily managed by the Flight Management (FM) part of the FMGC?. Rudder control. Engine maintenance. Flight plan definition and monitoring. In-flight entertainment.

What is the primary role of the Fault Isolation and Detection System (FIDS)?. Long-term flight planning. Short-term aircraft control. Maintenance failure information centralization. Passenger entertainment.

Which display primarily shows guidance commands and flight mode status?. ND. FCU. PFDs. MCDUs.

What is the purpose of the ECAM/EWD page?. Display flight plan information. Show passenger announcements. Present warning messages and computer failures. Control engine thrust.

What function is responsible for calculating optimized speed for guidance purposes?. FCU. FIDS. FAC. FMGC.

What components is the AFS designed around?. FMGC and FCU. MCDUs and FACs. Wings and engines. Radar and altimeter.

What role do the MCDUs play in aircraft control?. Short-term control of the aircraft. Long-term interface between crew and FMGCs. Engine management. Landing gear control.

Which part of the AFS serves as the interface for transmitting engine data to FADEC?. FCU. MCDUs. FMGCs. FACs.

What are the primary functions of the Flight Augmentation Computer (FAC)?. Rudder control and flight envelope protection. Engine maintenance. Passenger comfort control. Airspeed management.

Which system centralizes failure information for maintenance purposes?. FMGC. FIDS. FCU. FMGS.

What is the main function of the Fault Isolation and Detection System (FIDS) in the Flight Augmentation Computer (FAC) 1?. To engage the Auto Flight System (AFS). To control rudder during landing. To detect lateral mode failures. To concentrate maintenance information.

What is the type of communication the Auto Flight System (AFS) maintains with the Centralized Fault Display Interface Unit (CFDIU)?. One-way communication. Two-way communication. One-way communication with sensors. Two-way communication with FACs.

The Auto Flight System (AFS) maintains a ____________ communication with the Centralized Fault Display Interface Unit (CFDIU). one-way. two-way. direct. complex.

The Autothrust (A/THR) function is engaged automatically when the aircraft's ____________ is detected, inhibiting it below 100 feet RA, except during the 15 seconds after lift-off. speed decreases. altitude increases. alpha-floor is detected. AP is engaged.

In cruise, which controls execute the orders of lateral modes, while the elevators and THS execute the orders of vertical modes? The ____________. ailerons and rudder. rudder and nose wheel. ailerons and spoilers. elevators and THS.

The engagement status of the Flight Director (FD) is displayed on the ____________ on the Flight Control Unit (FCU). FCU P/BSW. AP P/BSW. FAC P/BSW. A/THR P/BSW.

The Auto Flight System (AFS) can engage the AP in flight if the aircraft has been airborne for at least ____________ seconds. 2. 5. 10. 15.

When the AP is engaged, the load thresholds on the rudder pedals and the ____________ are increased, and if overridden, the AP disengages. side sticks. throttles. spoilers. ailerons.

The Flight Director (FD) automatically engages when the system is electrically supplied and logic conditions are met, and the engagement is indicated by the FD P/BSW ____________. blinking. red bars. green bars. white bars.

The Autothrust (A/THR) function sends computed thrust commands to the Full Authority Digital Engine Control (FADEC) for ____________ engine control. manual. automatic. remote. partial.

During take-off, the AP can be engaged in flight after the aircraft has been airborne for at least ____________ seconds. 2. 5. 10. 15.

The primary goal of the Automatic Flight System (AFS) is to enhance flight safety by reducing pilot workload and providing functions that improve ________. flight entertainment. fuel efficiency. flight consistency. passenger comfort.

The AFS is designed around various components, including 2 Flight Management and Guidance Computers (FMGCs), 2 Flight Augmentation Computers (FACs), 2 Multipurpose Control and Display Units (MCDUs), and ________. 1 Radar Control Unit (RCU). 1 Navigation Control Unit (NCU). 1 Flight Control Unit (FCU). 1 Avionics Control Unit (ACU).

The FCU and MCDUs play a crucial role in allowing pilots to control the functions of the ________. Aircraft Fuel Management System (AFMS). Flight Data Monitoring System (FDMS). Flight Management and Guidance Computers (FMGCs). Flight Analysis and Reporting System (FARS).

One of the primary functions of the Flight Augmentation Computers (FACs) is to control ________. cabin lighting. engine thrust. wing flaps. rudder and flight envelope protection.

The Fault Isolation and Detection System (FIDS) is active only in ________. FAC 1. FAC 2. FMGC 1. FMGC 2.

The yaw damper, operated by yaw damper actuators, performs several functions, including dutch roll damping, turn coordination in cruise, and compensation for ________. cabin pressure fluctuations. loss of radio communication. engine failure during auto flight. turbulence.

Rudder trim orders can originate from the Rudder Trim selector or the ________ to control the rudder. Air Data/Inertial Reference System (ADIRS). Navigation Control Unit (NCU). Flight Management and Guidance Computer (FMGC). Aircraft Fuel Management System (AFMS).

What are the two sub-systems of the communications system?. Radio communication and on-board communication. Ground communication and air communication. Internal communication and external communication. Cockpit communication and cabin communication.

What is the purpose of communication during taxiing and towing on the Single Aisle aircraft?. To interact with the service personnel. To establish contact with the tower. To ensure proper passenger announcements. To ensure proper passenger announcements.

What must be done to enable transmission mode for the acoustic devices (microphone)?. Press the reception key. Push the ON/OFF switch. Select the related transmission key. Activate the standby frequency.

What is the purpose of the Service Interphone system in terms of maintenance coordination?. To facilitate communication between flight crewmembers. To connect to the tower for takeoff clearance. To enable communication between flight crew and mechanic. To communicate with passengers during boarding.

How are audio lines from various jacks routed to the Audio Management Unit (AMU)?. Through the Cabin Intercommunication System. Through the Audio Control Panel. Through the Radio Management Panel. Through the amplifiers in the CIDS Directors.

When is the automatic mode of the Service Interphone system active?. During flight operations. On the ground with the landing gear up. During engine start. On the ground with gear down and compressed.

How is the Service Interphone system re-enabled after jacking the aircraft?. Switching the ACP ON/OFF switch. Pushing the INT pushbutton. Adjusting the interphone audio level. Switching the Service Interphone Override switch to ON.

The use of the radio system on the Single Aisle aircraft is extremely important for the safe operation of the _______________. flight crew. aircraft. tower communication. ground handling.

To re-enable the service interphone, the SerViCE INTerphone OVeRriDe P/BSW must be switched to _______________. OFF. ACTIVE. ON. ENABLE.

The primary function of the Aircraft Identification Module (AIM) is to program the __________ message in the ELT. Military. Aircraft identification. Weather. Maintenance.

The ON-ARMED-TEST/RESET switch on the RCP can be set to the TEST/RESET position to initiate an ELT __________. Transmission. BITE test. Emergency announcement. Battery recharge.

The ELT operates automatically or manually, and its battery pack supplies power for approximately __________ hours. Twenty. Fifty. Ten. One hundred.

The Flight Interphone system is mainly used for __________ communication within the cockpit and with ground mechanics. Satellite. External. Passenger. Internal.

The ELT BITE test is performed to verify the proper operation of the ELT system and involves transmitting a(n) __________ signal. Emergency. Distress. Engine. Entertainment.

What is the purpose of the Cabin Assignment Module (CAM)?. Control passenger seating assignments. Manage interphone communications. Store cabin zone information. Operate oxygen mask systems.

How does the conference mode work for interphone communication?. It connects all cabin stations to the cockpit. It allows communication between two interphone sources. It activates priority messages in the cabin. It broadcasts chime sounds.

What is the priority of an emergency call in the communication system?. Priority 1. Priority 2. Priority 3. Priority 4.

What happens when an emergency call is initiated from the cockpit?. All cabin stations connect to the cockpit. The cockpit connects to all cabin stations. The cabin stations connect to each other. All PA loudspeakers are activated.

How does the cabin initiate interphone communication?. By using the Audio Control Panel (ACP). By selecting pushbuttons on the CALLS panel. By lifting the cockpit handset. By activating the oxygen masks.

What is the purpose of the RESET key in the cabin ATTND stations?. Resets the interphone function. Initiates an emergency call. Initiates a PA announcement. Resets the system power.

How are calls from the cockpit initiated using the CALLS panel?. By using the CABin key and knob. By using the ACP pushbuttons. By using the ATT key on the AIP. By using the PA ALL key.

The upper row of the AIP display is used for the indication of information concerning the cabin and flight crew interphone system. The outer left section is used to show the __________ information. handset. interphone. system. status.

To select an announcement using the handmic, the Passenger Address (PA) transmission key located on the Audio Control Panel (ACP) must be pressed and held. It comes on green and __________ the microphone audio to the PA system. connects. disconnects. transmits. blocks.

To make an announcement using the boomset or the oxygen mask, the PA transmission key must be pressed and held on the ACP. It comes on green. The handmic has also the __________ priority. same. higher. lower. equal.

A handset is mounted on the cockpit center pedestal and contains a PTT SW. Pressing on the PTT SW keys the PA system, __________ lower priority PA sources and broadcasting the speech over all PA loudspeakers and PAX headsets. overriding. avoiding. enhancing. silencing.

The conference mode is used for the communication between __________ interphone sources. two. more than two. all. specific.

How is speech communication established from the cockpit using the SVCE INT jacks?. Pressing the CABin key. Using the Audio Control Panel (ACP). Pressing the SVCE INT OVRD pushbutton. Using the Audio Management Unit (AMU).

What indication is displayed on Attendant Indication Panels (AIPs) when cabin stations initiate communication using the SVCE INT jacks?. "SERV INT". "CABIN CALL". "CABIN COMM". "SERV COMM".

Which component digitizes audio signals from cabin stations and transmits them to the directors?. DEUs. AMU. LGCIUs. ACP.

How is the BTC power supply provided when APU GEN or EXT PWR are available?. Through the Battery Bus. Through the GAPCU. Through the APU GEN. Through the IDG.

Why is the BTC ground path provided by the related Generator Control Unit (GCU)?. To enable automatic transfer to network faults. To inhibit the BTC close logic. To protect against Over Current. To control battery power.

In which situation are both BTCs closed?. APU GEN only. GEN 2 only. EXT PWR only. APU GEN and EXT PWR.

The BTC power supply is provided by the Ground and Auxiliary Power Control Unit (GAPCU) when _____ are available. APU GEN. battery power. external power. IDG 1.

With only EXT PWR on, both BTCs should be closed to supply _____. AC BUS 1. AC BUS 2. AC BUS 1+2. IDG 1.

With IDG 2 only operation, both BTCs should be closed. IDG 2 supplies its own busbar and via the closed BTCs also _____. AC BUS 1. AC BUS 2. AC BUS 1+2. battery power.

APU GEN is one of the power sources with the lowest priority to supply the AC BUSES. True. False.

When APU GEN is the only power source, BTC 1 and 2 close to supply the AC power network. True. False.

With only EXT PWR on, both BTCs should be open to avoid parallel operation with the generators. True. False.