Flowmeter Output and High-Pressure Fuel Filter Quiz

Steady running state, smooth maximum rate accelerations, rapid deceleration without risking combustion chamber flameout

It specifies the fuel requirement for a given rpm

It initially gives rise to a back pressure which restricts compressor air delivery

<p>Acceleration ceases when the engine stabilizes at the steady state demand line</p> Signup and view all the answers

<p>It reduces the available energy in the gas stream, causing the engine to decelerate</p> Signup and view all the answers

<p>Sufficient fuel flow must be maintained to avoid flameout</p> Signup and view all the answers

<p>To allow over fueling during acceleration or under fueling during deceleration as required.</p> Signup and view all the answers

<p>8%</p> Signup and view all the answers

<p>From the Low-Pressure (LP) fuel pump.</p> Signup and view all the answers

<p>To measure differential pressure across the LP fuel filter and the absolute pressure of the fuel supply to the HP pump.</p> Signup and view all the answers

<p>To measure the differential pressure across the FRTT mounting and provide the oil filter differential pressure measurement for the engine oil system.</p> Signup and view all the answers

<p>To display a maintenance message in the cockpit indicating complete blockage of the filter and the filter bypass valve fully open.</p> Signup and view all the answers

<p>The FMU meters the fuel required by the engine in response to control signals generated by the EEC.</p> Signup and view all the answers

<p>Positive fuel flow is obtained when the aircraft fuel control switch is in the 'ON' position and both Independent Overspeed Protection (IOP) channels for that engine are not demanding engine shutdown.</p> Signup and view all the answers

<p>During deceleration, the EEC command to increase fuel flow causes the EHSV to direct HP servo fuel to the Fuel Metering Valve (FMV) bottom piston, allowing it to open.</p> Signup and view all the answers

<p>Engine shutdown is achieved by the EEC and FMU through fuel switch command, COSS 'OFF' solenoid energizing, and manual closing and opening of the PRSOV using solenoid coils.</p> Signup and view all the answers

<p>The fuel switch is manually selected by the pilot to either the 'OFF' or 'ON' position and interfaces with both the EEC and the FMU to close and open the PRSOV using solenoid coils and indicate the switch position to the EEC.</p> Signup and view all the answers

<p>The Fuel Flow Transmitter provides an indication of engine fuel flow to the Engine Instruments and Crew Alerting System (EICAS) system.</p> Signup and view all the answers

<p>To deliver metered fuel into the combustion chamber in a pattern suitable for maximum combustion efficiency.</p> Signup and view all the answers

<p>The fuel is forced through a narrow circumferential orifice and mixes with HP delivery air on exit, causing it to become atomized.</p> Signup and view all the answers

<p>The back pressure in the combustor chamber forces the fuel out of the fuel burner nozzles and manifold in reverse direction, and it is collected in the drains tank.</p> Signup and view all the answers

<p>Digital readings of engine fuel flow and two pointer arrows to indicate the difference in fuel flow between the two engines.</p> Signup and view all the answers

<p>Minimum: -40°C, Maximum Unrestricted: +140°C, Maximum (15 Minute) Transient: +165°C</p> Signup and view all the answers

<p>To produce an electrical spark to ignite the fuel-air mixture in the combustion system.</p> Signup and view all the answers

<p>To provide an electrical signal representative of the fuel delivery temperature at the FCOC fuel outlet.</p> Signup and view all the answers

<p>250 micron</p> Signup and view all the answers

<p>To allow fuel to be purged through the manifold segments in reverse direction from the fuel nozzles through the OSU into the drains tank.</p> Signup and view all the answers

<p>Stainless steel</p> Signup and view all the answers

<p>To provide fuel distribution to 20 fuel nozzles by supplying HP fuel from the OSU to 10 fuel spray nozzles on the upper half and 10 on the lower half of the engine.</p> Signup and view all the answers

<p>By dividing the engine metered fuel flow equally between the upper and lower burner manifold segments.</p> Signup and view all the answers

<p>Equalize igniter plug usage and ensure no dormant faults exist</p> Signup and view all the answers

<p>When water ingestion or a surge I stall is detected</p> Signup and view all the answers

<p>By using internal voltage and current monitors</p> Signup and view all the answers

<p>Input EMI Filter, Power Control Section, Discharge Section</p> Signup and view all the answers

<p>Filters out high-frequency elements and prevents contamination of the aircraft DC power supply</p> Signup and view all the answers

<p>As a capacitive discharge pulse of energy</p> Signup and view all the answers

<p>To bleed off power from the capacitor when the power supply is removed</p> Signup and view all the answers

<p>Inner wire conductor: current routing from the ignition unit to the igniter plug, Outer conductor: current routing from the igniter plug back to the ignition unit case</p> Signup and view all the answers

<p>Protection for the flexible conduit and conductors</p> Signup and view all the answers

<p>To route the inner and outer conductors and provide flexibility</p> Signup and view all the answers