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What is the composition of the ADIRS?. Three Air Data Inertial Reference Units (ADIRUs). two Air Data Reference (ADR) units. four Inertial Reference (IR) units. one Air Data Module (ADM).

How are ADIRUs interfaced with the Mode Selector Unit MSU?. via AOA, TAT, and ADM inputs. Via PFDs, NDs, and ECAM SD. via FACs, WXR system, and DDRMI. via Air Traffic Control (ATC) system and ISA.

What are the inputs for the ADM?. One pressure input and several discrete inputs. two pressure inputs and one discrete input. multiple pressure inputs only. single pressure input only.

What does the ADM output to the ADIRU?. ARINC bus with digital preessure information. analog signal with temperature data. gps coordinates and altitude information. radio Magnetic Indicator (RMI) data.

How are gyros and accelerometers attached in a strapdown IRS?. Solidly attached to the aircraft structure. attached to the wings of the aircraft. suspended freely within the aircraft. mounted on the cockpit dashboar.

What does the ring laser gyro measure?. Inertial rotation data. magnetic field strength. air temperature variations. gps signal strength.

How do ring laser gyros measure rotation?. By detecting differences in laser beam frequencies. by analyzing magnetic field variations. by measuring changes in air pressure. by tracking GPS satellite positions.

What is the primary output of the ring laser gyros?. Analog rotation information. digital altitude data. magnetic heading information. inertial velocity measurements.

What do the accelerometers in the ADIRUs provide?. Linear accelerations. barometric altitude data. air temperature variations. aircraft ground speed.

How is the acceleration signal processed in the ADIRUs?. Sent to an analog/digital converter. transmitted directly to the MMR units. converted into GPS coordinates. sent to the Weather Radar system.

How is the ILS descent axis determined?. By the intersection of a Localizer and Glide Slope beam. by GPS coordinates. by analyzing air pressure variations. by the aircraft's altitude.

What is the primary function of the ILS (Instrument Landing System)?. Supply signals transmitted by ground stations. provide GPS coordinates. measure atmospheric corrections. control air traffic in the vicinity of the airport.

How is a descent axis determined in the ILS?. By the intersection of a Localizer beam and Glide Slope beam. by GPS coordinates. by analyzing air pressure variations. by the aircraft's altitude.

What is the primary function of the ILS (Instrument Landing System)?. Supply signals transmitted by ground stations. provide GPS coordinates. measure atmospheric corrections. control air traffic in the vicinity of the airport.

How is a descent axis determined in the ILS?. By the intersection of a Localizer beam and Glide Slope beam. by analyzing the aircraft's altitude. by measuring magnetic field variations. by tracking GPS satellite positions.

What is the primary purpose of the GPS (Global Positioning System)?. Provide accurate navigation information. control air traffic. measure atmospheric pressure variations. transmit signals to ILS ground stations.

How is the GPS spatial segment composed in terms of satellite arrangement?. 24 Satellites in Six Separate Orbital Planes. 12 satellites in one orbital plane. 48 satellites in 12 orbital planes. 6 satellites in a single orbital plane.

Where are the Multi-mode Receivers (MMR) typically located on the aircraft?. In the forward avionics bay 90VU. in the cockpit dashboard. on the wings of the aircraft. in the upper fuselage near the GPS antennas.

What are the external sensors that provide inputs to the ADIRUs in the ADIRS system?. Angle Of Attack (AOA), Total Air Temperature (TAT), and Air Data Module (ADM). static Air Temperature (SAT), International Standard Atmosphere (ISA), and Total Air Temperature (TAT). static ports, Pitot probes, and AOA sensors. gps coordinates, ground speed, and altitude.

What are the primary components of the WXR and PWS system?. weather radar transceiver and weather antenna drive. aircraft engines and landing gear. avionics bay and ILS. Weather radar transmitter/receiver and dual weather radar control unit.

How is the weather radar image displayed on the navigation displays (NDs)?. independently on the CAPT ND only. independently on the F/O ND only. Independently on both CAPT and F/O NDs. not displayed on NDs.

What precautions must be taken before using the Weather Radar (WXR) system on the ground in specific modes?. ensure the aircraft is refueled within 100 m. maintain a 1.5 m clearance from the antenna. Avoid metallic obstacles within 5 m arc of ± 90º. operate the system in any weather conditions.

Why should the WINDSHEAR AUTO/OFF selector switch be selected OFF when not in use?. To conserve power. To avoid nuisance aural alerts. to improve ground surveillance. to enhance weather radar performance.

The PWS function detects the windshear event if measurable ____ occurs during the event. Precipitation. turbulence. wind speed. disturbances.

The primary components of the WXR/PWS system include a weather radar transceiver, a dual weather radar control unit, a single weather antenna drive, a weather radar antenna, and a weather radar _____. Transmitter/Receiver. receiver. display unit. transmitter.

Special precautions must be taken before using the Weather Radar (WXR) system on the ground in MAP, WX, or WINDSHEAR mode. The dangerous zone forward of the aircraft must be free of metallic obstacles such as hangars or aircraft, within 5 m in an arc of + or - 90º on either side of the aircraft _____. direction. radar. nose. Centerline.

Why is the crew oxygen system used?. to supply oxygen during normal flight. To supply oxygen during cabin pressurization loss. to supply oxygen during passenger emergencies. to supply oxygen to the cabin attendants.

How is the pressure of the oxygen cylinder indicated to the crew?. by a pressure regulator. By a direct-reading pressure gauge. by a pressure switch. by a low-pressure warning light.

Under what conditions do the passenger oxygen masks automatically deploy?. When the cabin altitude exceeds 14,000 feet. when the cabin altitude is below 10,000 feet. when a passenger pushes the MASK MANual ON button. when a crew member pushes the MASK MANual ON button.

What happens when the TiMeR RESET pushbutton is pushed in the passenger oxygen system?. the masks retract automatically. The electrical system is rearmed. the passenger address system is activated. the oxygen supply is shut off.

What initiates the chemical generation in the oxygen masks?. Pulling the mask towards the user's face. pressing the oxygen supply button. opening the container door. pushing the ON white light.

How many Crew oxygen bottles the A320 Neo has?. 1. 3. 2. None.

What is the purpose of the tamper seal in the portable oxygen container?. to indicate the oxygen level. to indicate if the PBE is operational. To show if the container is properly sealed. to signal low oxygen pressure.

The oxygen system includes: The crew system, the passenger system & the portable system. the passenger system,. the portable system,. all above.

The flight crew oxygen system is used if there is a loss of cabin pressurization or ____________ in the cockpit. fire. water. smoke. Smoke or dangerous gases.

The high-pressure portable cylinder includes continuous-flow type masks and supplies first aid oxygen to ____________. The passengers,. the cargo hold,. the overhead bins,. the cabin attendants.

There are two types of chemical generators supplying oxygen for 15 minutes or 22 minutes. True. false.

The Portable Breathing Equipment (PBE) is designed to help crew members and cabin attendants extinguish fires by supplying oxygen. True. false.

The high-pressure portable cylinder supplies oxygen to passengers in case of an emergency. true. False.

The flight crew oxygen is supplied from a high-pressure oxygen cylinder at a pressure of 127.5 bar (1.850 psig). True. false.

The oxygen cylinder in the flight crew oxygen system is installed in a cradle with two quick-release clamps in the R/H avionics compartment. true. False.

Low-pressure safety outlets are part of the safety devices that protect the crew oxygen system. True. false.

What are the primary purposes of the pneumatic system on the Airbus A320?. air conditioning and engine start. fuel Tank Inerting System and pressurization. anti-icing and ground power unit supply. All of the above.

When can high-pressure air bleed supplied to the pneumatic system from external ground sources?. only during engine start. only during anti-icing procedures. Both on the ground and in flight. never.

Which engine compressor stages supply bleed air to the pneumatic system?. only HP stage. only IP stage. Both IP and HP stages. neither IP nor HP.

What is the purpose of the High-Pressure Bleed Valve (HPV)?. to maintain high pressure in the pneumatic system. To supply air when engines are at low power. to regulate the temperature of the bleed air. to monitor system pressure.

Where is the Pressure Regulating Valve (PRV) installed in the pneumatic system?. upstream of the IP bleed valve. downstream of the HP bleed valve. Downstream of the IP and HP bleed valves. upstream of the High Pressure Bleed Valve (HPV).

Which components of the pneumatic system are primarily installed on the engines and in the pylons?. Pressure regulation components. temperature regulation components. leak detection components. crossbleed valve components.

What happens if one Bleed Monitoring Computer (BMC) fails?. The associated FAULT light is lost. the associated bleed valve closes automatically. the overpressure warning is activated. both BMCs exchange data via ARINC bus.

The temperature of the engine bleed air is regulated by passing it through an air-to-air heat exchanger called the ________________. Precooler. fan discharge. crossbleed. APU supply.

Both Bleed Monitoring Computers (BMCs) receive signals from the leak detection loops. They exchange data via an ARINC bus for wing double loop detection. The wing loops A are connected to BMC 1, and wing loops B are connected to BMC 2. The crosstalk bus allows wing leak warnings to be activated through an ________________. or logic. xor logic. AND logic. not logic.

How is the engine air bleed pressure pneumatically regulated in the Airbus A320 family of aircraft?. High Pressure (HP) Valve (VLV), Pressure Regulating Valve (PRV). Bleed Monitoring Computers (BMCs), Wing Anti-Ice (WAI). Pressure Regulating Valve (PRV), High Pressure (HP) Valve (VLV). Wing Anti-Ice (WAI), Bleed Monitoring Computers (BMCs).

When does the HP VLV pneumatically regulate the air supply, and within what pressure range does it operate?. At low engine speed, 8 to 36 psi. at high engine speed, 44 to 85 psi. at idle, 110 to 240 psi. at high altitude, 15,000 ft to 35,000 ft.

What is the primary function of the IP check valve, and when does it come into play?. Protects the IP stage from reverse flow when HP VLV is open. regulates the pressure downstream from the PRV. monitors engine fire at 450°C. controls bleed pressure at high altitude.

Describe the two operating modes of the PRV control solenoid and the conditions under which each is used. Pneumatic mode for reverse flow protection, electrical mode for ENGine BLEED P/B OFF. pneumatic mode for overpressure, electrical mode for engine fire. pneumatic mode for engine fire, electrical mode for altitude > 15,000 ft. pneumatic mode for delta pressure, electrical mode for precooler temperature.

The engine air bleed pressure is pneumatically regulated by the __________ when air is supplied by the HP stage, or by the __________ when the air is supplied by the Intermediate Pressure (IP) stage. High Pressure (HP) Valve (VLV), Pressure Regulating Valve (PRV). bleed Monitoring Computers (BMCs), Wing Anti-Ice (WAI). pressure Regulating Valve (PRV), High Pressure (HP) Valve (VLV). wing Anti-Ice (WAI), Bleed Monitoring Computers (BMCs).

When does the HP VLV pneumatically regulate the air supply, and within whatpressure range does it operate?. At low engine speed, 8 to 36 psi. at high engine speed, 44 to 85 psi. at idle, 110 to 240 psi. at high altitude, 15,000 ft to 35,000 ft.

What is the primary function of the IP check valve, and when does it come into play?. Protects the IP stage from reverse flow when HP VLV is open. regulates the pressure downstream from the PRV. monitors engine fire at 450°C. controls bleed pressure at high altitude.

When the X-BLEED selector is in the SHUT position, the ground air supply will be available to supply the LH and RH systems ____________. simultaneously. Independently. alternately. occasionally.

The leak detection system is used to detect leaks in the vicinity of the packs, wings, pylons, and APU hot air ducts. Each wing is monitored by a double loop, and the pylon and APU hot air ducts are monitored by a ____________ loop. dual. redundant. Single. triple.

The APU bleed air supplies the pneumatic system through the APU bleed valve if the APU is ____________. operational. Running. stopped. in standby mode.

A ground cart may supply the pneumatic system, and thesupply duct is located on the left-hand side of the cross bleed valve. Only the LH bleed system is supplied when the X-BLEED select is in the ________ position of ground air supply. off. auto. OPEN. shut.