The installation and use of on board oxygen generators is such that 1 the smoking ban is imperative when used2 radio transmissions should be ?
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The replenishment of an onboard oxygen bottle must be done ?
The contents of an oxygen bottle can be ensured by the 1 weight2 pressure3 level4 volumeThe combination containing all of the correct statements is ?
The demand valve of a diluter demand type oxygen regulator in normal mode operates when a full cylinder of oxygen weighs a lot more than empty one the content can also be checked reading pressure gauge. 
A passenger oxygen mask A continuous flow mask in principle should not be used if there smoke in cabin. a full cylinder of oxygen weighs a lot more than empty one the content can also be checked reading pressure gauge. 
A smoke hood a device covering The whole head 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. 
Regarding chemical oxygen generator to enable oxygen to flow passenger must Firmly pull mask towards his face. 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. Question 37-8
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 Firmly pull mask towards his face. 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. Question 37-9
When using an emergency oxygen mask a pilot able to Both transmit receive. 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. Question 37-10
A smoke mask a Mask with flow on request covers whole face. 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. Question 37-11
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. 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. Question 37-12
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. 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 37-13
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. 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 37-14
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. 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 37-15
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 I incorrect ii correct. 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 37-16
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 I incorrect ii correct. 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 37-17
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 I incorrect ii correct. 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 37-18
High frequency vibration usually emanates from Transmission shafting. 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 37-19
The sand filter located at air intake of a gas turbine engine Reduces efficiency of air intake. 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 37-20
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. 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 37-21
Helicopter engine bellmouth air intakes May be heated either hot oil electric mats or engine bleed air. _sg() 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 37-22
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 May be heated either hot oil electric mats or engine bleed air. _sg() 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 37-23
Warning devices associated with air conditioning systems fitted in helicopters are limited to A green system ''on'' information light amber bleed air failure lights. _sg() 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 37-24
The most common type of starter used on a helicopter engine A d c starter/generator. _sg() 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 37-25
The most common material used in construction of gearbox casings A d c starter/generator. _sg() 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 37-26
For a large helicopter ram air ventilation May be provided throughout cockpit cabin through a series of ducts. _sg() 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 37-27
The throttle control may be interconnected with The collective lever to increase power with increased pitch application. _sg() 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 37-28
The purpose of primary stops in a flying control system to Restrict movement of controls within correct range. _sg() 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 37-29
The ducted fan type tail rotor Uses an aerofoil shaped duct creating thrust. _sg() 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 37-30
Friction controls are usually fitted to Both collective cyclic controls but only collective friction adjustable in flight. _sg() 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 37-31
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. _sg() 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 37-32
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 To be able to move or to tilt swash plate in all directions at least three separate servo units are needed. _sg() 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 37-33
Rotor brakes are often located On tail rotor drive shaft. _sg() 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 37-34
Rotor brake discs are manufactured from Steel or carbon fibre. _sg() 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 37-35
Wear rate of a control rod spherical bearing Steel or carbon fibre. _sg() 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 37-36
The purpose of fixed scissors to Resist rotational force applied to lower swashplate in a rotorhead system. _sg() 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 37-37
Tail rotors differ from most main rotors in that The pitch changes from a negative angle setting to a positive angle setting. _sg() 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 37-38
Tail rotors differ from main rotors in that They do not provide blade pitch cyclic variation. _sg() 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 37-39
Main rotor droop stops Are inactive during flight. _sg() 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 37-40
An unshrouded tail rotor has Equal pitch change to all blades. _sg() 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.
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