Aircraft Systems Quiz Questions
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Questions and Answers

What is the purpose of varying lift force to control the vertical movement of an aircraft?

  • Intervention and monitoring the human pilot
  • Controlling the elevator and aileron
  • Controlling the elevator and stabilizer
  • Controlling the vertical movement of the aircraft (correct)

    • What is used for active load control in an aircraft?

  • Elevator and aileron
  • Flaps and slats
  • Aileron and spoiler (correct)
  • Elevator and stabilizer

    • What is the purpose of the autopilot servo-motor torque setting?

  • To prevent control surface runaway (correct)
  • To protect the servo motor
  • To damp the system oscillation
  • To adjust the autopilot sensitivity

    • When are ground spoilers deployed automatically in a fully Fly By Wire Aircraft?

    <p>When thrust reversers are deployed</p> Signup and view all the answers

    What nulls the rudder trim in a fully Fly By Wire aircraft?

    <p>Flight Augmentation Computers</p> Signup and view all the answers

    Why is aileron input fed into the yaw damper system?

    <p>To prevent adverse yaw in a turn</p> Signup and view all the answers

    What initiates pitch trimming in the autopilot?

    <p>Continued pitch input</p> Signup and view all the answers

    What is the effect of differential aileron control?

    <p>Prevents yawing in conjunction with rudder input</p> Signup and view all the answers

    What controls stabilizer trim in a fly-by-wire aircraft?

    <p>ELAC and SEC</p> Signup and view all the answers

    When may the yaw damper be applied in an automatic flight control system?

    <p>During either manual or automatic control</p> Signup and view all the answers

    What is the purpose of automatic angle of attack protection?

    <p>Autothrottle applying more power</p> Signup and view all the answers

    What is the effect of a single failure in a fly-by-wire system?

    <p>Has no effect on the aircraft's operation</p> Signup and view all the answers

    What is the result of the fly-by-wire load alleviation function in turbulent weather conditions?

    <p>Ailerons and spoiler moving symmetrically upward</p> Signup and view all the answers

    When does the autotrim switch to 'slow' mode?

    <p>When the flaps are retracted</p> Signup and view all the answers

    How is the stabilizer automatically controlled in normal manual operation?

    <p>Mach/Speed Trim</p> Signup and view all the answers

    What device provides spoiler position feedback?

    <p>A Rotary Variable Differential Transformer (R.V.D.T.)</p> Signup and view all the answers

    What is the purpose of rudder 'Q' limiting?

    <p>Restricts rudder movement with increase in airspeed</p> Signup and view all the answers

    What functions do elevons combine?

    <p>Elevator and aileron</p> Signup and view all the answers

    What is the purpose of a differential aileron system?

    <p>Prevent adverse yaw</p> Signup and view all the answers

    When is an artificial feel system required?

    <p>For power operated control systems</p> Signup and view all the answers

    What is the purpose of control cable regulators?

    <p>Maintain preset cable tensions during flight</p> Signup and view all the answers

    What limits the range of movement of power-operated flying control surfaces?

    <p>Mechanical stops in the control system</p> Signup and view all the answers

    Which control surface is used to control the aircraft about the lateral axis?

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

    Which control surface is used to control the aircraft about the normal axis?

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

    What is the purpose of the servo valve in a power-operated control system?

    <p>To direct hydraulic fluid to the jack in response to the pilot's control in the cockpit</p> Signup and view all the answers

    What is the function of a stick shaker?

    <p>Vibrates the control column near stalling speed</p> Signup and view all the answers

    Which control surface is used to control the aircraft about the longitudinal axis?

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

    How do ruddervators move when actuated?

    <p>Either opposite each other or together, depending on the selection</p> Signup and view all the answers

    What is the effect on stick forces when the center of gravity is close to the aft limit?

    <p>The stick forces when pitching the nose down will be very high</p> Signup and view all the answers

    How is an anti-balance tab operated?

    <p>Via a fixed linkage</p> Signup and view all the answers

    What movement does a wing mounted stall warning vane make at impending stall?

    <p>Moves down</p> Signup and view all the answers

    What moves during an autopilot controlled turn?

    <p>Ailerons, rudder, and elevators</p> Signup and view all the answers

    In a full fly-by-wire system, what controls the speedbrake screwjack servomotor?

    <p>Flight control computer</p> Signup and view all the answers

    Who controls the roll spoilers in a fly-by-wire aircraft?

    <p>Flight control computer</p> Signup and view all the answers

    What is the purpose of mass balance weights on aircraft control surfaces?

    <p>Balance the trailing edge of flying control surfaces</p> Signup and view all the answers

    What is involved in active load control on aircraft?

    <p>Limiting the deflection of control surface with airspeed</p> Signup and view all the answers

    What assists the pilot to move a flying control by moving automatically in the opposite direction to the control surface?

    <p>Geared balance tab</p> Signup and view all the answers

    Which type of flap extends rearwards when lowered?

    <p>Fowler flap</p> Signup and view all the answers

    What is used to reduce the aircraft's speed rapidly during severe turbulence or when speed tends to exceed limits?

    <p>Air brakes</p> Signup and view all the answers

    Which control is not classified as a primary flying control?

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

    What combines with spoilers when used asymmetrically?

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

    What is used to correct undesirable flight attitudes in the aircraft?

    <p>Trim tabs</p> Signup and view all the answers

    Which trailing edge flaps provide an increase in wing area?

    <p>Fowler flap</p> Signup and view all the answers

    What type of actuator transmits pilot input to the control surfaces?

    <p>Powered flying control actuator</p> Signup and view all the answers

    When do stick shakers operate?

    <p>Just before the stall</p> Signup and view all the answers

    Which system provides irreversibility of a fully powered control surface?

    <p>Nulling of the servo valve</p> Signup and view all the answers

    What is the effect of extending the right spoiler while keeping the left spoiler retracted?

    <p>The aircraft rolls to the right</p> Signup and view all the answers

    If the aileron trim control is moved to counteract a tendency to fly left wing low, what will happen to the ailerons?

    <p>The left aileron will move down, and the right aileron will move down to a lesser degree</p> Signup and view all the answers

    If the elevator trim tab is adjusted to correct for a nose-heavy condition, what will be the direction of travel of the trim tab?

    <p>The trim tab will move down</p> Signup and view all the answers

    What type of material are pulleys in a flight control system typically made from?

    <p>Tufnol or aluminum alloy</p> Signup and view all the answers

    What is the primary purpose of a tension regulator in the flight control cable system of a large all-metal aircraft?

    <p>To retain a set tension in the cables</p> Signup and view all the answers

    What is the purpose of an interrupter arm incorporated in a flying control locking mechanism?

    <p>To restrict movement of the throttles</p> Signup and view all the answers

    What is the purpose of a differential aileron control system?

    <p>Aileron drag being reduced on the outer wing in a turn</p> Signup and view all the answers

    How are spoiler panels controlled?

    <p>The aileron control wheel and speed brake lever</p> Signup and view all the answers

    Where is a lift transducer normally fitted on an aircraft?

    <p>On the leading edge of the wing</p> Signup and view all the answers

    What happens to spoiler panels in a fly-by-wire system if electrical power is removed?

    <p>Go to down if any are not already down</p> Signup and view all the answers

    In a fly-by-wire control system, where is the follow-up transducer fitted?

    <p>The hydraulic actuator</p> Signup and view all the answers

    Why is the down position of the speed brake lever detented?

    <p>Prevent inadvertent operation</p> Signup and view all the answers

    To prevent rolling, asymmetric flap operation is designed to keep to a minimum the tendency of what?

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

    When is high thrust stall warning activated in an aircraft?

    <p>Greater than 75% thrust of opposite engine</p> Signup and view all the answers

    What does a differential aileron control provide in terms of aileron travel?

    <p>A larger aileron up travel than down</p> Signup and view all the answers

    What occurs when the control column is moved back and the hand-wheel turned to the left?

    <p>The left aileron moves up and the elevators move up</p> Signup and view all the answers

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