Aircraft Systems - Flight Controls Overview elevators
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Questions and Answers

What is the function of spoilers in an aircraft's flight control system?

  • Reduce lift (correct)
  • Enhance roll stability
  • Increase lift
  • Stabilize yaw

    • In the context of the flight control system, what do the abbreviations 'PRIM' and 'SEC' refer to?

  • Primary and Secondary ailerons
  • Primary and Secondary flight paths
  • Primary and Secondary hydraulic systems
  • Primary and Secondary computers (correct)

    • Which component is NOT directly responsible for controlling yaw?

  • Spoilers
  • Elevators (correct)
  • Ailerons
  • Rudders

    • How do hydraulic motors contribute to the flight control system?

    <p>They serve as power sources for flight controls</p> Signup and view all the answers

    Which component acts primarily as a load alleviation system?

    <p>MLA</p> Signup and view all the answers

    What do the arrows in the flight control system diagram represent?

    <p>Signal and command flow</p> Signup and view all the answers

    What is the maximum deflection of the elevators in the A330 aircraft?

    <p>30° nose up and 15° nose down</p> Signup and view all the answers

    Which system takes over if both PRIM 1 and PRIM 2 fail?

    <p>SEC 1 for elevator control and PRIM 3 for THS control</p> Signup and view all the answers

    What happens to THS control in case of failure of all PRIMs?

    <p>Electrical control of the THS is lost but manual pitch trim remains</p> Signup and view all the answers

    Which hydraulic jacks does PRIM 2 utilize for elevator control if Prim one fails ?

    <p>Blue and yellow hydraulic jacks</p> Signup and view all the answers

    What is the maximum deflection for the THS in the A330?

    <p>14° nose up and 2° nose down</p> Signup and view all the answers

    What happens to the elevator control system when there is a 3 PRIM failure?

    <p>SEC 1 takes over control of the elevator.</p> Signup and view all the answers

    Which method allows for THS actuation after a PRIM failure?

    <p>Manual pitch trim wheel control.</p> Signup and view all the answers

    What is lost during the 3 PRIM failure scenario concerning THS?

    <p>Electrical control of THS.</p> Signup and view all the answers

    In the event of a 3 PRIM failure, which component retains control over the elevator?

    <p>SEC 1.</p> Signup and view all the answers

    Which of the following accurately describes the availability of THS control after a 3 PRIM failure?

    <p>Manual pitch trim wheel control allows THS actuation.</p> Signup and view all the answers

    What mechanism allows for mechanical control of the THS at any time?

    <p>The pitch trim wheel</p> Signup and view all the answers

    Which hydraulic systems must be operational for mechanical control from the pitch trim wheel?

    <p>Either the blue or yellow hydraulic system</p> Signup and view all the answers

    What takes priority over electrical control when both are available?

    <p>Mechanical control via pitch trim wheel</p> Signup and view all the answers

    Under what circumstance can mechanical control from the pitch trim wheel not be available .

    <p>If both hydraulic systems are inoperative</p> Signup and view all the answers

    Which of the following is NOT true regarding mechanical control of the THS?

    <p>It provides secondary control to electrical systems</p> Signup and view all the answers

    Which control mode allows a jack to maintain a neutral position without electrical input?

    <p>Centering</p> Signup and view all the answers

    What mode does the servojack switch to if the active servojack fails?

    <p>Damping</p> Signup and view all the answers

    Under what condition do both jacks automatically switch to damping mode?

    <p>When neither jack is controlled electrically nor hydraulically</p> Signup and view all the answers

    What component drives the stabilizer?

    <p>A screwjack driven by hydraulic motors</p> Signup and view all the answers

    Which system can control the hydraulic motors of the stabilizer?

    <p>One of three electric motors or a mechanical trim wheel</p> Signup and view all the answers

    What happens to all four elevator jacks if they are not controlled electrically?

    <p>They switch to the centering mode.</p> Signup and view all the answers

    What is the function of centering mode in flight control?

    <p>To maintain a neutral position without electrical input.</p> Signup and view all the answers

    Which of the following statements about the jacks is true?

    <p>They automatically switch to centering mode if not electrically controlled.</p> Signup and view all the answers

    What is the state of the jacks when electrical control is unavailable?

    <p>They switch to centering mode.</p> Signup and view all the answers

    What is indicated by the automatic switching of jacks to centering mode?

    <p>There is a loss of electrical control.</p> Signup and view all the answers

    Study Notes

    Aircraft Systems - Flight Controls

    • Diagram depicts the architecture of flight control systems
    • Shows various components and their connections
    • Identifies different control surfaces (ailerons, spoilers, spoilers, rudders)
    • Displays hydraulic and electric motor connections
    • Indicates different computer systems (PRIM, SEC)
    • Shows how different components contribute to control functions
    • Labels include "SPD-BRK," "GND-SPLR," "MLA," "ROLL," "AILERONS," "SPOILERS," "RUDDER," "THS HYDRAULIC MOTORS," “ELECTRICAL MOTORS”
    • Abbreviations for various components and systems are used throughout.
    • Different colours are used for different components and connections.

    Component Descriptions

    • PRIM and SEC computers are key components in the control system
    • Arrows indicate the control reconfiguration priorities
    • MLA - Maneuver load alleviation
    • BCM - Backup control module
    • BPS - Backup power supply

    Additional Information

    • Components and systems involved in the operation of the aircraft are indicated
    • Diagram shows the connections between different systems
    • The document appears to be part of a larger technical manual

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    Description

    This quiz delves into the architecture and components of aircraft flight control systems. It covers control surfaces, computer systems, and the interconnections that govern flight control functionality. Understanding these systems is crucial for aerospace engineering and aircraft operations.

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