Book 3 - Engine LP Fuel System Flashcards
the LP fuel system is there to _______ the fuel for use by the HP (engine) system
the LP fuel system is there to PREPARE the fuel for use by the HP (engine) system
the LP system will prepare fuel for the HP system by ________ the fuel, to prevent formation of ice crystals and _________ the fuel to ensure its cleanliness
the LP system will prepare fuel for the HP system by HEATING the fuel, to prevent formation of ice crystals and FILTERING the fuel to ensure its cleanliness
although installed on the airframe, the LP ____ is considered part of the ______ LP system
although installed on the airframe, the LP COCK is considered part of the ENGINE LP system
the LP cock is a ____ type valve, rotated mechanically or electrically through __ degrees to isolate or connect the engine system to the airframe system
the LP cock is a BALL type valve, rotated mechanically or electrically through 90 degrees to isolate or connect the engine system to the airframe system
the ____ ______ ___ ______ (FCOC) is a radiator-type matrix designed to cool the oil and heat the fuel at the same time.
the oil will be ____ highly pressurised than the fuel to prevent contamination
as a minimum requirement, there will be a temperature transducer at the ______ from the heater/cooler sending a signal to a indicator on the ______ ____
the FUEL COOLED OIL COOLER (FCOC) is a radiator-type matrix designed to cool the oil and heat the fuel at the same time.
the oil will be MORE highly pressurised than the fuel to prevent contamination
as a minimum requirement, there will be a temperature transducer at the OUTLET from the heater/cooler sending a signal to a indicator on the FLIGHT DECK
the LP fuel ______ is used to provide clean fuel for the HP system.
usually a felt, or ______, type element filter cleaning to __ microns
unusual to have bypass facility so differential _______ switch fitted in parallel and LP fuel ___ pressure warning switch provide indications on the flight deck
the LP fuel FILTER is used to provide clean fuel for the HP system.
usually a felt, or PAPER, type element filter cleaning to 10 microns
unusual to have bypass facility so differential PRESSURE switch fitted in parallel and LP fuel LOW pressure warning switch provide indications on the flight deck
fuel flow _________ informs crew of rate at which fuel is being used so that correlation with tank gauges can be made
common types are rotating ____, ____ flow and the rotor-_____ types
fitted in _____ with the LP fuel flow
fuel flow returning from HP system must re-enter _____ the FFM to avoid being counted _____
fuel flow TRANSMITTER informs crew of rate at which fuel is being used so that correlation with tank gauges can be made
common types are rotating VANE, MASS flow and the rotor-TORQUE types
fitted in SERIES with the LP fuel flow
fuel flow returning from HP system must re-enter AFTER the FFT to avoid being counted TWICE
