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The installation and use of on board oxygen generators is such that 1 the smoking ban is imperative when used2 radio transmissions should be ?

Information > helipad

exemple 142

The replenishment of an onboard oxygen bottle must be done ?

exemple 143
The replenishment of an onboard oxygen bottle must be done With engine(s) off, with engine(s) on, with engine(s) at idle, with a ground power unit connected, electrical power supplied.

The contents of an oxygen bottle can be ensured by the 1 weight2 pressure3 level4 volumeThe combination containing all of the correct statements is ?

exemple 144
The contents of an oxygen bottle can be ensured the 1 weight2 pressure3 level4 volumethe combination containing all of correct statements 2 only, 3 only, 2 3 only, 4 only. a full cylinder of oxygen weighs a lot more than empty one. the content can also be checked reading pressure gauge.

  • exemple 145
    The demand valve of a diluter demand type oxygen regulator in normal mode operates when User breathes in, user breathes out, user requires% oxygen, pressure in oxygen reservoir more than 5 psi.

  • exemple 146
    A passenger oxygen mask A continuous flow mask in principle should not be used if there smoke in cabin, an on demand type mask in principle should not be used if there smoke in cabin, a continuous flow mask must be used if there smoke in cabin, an on demand type mask must be used if there smoke in cabin.

  • exemple 147
    A smoke hood a device covering The whole head with a continuous oxygen flow, whole head with an oxygen flow only on demand, only nose the mouth with an oxygen/air mix, only nose the mouth with a continuous oxygen flow. A smoke hood has continuous flow, it a protective breathing equipment (pbe). >x2pjcxp m2e basilismail is this question different from question number 718? wich says that a smoke mask a mask with flow on request not continuous. question 718 about a smoke mask, which different from a hood. a smoke mask a device covering whole face with an oxygen flow only on demand.

  • exemple 148
    Regarding chemical oxygen generator to enable oxygen to flow passenger must Firmly pull mask towards his face, operate relevant switch in his armrest, firmly pull door compartment of oxygen mask storage, turn oxygen valve to open.

  • Question Helicopter : Rotor heads 37 Answer 8

    Fixed oxygen systems in pressurised aeroplanes are used to provide oxygen 1 in event of depressurisation 2 in event of any passenger indisposition 3 during a normal flight 4 in event of smoke or toxic fumes in cockpit the combination of corrects statements , 4,, 2, 4, 3, 2, 3.

  • Question Helicopter : Rotor heads 37 Answer 9

    When using an emergency oxygen mask a pilot able to Both transmit receive, receive only, transmit only, neither transmit or receive

  • Question Helicopter : Rotor heads 37 Answer 10

    A smoke mask a Mask with flow on request covers whole face, continuous flow mask covers whole face, mask with flow on request covers only nose the mouth, continuous flow mask covers only nose the mouth.

  • Question Helicopter : Rotor heads 37 Answer 11

    Which of these statements about chemical oxygen generators are correct or incorrect i chemical oxygen generators are used to supply cockpit oxygen system ii the oxygen supply of chemical oxygen generators once activated can be switched off I incorrect, ii incorrect, i correct, ii correct, i incorrect, ii correct, i correct, ii incorrect.

  • Question Helicopter : Rotor heads 37 Answer 12

    Which of these statements about chemical oxygen generators are correct or incorrect i chemical oxygen generators are often used to supply passenger oxygen ii the oxygen supply of chemical oxygen generators once activated can be switched off I correct, ii incorrect, i incorrect, ii incorrect, i incorrect, ii correct, i correct, ii correct. Most commercial aircraft are pressurized at a maximum cabin altitude of 8000 feet, where it possible to breathe normally without an oxygen mask. if cabin pressurization level reaches equivalent of 14000 feet or higher on exterior, or a decompression occurs above that flying level hypoxia possible, compartments containing oxygen masks will open automatically, either above or in front of passenger crew seats, the oxygen masks will drop down in front of passenger.

  • Question Helicopter : Rotor heads 37 Answer 13

    Which of these statements about chemical oxygen generators are correct or incorrect i chemical oxygen generators are often used to supply passenger oxygen ii the oxygen supply of chemical oxygen generators once activated cannot be switched off I correct, ii correct, i incorrect, ii incorrect, i incorrect, ii correct, i correct, ii incorrect.

  • Question Helicopter : Rotor heads 37 Answer 14

    Which of these statements about chemical oxygen generators are correct or incorrect i chemical oxygen generators are used to supply cockpit oxygen system ii the oxygen supply of chemical oxygen generators once activated cannot be switched off I incorrect, ii correct, i correct, ii correct, i incorrect, ii incorrect, i correct, ii incorrect. chemical oxygen generators are used to supply cockpit oxygen system incorrect , cockpit oxygen carried in a gaseous state, pressurised in cylinders to 1800 psi (greater autonomy, reversible functioning possibility to regulate flow). the oxygen supply of chemical oxygen generators, once activated, cannot be switched off correct , they use sodium chlorate iron filings, the supply lasts about 15 minutes. the flow can not be modulated it a continuous flow.

  • Question Helicopter : Rotor heads 37 Answer 15

    The advantages of a chemical oxygen source the passenger cabin are 1 reduced weight and volume 2 easy storage and maintenance 3 greater autonomy 4 no risk of explosion 5 reversible functioning 6 no maintenance the combination regrouping all correct statements , 2, 4 6,, 2, 3, 4, 5 6, 2, 3 5,, 3, 4 5

  • Question Helicopter : Rotor heads 37 Answer 16

    The disadvantages of a chemical oxygen source the passenger cabin are 1 a flow which cannot be modulated 2 a heavy and bulky system 3 non reversible functioning 4 risks of explosion 5 poor autonomy the combination regrouping all correct statements , 3 5,, 2, 3, 4 5, 2 4,, 2, 3 5

  • Question Helicopter : Rotor heads 37 Answer 17

    The advantages of a gaseous oxygen source compared with a chemical source the passenger cabin are 1 no risk of fire and/or explosion 2 possibility to regulate flow 3 more capacity the combination that regroups all of correct statements 2, 3, only, 2 only ,, 2.

  • Question Helicopter : Rotor heads 37 Answer 18

    High frequency vibration usually emanates from Transmission shafting, the main rotor gearbox, the engine or tail rotor, the main rotor blades.

  • Question Helicopter : Rotor heads 37 Answer 19

    The sand filter located at air intake of a gas turbine engine Reduces efficiency of air intake, increases efficiency of air intake, has no effect on efficiency of air intake, has an effect on efficiency of compressor only.

  • Question Helicopter : Rotor heads 37 Answer 20

    Warning lights associated with basic pitot/static heating systems in helicopters usually inform pilot that when illuminated Either heating element or power relay has failed, the heating element has failed, the power supply to system has failed, the heating system on the heater cycling on/off.

  • Question Helicopter : Rotor heads 37 Answer 21

    Helicopter engine bellmouth air intakes May be heated either hot oil, electric mats or engine bleed air, are always heated engine bleed air from engine compressor, are always heated electrically heated mats, are not heated. bell mouth inlet duct a form of convergent inlet air duct used to direct air into inlet of a gas turbine engine. the area of duct gets smaller as air flows into engine. the duct very efficient, especially where ram pressures are low, as in helicopter engines where it used widely.it may be heated either hot oil, electric mats or engine bleed air.

  • Question Helicopter : Rotor heads 37 Answer 22

    Heating systems helicopters may obtain hot air from following sources 1 air tapped from engine compressor 2 air tapped from engine turbine 3 ambient air heated electrical elements the combination grouping all of correct statements

  • Question Helicopter : Rotor heads 37 Answer 23

    Warning devices associated with air conditioning systems fitted in helicopters are limited to A green system ''on'' information light amber bleed air failure lights, amber bleed air failure warning lights red fire warnings three wheel air cycle machine failure, a green system serviceable light an amber warning light, an amber system ''on'' information light, a green serviceable light either a red or amber duct overpressure light.

  • Question Helicopter : Rotor heads 37 Answer 24

    The most common type of starter used on a helicopter engine A d.c starter/generator, a d.c starter motor, an a.c starter/generator, an a.c starter motor.

  • Question Helicopter : Rotor heads 37 Answer 25

    The most common material used in construction of gearbox casings Magnesium alloy, aluminium alloy, steel alloy, titanium alloy.

  • Question Helicopter : Rotor heads 37 Answer 26

    For a large helicopter ram air ventilation May be provided throughout cockpit cabin through a series of ducts, provided to pilots only, ducted from downwash of main rotors to gasper ducts throughout helicopter, may be provided throughout cabin from ducts in doors only.

  • Question Helicopter : Rotor heads 37 Answer 27

    The throttle control may be interconnected with The collective lever, to increase power with increased pitch application, collective lever, to decrease power with increased pitch application, yaw pedals, to increase tail rotor speed directional control inputs, cyclic stick, to increase power cyclic control inputs.

  • Question Helicopter : Rotor heads 37 Answer 28

    The purpose of primary stops in a flying control system to Restrict movement of controls within correct range, prevent damage to system when helicopter parked in high winds, act as a stop in case of vibration of controls, bring main tail rotors to rest as soon as possible after shut down.

  • Question Helicopter : Rotor heads 37 Answer 29

    The ducted fan type tail rotor Uses an aerofoil shaped duct creating thrust, is chosen in design solely due to safety reasons, is mounted at base of fin allowing lighter supporting structure to offset fin to counter tail rotor drift, is of simpler design of a lower cost of manufacture than a traditional tail rotor.

  • Question Helicopter : Rotor heads 37 Answer 30

    Friction controls are usually fitted to Both collective cyclic controls, but only collective friction adjustable in flight, both collective cyclic controls which are adjustable in flight, the collective control only, the cyclic control only.

  • Question Helicopter : Rotor heads 37 Answer 31

    Which of following statements about swash plate in a helicopter provided with a hydraulic control system correct To be able to move or to tilt swash plate in all directions at least three separate servo units are needed, helicopters with a so called artificial feel do not need a swash plate, all helicopters are equipped with a swash plate, another name swash plate spider arm.

  • Question Helicopter : Rotor heads 37 Answer 32

    The main reason fitting a rotor brake can be 1 to bring rotor quickly to rest after engine shut down 2 to stop rotor from flight rpm 3 to avoid high wind rotor engagement 4 to allow an abrupt rotor stop at landing the combination which regroups all of correct statements , 3, 3, 4,, 3, 4, 2, 4.

  • Question Helicopter : Rotor heads 37 Answer 33

    Rotor brakes are often located On tail rotor drive shaft, on main rotor shaft, on a separate drive shaft on main rotor gear box, within main rotor gearbox.

  • Question Helicopter : Rotor heads 37 Answer 34

    Rotor brake discs are manufactured from Steel or carbon fibre, alumicnium or steel, steel or titanium, boron aluminide or titanium.

  • Question Helicopter : Rotor heads 37 Answer 35

    Wear rate of a control rod spherical bearing Exponential, progressive, constant, unpredictable.

  • Question Helicopter : Rotor heads 37 Answer 36

    The purpose of fixed scissors to Resist rotational force applied to lower swashplate in a rotorhead system, ensure wheel remains correctly orientated to oleo leg in a landing gear, act as lower jaw of cable cut device on a hoist, provide part of feedback mechanism in an auto pilot system.

  • Question Helicopter : Rotor heads 37 Answer 37

    Tail rotors differ from most main rotors in that The pitch changes from a negative angle setting to a positive angle setting, the tail rotor rotates at a lower speed, they always have few blades, the lead/lag hinge incorporated with flapping hinge.

  • Question Helicopter : Rotor heads 37 Answer 38

    Tail rotors differ from main rotors in that They do not provide blade pitch cyclic variation, pitch remains constant throughout all flight regimes, they rotate at a lower speed, they always have fewer blades.

  • Question Helicopter : Rotor heads 37 Answer 39

    Main rotor droop stops Are inactive during flight, move to prevent rotor disc drooping excessively during turbulent conditions preventing damage to tail cone in flight, prevents rotor droop in flight ensuring engine provides additional power immediately when required the rotor, prevents engine power reducing below requirements to sustain rotor rpm.

  • Question Helicopter : Rotor heads 37 Answer 40

    An unshrouded tail rotor has Equal pitch change to all blades, different pitch change to each blade, cyclic pitch control only, rpm control independently of main rotor.


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