Sometimes minimised the incorporation of tank sump pads.
In order to ensure that all fuel on board is available to any engine on a multi engine aircraft it must be fitted with ?
In order to ensure that all fuel on board available to any engine on a multi engine aircraft it must be fitted with Sometimes minimised the incorporation of tank sump pads.
Which statement is true concerning the structure and possible advantage of an integral fuel tank ?
Which statement true concerning structure and possible advantage of an integral fuel tank It built internally using aircraft structure this saves weight space. Fuel dump systems are required On all transport category aircraft where maximum take off weight significant higher than maximum landing weight. The ventilation system in a fuel tank Prevents low pressure or excessive overpressure in tank. The fuel tanks of aircrafts must be checked water Before first flight of day or after a long turnaround time. The functions of an lp booster pump in a gas turbine fuel system are to Avoid vapour locking prevent cavitation of hp fuel pump. 8 Apu fuel can be provided Any ac fuel pump supplying fuel to left fuel manifold or the left main tank dc fuel pump. Cqb 15 september 2011. 9 The primary input signals a hydro mechanical gas turbine engine fuel control system include N2 compressor discharge pressure compressor inlet temperature fuel shut off thrust lever angle.
fitted within hp fuel pump a 'hydro mechanical governor' which uses hydraulic pressure proportional to engine speed as its controlling parameter
this system uses n2 compressor discharge pressure compressor inlet temperature fuel shut off thrust lever angle as primary input signals. 10 The primary reason venting an engine oil tank to Prevent excessive pressure in tank.
fitted within hp fuel pump a 'hydro mechanical governor' which uses hydraulic pressure proportional to engine speed as its controlling parameter
this system uses n2 compressor discharge pressure compressor inlet temperature fuel shut off thrust lever angle as primary input signals. 11 The cross feed fuel system can be used to 1 feed any engine from any fuel tank 2 dump unusable fuel 3 adjust fuel distribution4 to transfer fuel from one tank to another located in same wingthe combination that regroups all of correct statements Prevent excessive pressure in tank.
using crossfeed an engine can draw fuel from a fuel tank located in opposite wing
on most multi engine airplanes operation in crossfeed mode an emergency procedure used to extend airplane range endurance in one engine inoperative flight there are a few models that permit crossfeed as a normal fuel balancing technique in normal operation (fuel distribution adjustment). 12 If one of 12 cells of a lead acid battery dead battery Prevent excessive pressure in tank.
using crossfeed an engine can draw fuel from a fuel tank located in opposite wing
on most multi engine airplanes operation in crossfeed mode an emergency procedure used to extend airplane range endurance in one engine inoperative flight there are a few models that permit crossfeed as a normal fuel balancing technique in normal operation (fuel distribution adjustment). 13 When ac generators are connected in parallel reactive loads are balanced means of Prevent excessive pressure in tank. The energising current the current that controls voltage regulator so it will control voltage to balance reactive loads. 14 In order to produce an alternating voltage of 400 hz number of pairs of poles required in an ac generator running at 6000 rpm Prevent excessive pressure in tank. 400 = (6000/60) x pole pairs
pole pairs = 4. 15 In an ac power generation system constant speed drive csd 1 can be disconnected from engine shaft2 can be disconnected from generator3 a hydro mechanical system4 an electronic system5 can not be disconnected in flight6 can be disconnected in flightthe combination regrouping all correct statements Prevent excessive pressure in tank. The csd unit normally integral with generator therefore disconnect between csd the engine gearbox not between csd the generator therefore it's only csd that can be disconnected from engine gearbox
the disconnect there the purpose of isolating a hydromechanical unit i e it might either be leaking oil overheating or causing load sharing system to do oddball things
if you operate disconnect it will dump generator via csd i e rotational input from engine gearbox removed resolves oil leak/problem. 16 An inverter a Unit used to convert dc into ac. The csd unit normally integral with generator therefore disconnect between csd the engine gearbox not between csd the generator therefore it's only csd that can be disconnected from engine gearbox
the disconnect there the purpose of isolating a hydromechanical unit i e it might either be leaking oil overheating or causing load sharing system to do oddball things
if you operate disconnect it will dump generator via csd i e rotational input from engine gearbox removed resolves oil leak/problem. 17 In an aircraft electrical system where ac generators are not paralleled mounted changeover relay allows Power supply to faulty ac generators busbar. In an ac electrical power system where generators are not paralleled (a split busbar system) only one generator can supply a busbar at any given moment however one generator may supply two (or more) busbars should a generator fail then its busbar would not be powered the changeover relays allow a different generator to supply that busbar in addition to its own. 18 Pulling fire shutoff handle causes a number of devices to disconnect in respect of ac generator it can be said that Exciter control relay the generator breaker open. A control relay a 'magnetic switch' which can isolate a circuit so in effect same as a 'breaker' an 'exciter breaker' an 'exciter control relay' are in effect same thing
an exciter breaker (exciter control relay) will isolate power to voltage regulator
the generator breaker will isolate generator from bus bar
the tie breaker will isolate two different bus bars from each other or can connect two generators to same bus bar
in most cases you will want to keep bus bars connected so that you can use all your services so you will trip generator breaker to isolate generator from bus bar the exciter breaker so you effectively shut down that generator
if you have 2 generators supplying same single bus bar then you will trip tie breaker to isolate generator the generator exciter breakers to isolate shut down generator. 19 On ground auxiliary power unit apu can provide 1 electricity2 air starting system3 hydraulic pressure4 air air conditioningthe combination which regroups all of correct statements Exciter control relay the generator breaker open. The primary purpose of an aircraft apu to provide power to start main engines turbine engines must be accelerated to a high rotational speed in order to provide sufficient air compression self sustaining operation smaller jet engines are usually started an electric motor while larger engines are usually started an air turbine motor before engines are to be turned apu started generally a battery once apu running it provides power (electric or pneumatic depending on design) to start aircraft's main engines
apus are also used to run accessories while engines are shut down this allows cabin to be comfortable while passengers are boarding before aircraft's engines are started electrical power used to run systems preflight checks
for information some apus are also connected to a hydraulic pump allowing crews to operate hydraulic equipment but the learning objectives apu not considered as a power source hydraulic pressure. 20 A thermal circuit breaker Protects system in event of overload/overheating. The primary purpose of an aircraft apu to provide power to start main engines turbine engines must be accelerated to a high rotational speed in order to provide sufficient air compression self sustaining operation smaller jet engines are usually started an electric motor while larger engines are usually started an air turbine motor before engines are to be turned apu started generally a battery once apu running it provides power (electric or pneumatic depending on design) to start aircraft's main engines
apus are also used to run accessories while engines are shut down this allows cabin to be comfortable while passengers are boarding before aircraft's engines are started electrical power used to run systems preflight checks
for information some apus are also connected to a hydraulic pump allowing crews to operate hydraulic equipment but the learning objectives apu not considered as a power source hydraulic pressure. Exclusive rights: Content under private and protected license, reproduction prohibited and prosecuted.
