M11

What's the transonic flight?. a flight in which the aircraft speed is between the Mach number 0.8 and Mach number 5.0. a flight in which the aircraft speed is between the Mach number 0.8 and Mach number 1.2. a flight in which the aircraft speed is below the Mach number 1.0.

What's the formula of the speed of sound?. c = √ (γ·T·P). c = √ (γ·R·P). c = √ (γ·R·T).

What's the subsonic flight?. a flight in which the aircraft speed is greater the value of Mach number 1.5. a flight in which the aircraft speed is below the value of Mach number 0.8. a flight in which the aircraft speed is below the value of Mach number 2.0.

The lights used to illuminate laterally the taxi-way are: the landing lights. the runway turnoff lights. the strobe lights.

Where is located the switch that controls the light in the cargo bay?. on the servicing panel. close to the freight door. in the cockpit.

A steady white of aircraft navigation lights is installed. left side of the aircraft. on the rear fuselage. right side of the aircraft.

What is the visual angle of a wing navigation light?. 75 degrees. 140 degrees. 110 degrees.

The tank of "breathing oxygen aviators" is generally identified by. red colour. black colour. green colour.

What does the color code used in the DOOR/OXY page of the ECAM system include?. green and amber indications. white and red indications. white and amber indications.

The oxygen system supplied on board of the aircraft can be : pressure demand. continuous flow. both.

If the emergency oxygen has low pressure, the ECAM oxy page shows. green colour. red colour. amber colour.

The chemical emergency oxygen generator of an aircraft: generates heat during the reaction. it is not used. is based on special air filtering.

The engine bleed air of pneumatic system is: never used in the aircraft cabin. it is thermally treated before aircraft cabin entering. directly supplied to the aircraft cabin.

The V clamp connection of pneumatic ducting. must allow thermal expansion. must be rigid. never used.

Which is a normal pressure value for the pneumatic system?. 75 psi. 45 psi. 15 psi.

How is moved the isolation valve?. using an hydraulic actuator. using a mechanical actuator. using an electrical actuator supplied with 115 V AC.

The aircraft reusable liquid flush type toilet consists of: a container with chemical mixture with toilet unit on the top. two water circuit (potable and WC water). Elson type.

Which sentence is correct?. the defueling toilet ground panel is not requested. the Elson toilet includes a vacuum pump. the vacuum tanks connections of toilet can be double.

How does the vacuum flush type toilet work in cruise flight?. it is activated using the pressure difference. it is activated by an electrical motor. it is activated by a pump.

Which function is done by the central maintenance system ?. the control of the aircraft CG. information about ground test. the control of structure status.

Which data are typically available in real time on the maintenance window of the Multi Function Display (MFD)?. flight management information received by the Modular Avionic Unit (MAU). air conditioning system faults. weather alerts.

What is the damage tolerance?. it is a maintenance monitoring system used for non-accessible areas. it is the ability to withstand damages. it is the ability to repair damages in an automatic mode.

Which system provides maintenance aid to the technicians form CDU. central maintenance system. central management system. computer management system.

Which are the advantages of a strong partitioning in IMA?. It prevents false warning. It reduces faults and allows a new system adding. It reduces fuel consumption and pilot fatigue.

What is purpose of the cabin adress system?. The cabin address system is used by the ground crew to send messages to passengers. The cabin address system is used by passenger to send messages to the crew. The cabin address system is used by the cabin crew to send messages to passengers.

What is the meaning of the acronym PCU?. Pressurization Control Unit. Power Control Unit. Personal Control Unit.

What is the meaning of the acronym CIDS?. Cabin Intercontinental Data System. Cabin Intercommunication Data System. Cabin Intercommunication Data Surveillance.

What is GMCS of aircraft cabin information system: ground manoeuvre camera system. ground management camera system. Ground manoeuvre computer system.

How many levels of information are stored on board?. 3. 4. 2.

The modern aircraft cabin information system has. only CDU reading function. can use only black and white CDU. three multipurpose CDU.

The over-inflation of aircraft tires. increases the track grip. reduce the track grip. does not affect the grip.

A no light indication of landing gear means: unit locked down. unit locked up. unit unlocked.

A steering wheel can incorporate: both. a self centering jack. a shimmy damper.

The aircraft landing gear must absorb: vertical forces. vertical and horizontal forces. horizontal forces.

Which is the brakes function?. to absorb potential energy. to absorb kinetic energy. to absorb dynamic energy.

The vibrating rod ice detector consist of: a black hot rod detector. resonant frequency of ice vibration. resonant frequency of probe vibration.

Which type of ice can form in regions of high humidity?. clear and rime ice. opaque and rime ice. clear and opaque ice.

The electrical de-icing method is based on: don't affect the engine performance. decreases the engine performance due the electrical power. increases the engine performance due the electrical power.

Which's the movable surface of the aircraft tail?. the elevator. the vertical stabilizer. the horizontal stabilizer.

How can be used struts and ties on an aircraft structure?. to realize landing gear boogies. to realize fuel tanks. to build fuselage and on wings.

Which's the wing element that provides the wing shape?. the stringer. the spar. the rib.

Which points are considered on airframe design?. only the beauty of the shape of the aircraft. the aerodynamics, the manufacturing methods and the materials technology. the consideration of the airline.

Which's the fuselage type made of frames, bulkheads and a collaborative skin?. the truss type. the semi-monocoque type. the monocoque.

Heating the windshields is necessary because. both. it increases the flexibility of the windshields. it keeps the windows free of ice.

When does the white warning indicator located on doors illuminate?. When the escape slide is armed and the door handle is up. When there is cabin pressurization, both engines are off and the door is disarmed. When the escape slide is disarmed, the door handle is up and engines are on.

When does the red warning indicator located on doors illuminate?. when there is cabin pressurization when both engines are off and the door is disarmed. when the escape slide is armed, the door handle is up and engines are on. when the escape slide is armed and the door handle is up.

Which cycle is used as a cooling cycle?. vapour cycle. compression cycle. combustion heater cycle.

The pressure difference between inside and outside of aircraft. is designed within the range 6-9 psi. is designed within the range 6-9 bar. is designed within the range 6-9 atm.

Which are the aircraft compartments that are pressurized?. the cockpit, the engine and the passenger cabin. the cockpit, the passenger cabin and the cargo compartments. the passenger cabin, the engine and the cargo compartments.

How is called the internal pressure, when the cabin is pressurized?. average altitude. pressure altitude. cabin altitute.

Flying from low pressure area to higher pressure at the same height,. the altimeter indicate a lower altitude than the real one. the altimeter indicate an higher altitude than the real one. the altimeter indication do not change.

The maximum allowed speed with extracted flap is represented by. the upper limit of the white arc of air speed indicator. the upper limit of the red arc of air speed indicator. the lower limit of the white arc of sir speed indicator.

The direct reading compass. provides main aircraft direction. is UHF radio. is radio signal.

What does the top of the ADF (Automatic Direction Finder) indicate?. where the VOR (VHF Omni Directional Range) ground station is located. where the ILS (Instrumental Landing System) ground station is located. where the NDB (Non Directional Beacon) ground station is located.

The directional gyro gaps must corrected every 15-20 flight minutes. due geographic north. due the apparent precession. gyroscopic wander.

The specific gravity of a Nickel-Cadmium battery is about: 12,4 - 13,0 at environmental temperate. 1,24 - 1,3 at environmental temperature. 1,24 - 1,3 at 0° C.

What happens on the primary windings of the transformer?. an electrical sinusoidal voltage is applied. both, according the type of the transformer. a sinusoidal magnetic field is applied.

What's the principle that regulates the operational of the dynamo?. The Pascal law. The Joule law. The Faraday law.

In the electric plant, what is the HMG meaning ?. Hydraulic Motor Generator. High Magnetic Generator. Hot Motor Generator.

What does a time relay require?. requires a continuous excitement. requires continuous pulses of current during its operational time. automatically executes an electrical maneuver after a specific time period.

A rotary or dynamic inverter is used in electrical power plant in order to. converts DC to AC. current flow inverter. converts AC to DC.

The electrical discharge protection systems are classified as: active safety devices. not safety devices. passive safety devices.

Which gas is used to inflate life jackets?. air. CO2. Nitrogen.

The anti-crash aircraft seats are classified as: active safety devices. passive safety devices. not safety devices.

The aircraft procedure evacuation is classified as: not safety devices. active safety devices. passive safety devices.

The emergency locator transmitter is classified as: active safety device. passive safety device. not a safety device.

To reduce the fire risk into the aircraft fuel tanks: both. oxygen pressurizing tank is used. a reticular filler is used.

Which kind of detector bases its operation on a bimetallic strip?. smoke detector. thermal detector. continuous detector.

Which was the color associated to warning conditions light on old aircraft?. yellow. green. red.

What happens when a temperature higher than a fixed value is detected?. The detectors crash and interrupts a circuit. The detectors activate an alarm. The detectors active a signal only after the pilot has verified the fire condition on the dedicated control panel.

Which kind of fire protection sensor are located in the avionic compartments?. Speed detectors and smoke detectors. Smoke detectors and temperature sensors. Pressure detectors and temperature sensors.

On which axis of the aircraft is realized a roll movement?. the lateral axis. the longitudinal axis. the vertical axis.

How are used yaw damper devices?. To reduce the rolling and yawing oscillations. To move the centre of gravity of the aircraft. To give force feedback on control stick.

The accelerometers stall warning. is based on a slot cut in the wing leading edge. is based on variation of angle of attack. is based on accelerometer installation on the a/m nose.

The paddle signal position of angle attack probe of stall warning. is based on accelerometer sensors. is based on a optical probe. is based on analogue transducer.

The active load control of aircraft control surface. reduces some aero-elastic problems. reduces the pilot force during the flight. both wrong.

The cross feed of airliners engines guarantees that. only one engine running. at least on engine feed. all engines fuel feed request.

The best performance of aircraft fuel tank sensors are: capacitive sensors. mechanical sensors. the weight sensors.

Which is the function of transfer pumps in fuel system of multi-engine aircrafts?. they have the function to provide an appropriate value of fuel temperature in the system. they have the function to provide an appropriate value of pressure in the system. they have the function to provide an appropriate value of fuel density in the system.

What about the weight of the wing tanks?. it doesn't affect the load on wings. it reduces the load on wings. it increases the load on wings.

Which is the purpose of the Emergency Power Unit (EPU)?. it provides energy to complete the mission. it provides energy to retry systems. it provides energy for an emergency landing.

The sequence valve of a hydraulic circuit: cuts off the circuit from the pump. prevents the circuit from low pressure. prevents the circuit from high pressure.

To change the pressure and flow rate of hydraulic fluid: a proportional valves is installed. a shuttle valve must be installed. a relief valve is installed.

Which of the following substances can activate the Emergency Power Unit (EPU)?. hydrazine. oxygen. nitrogen.

Why the leading edge can have a “sawtooth”?. because it improves the passenger visibility from the cabin windows. because it delays the wing stall. because it increase the boundary layer turbulence.

Which of the following devices are common boundary layer controls?. servo tab. stalling strips. slats.

Which is the function of wing fences?. to prevent the entire wing from deforming under critical load. to prevent the entire wing from reaching a high critical Mach number. to prevent the entire wing from stalling.

Emergency AD is: Mandatory to apply within specified limits. depend how it has been classified ( Mandatory, recommended or optional). Mandatory to apply in the nearest check time.

Airworthiness is a condition in which an aircraft: both. Some AD's can be postponed to next Check. Is in order with the mandatory maintenance.

Airworthiness is a condition in which an aircraft: Is modified according to approved specifications by the authority. both. Is congruent with the approved type.

The aerodynamic balance panel are used: both. during the landing. to amplify the pilot force.

which sentence is correct?. the bonding is a corrosion protection. both. the bonding is a protective film for special alloys.

which of the following Alloys entered in use with the 4th Generation A/C production ?. aluminum alloy 2042. aluminum alloy types, like 6013 (Al-Mg-Si-Cu) and 1424 (Al-Mg-Li-Alloy). none of them.

What is the station line of aircraft?. a secondary structure. an aircraft reference. primary structure.

What is the aircraft station line?. primary structure. an aircraft reference. a secondary structure.

The minimum tow rope strength requirements is _____ of the gliders maximum certificated operating weight. 80%. 90%. 70%.

regarding the A/C doors, which of the following statements is true. instructions for closing and opening them will be in the AFM. closing and opening the doors can not be done by the Technical staff. instructions for closing and opening them must be easy to read and simple to understand.

Which of the following surfaces are the control surfaces of the tail unit?. elevator and ailerons. elevator and rudder. elevator and spoilers.

Th main advantages of wing tanks are: Possibility to use a volume already available. Possibility to use a volume already available and having CG close to that of the aircraft. Possibility to use a volume already available, having CG close to that of the aircraft and reduce stresses acting on the wing.

Over the wings of a commercial aircraft. the escape slides are mandatory. depend on the weather condition. the escape slides are not required.

The main spar of the wing is considered as : secondary structure. tertiary structure. primary structure.

Stabilizer with variable incidence are used on aircraft where. Variation of the position of the Centre of Thrust is very wide. Variation of the position of the Centre of Pressure is very wide. Variation of the position of the Centre of Gravity is very wide.

Stabilizer can be: Vertical. Horizontal. Both.

The movable control surface installed on the horizontal stabilizer is called. Rudder. Elevator. Flap.

Which is the function of hydraulic servo-systems for flight controls?. Allow a greater deflection of control surfaces. Prevent the stall. Reduce the pilot efforts.

The flutter of the flight control surface. is amplified by studied balancing mass. it is stopped by the pilot lever. it is dumped by studied balancing mass.

Which of the following is a motion technique for control surfaces?. wireless controls. pneumatic mechanisms. mechanical connections of cables and bars.

What are nacelles?. Streamlined enclosure used to house engines. Streamlined enclosure used to house engines inside fuselage. Sealed enclosure to house the combustion chamber.

Nacelles usually are made of: Wood. Titanium. Metal panel or composite materials.

Firewall, as part of nacelles to separate the engine compartment from the rest of the aircraft, are made of. metal panels or composite materials. Titanium. Wood.

How many segments are there in the distribution system?. 3. 2. 1.

The APU. it supplies 80% of own air flow. it cannot supplies pneumatic system. it supplies the 8% of own air flow.

The pneumatic energy from APU. never used. it depends on the situation. it is always used.

Which devices are used for the distribution of the air conditioned?. net of ducts and a series of air vents. NVG and IGT. drain valves and IGT.

The manual control temperature of aircraft cabin air: is employed only on large aircraft. is employed on jet engine airliners. is employed with engine exhaust heating system.

Which is the function of the humidifier?. to decrease the air temperature. to increase the relative air humidity. to decrease the relative air humidity.

In air conditioning system by vapour cycle; the water. is heated by the air flow passing through. is cooled by the air flow passing through. is mixed with the air flow passing through.

Which is the function of the air conditioning system?. to provide heat to the air got by the compressor. to provide heat to the air got by the turbine. to maintain confortable environmental conditions.

What is the inward relief valve?. it is the valve that operates when the external pressure is greater than the internal cabin pressure of the aircraft. it is the valve that controls the fuel flow between the tanks and landing gear compartments. it is the valve that controls the fuel flow between the tanks and the engine.

What happens to the outflow valve in case of failure of the pressurization system?. it preserves the cabin pressure. it decreases the cabin pressure. it increases the cabin pressure.

How is expressed the value provided by the cabin variometer?. psi. ft/min. lb/min.

What is the meaning of DME abbreviation. distance measuring equipment. direct measuring equipment. directional measuring equipment.

What is the scope of the TCAS. it provides navigation information. it informs the pilot about the other aircraft in the airspace. it provides attitude information.

The EFIS includes. both. electronic horizontal situation indicator. primary flight control surfaces.

The EADI has the scope to provides information about. the aircraft speed. the aircraft attitude. aircraft path.

The EFIS consists of. elaboration units. electronic displays and control panels. both.

The EHSI has the scope to provides information about. the aircraft control surfaces. aircraft attitude. navigation.

The airliners cabin and furnishing installation : depends on the economical company strategy. is a fixed standard. depend on specific EASA rules.

Which are the typical 3 classes of cabin seating division?. short, medium or long range classes. first, business and economic. economic, low density and officer classes.

Which's the criteria for seats certification?. series of measures that are carried out during the tests. previous accidents consequences. drawing studies.

How is called the upper storage part of the cabin?. cast. hatbox. boot.

Which equipment is used in the cabin for fire fighting?. mobile portable extinguishers. fixed extinguishers. extinguishers with foaming agents.

What is the main purpose of an artificial feel device?. to works with rudder limiter systems. to reduce the rolling and yawing oscillations. to give tactile feedback to pilot.

Which kind of movement do the ailerons control?. aircraft pitch movement. aircraft roll movement. aircraft yaw movement.

Which are the components included in a manual flight control system?. pipes, unions and jacks. wires and pulleys. rods, tension cables, pulleys and sometimes chains.

What is the function of a gust lock on an aircraft?. it ensures the correct cabin air ventilation. it limits the displacement of the stabilator. it locks control surfaces in place.

the Artificial feel system : it's old technology and not used any more. as per Boeing philosophy it is not present on B777. as per airbus philosophy it is not present on A320/330/340.

How is also called the Fly-By-Optics system?. Fly-By-Night. Fly-By-Light. Fly-By-Wing.

how is the effect of the fowler flap on the lift ?. around 60 % increase. around 90% increase. not more than 30% increase.

What's the Fly-By-Optics system?. a night cockpit vision system. a modern aircraft electrical power distribution system. an evolution on Fly-By-Wire system.