Exam 3 Final Review Flashcards
(73 cards)
purpose of aircraft fuel system
deliver fuel to engines safely under a wide range of operational conditions
what should the aircraft fuel system monitor
quantity of fuel, check fuel pressures, temperatures, flow rates
Reliability of aircraft fuel systems
Piston: will not result in power interruption for more than 20 seconds
Turbine: will not cause flameout
fuel system independence
fuel system for one engine will not affect another engine
isolation of different fuel lines
gravity fed fuel system
uses force of gravity for fuel flow
has a both option
Pressure feed fuel system
uses boost pump to move fuel
tanks too low to provide adequate pressure
Fuel pump purpose
move fuel through fuel system when gravity flow is insufficient
provide positive pressure to eliminate vapor lock
Integral fuel tank
sealed with fuel proof compounds
wet wing
manufactured when aircraft is built
bladder fuel tank
rubberized synthetic bag
aircraft structure supports weight
fuel strain and filter
removes foreign materials from fuel system
what three points does a strainer strain from
bottom of fuel tank
lowest point in fuel system
near fuel control unit
fuel selector valve purpose
shutoff flow
select tank
transfer fuel
direct fuel
purpose of grounding (static bonding) during refueling
prevent static discharge and possible explosions
fuel sump vs fuel drain
sump: low point in tank for collection of water and sediment
drain: low point of sump for draining water and sediment
what is a cross feed system
supply any engine from any tank
what is the fuel jettison system
dumps fuel overboard in event of an inflight emergency
when is the jettison system required
when takeoff weight is greater than 105% of the certified landing weight
when are rigid fuel lines used
metal tubing
stationary applications where long and straight runs are possible
Class A fire compartment
crew and passenger area
fire may be visually detected, reached and combatted by flight crew
Class B fire compartment
cargo and baggage
access for a crew member to reach all areas and combat
what do both class A and B compartments have
smoke or fire detector
class C fire compartment
inaccessible compartments
fire detection/fighting done by remote sensors and fire control
class D fire compartment
inaccessible cargo and baggage
fire confined to area, crew may not know it is happening
class E fire compartment
cargo aircraft cargo area
Must have:
smoke/fire detector
shutoff air flow ability
controllability form flight deck
ability to isolate smoke or flames from flight deck
