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Questions and Answers

What is the function of the Overspeed Valve in the engine shutdown process?

  • It automatically shuts down the auxiliary power unit.
  • It reduces the engine thrust during takeoff.
  • It closes the PRSOV to cut off the fuel supply. (correct)
  • It increases the fuel supply to maintain engine power.
  • What occurs if one of the logic circuits within the LPTOS becomes defective?

  • The engine will continue to operate normally.
  • The PRSOV will remain open until manually closed.
  • The LPTOS circuits are disarmed to prevent incorrect operation. (correct)
  • All automatic tests will be disabled.
  • During which phase does the EEC conduct an automatic test of the LPTOS protection?

  • During taxiing procedures.
  • Before engine shutdown.
  • Before light up during ground engine start. (correct)
  • During descent.
  • What is the primary purpose of the turbine overspeed and overheat detection system?

    <p>To reduce engine thrust and trigger warnings when temperatures exceed limits.</p> Signup and view all the answers

    Which component provides feedback to the EEC regarding the closure of the PRSOV?

    <p>Position switches.</p> Signup and view all the answers

    How does the EEC ensure that the starting sequence is not impacted during the auto test?

    <p>By canceling the test signal almost immediately.</p> Signup and view all the answers

    What are the two positions monitored by the EEC to ensure proper operation of the PRSOV?

    <p>Open and closed.</p> Signup and view all the answers

    What triggers the EEC to reduce engine thrust when temperatures exceed the specified limit?

    <p>Temperature readings from the turbine disk cooling air.</p> Signup and view all the answers

    What is the primary function of the fuel filter differential pressure switch in the RR Trent 700 engine fuel system?

    <p>To detect impending fuel filter clogging</p> Signup and view all the answers

    How does the EEC respond to a detected low fuel pressure in the RR Trent 700 engine fuel system?

    <p>By triggering a class 2 fault message</p> Signup and view all the answers

    Which engine parameters does the Engine Electronic Controller (EEC) protect under limit protection?

    <p>N1, N2, and N3 shaft speeds</p> Signup and view all the answers

    What indication does the cockpit receive when the fuel filter is clogged in the RR Trent 700 system?

    <p>Amber 'CLOG' indication near FUEL USED</p> Signup and view all the answers

    During the engine motoring procedure, which component is primarily responsible for adjusting fuel flow based on the engine's operational state?

    <p>Engine Electronic Controller (EEC)</p> Signup and view all the answers

    What technique is commonly used during wet motoring to ensure adequate fuel delivery for engine tests?

    <p>Utilization of an external fuel pump</p> Signup and view all the answers

    When ensuring safety mechanisms during engine start, which component primarily monitors fuel filter conditions?

    <p>Fuel low-pressure switch</p> Signup and view all the answers

    Which fault message is typically associated with problems detected by the fuel low-pressure switch?

    <p>Class 2 fault message</p> Signup and view all the answers

    What happens to the PRSOV when the ENGine MASTER switch is turned OFF?

    <p>The PRSOV is directly controlled to close.</p> Signup and view all the answers

    Which component is responsible for closing the LP fuel valve during engine shutdown?

    <p>The ENGine FIRE P/B controls the LP fuel valve.</p> Signup and view all the answers

    What is the purpose of the dump valve during the shutdown process?

    <p>To drain the remaining fuel to the drain tank.</p> Signup and view all the answers

    What aids in the hydraulic closure of the PRSOV during engine shutdown?

    <p>Spring force combined with shut-off servo pressure.</p> Signup and view all the answers

    What role does the microswitch play in the functioning of the PRSOV?

    <p>It indicates the closed position of the PRSOV to the EEC.</p> Signup and view all the answers

    During normal engine shutdown, which mechanism ensures the operator can shut down the engine despite any EEC commands?

    <p>The direct control of the fuel shut-off TM.</p> Signup and view all the answers

    Which system is directly affected when the ENGine FIRE P/B is activated?

    <p>The LP fuel valve.</p> Signup and view all the answers

    What is the initial action taken when the ENGine MASTER switch is turned OFF?

    <p>The fuel shut-off TM commands the PRSOV to close.</p> Signup and view all the answers

    Study Notes

    CFM56/V2500 RR Trent 700 Training Manual

    • This manual is for training purposes only
    • The manual contains information about the A330-200/300, A318/A319/A320/A321 RR Trent 700
    • It details various differences from the A318/A319/A320/A321.
    • The manual is not updated.
    • Revision 1, dated 01.06.2019, by Deviation Training Services

    General

    • Power Plant Installation D/O (3): page 2
    • Nacelle D/O (3): page 30
    • Engine D/O (3): page 48
    • Engine Fuel System D/O (3): page 76
    • Engine Limit Protection D/O (3): page 106
    • Full Authority Digital Engine Control (FADEC):
      • Principle (3): page 116
      • D/O (3): page 124

    General - Continued

    • FADEC Power Supply D/O (3): page 168
    • Power Plant RR Trent 700 Component Location (2): page 174
    • Engine System Control & Indicating (2): page 206
    • Ignition and Starting D/O (3): page 208
    • Airflow Control System D/O (3): page 276
    • Engine Cooling System D/O (3) : page 286
    • Thrust Control D/O (3): page 296
    • Engine Master Control D/O (3): page 312
    • Vibration Monitoring System D/O (3): page 318
    • Thrust Reverser System D/O (3): page 324
    • Oil System D/O (3): page 362
    • Power Plant System Line Maintenance (2): page 408
    • Engine Base Maintenance (3): page 440
    • Table of Contents, A330 RR Trent 700 Technical Training Manual

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