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 (B)</p> Signup and view all the answers

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

<p>Flight Augmentation Computers (A)</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 (C)</p> Signup and view all the answers

What initiates pitch trimming in the autopilot?

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

What is the effect of differential aileron control?

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

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

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

What is the purpose of automatic angle of attack protection?

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

When does the autotrim switch to 'slow' mode?

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

How is the stabilizer automatically controlled in normal manual operation?

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

What device provides spoiler position feedback?

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

What is the purpose of rudder 'Q' limiting?

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

What functions do elevons combine?

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

What is the purpose of a differential aileron system?

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

When is an artificial feel system required?

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

What is the purpose of control cable regulators?

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

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

<p>Elevator (D)</p> Signup and view all the answers

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

<p>Rudder (C)</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 (B)</p> Signup and view all the answers

What is the function of a stick shaker?

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

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

<p>Ailerons (B)</p> Signup and view all the answers

How do ruddervators move when actuated?

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

How is an anti-balance tab operated?

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

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

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

What moves during an autopilot controlled turn?

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

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

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

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

<p>Flight control computer (B)</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 (B)</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 (C)</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 (A)</p> Signup and view all the answers

Which type of flap extends rearwards when lowered?

<p>Fowler flap (C)</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 (A)</p> Signup and view all the answers

Which control is not classified as a primary flying control?

<p>Tailplane (A)</p> Signup and view all the answers

What combines with spoilers when used asymmetrically?

<p>Ailerons (C)</p> Signup and view all the answers

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

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

Which trailing edge flaps provide an increase in wing area?

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

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

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

When do stick shakers operate?

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

Which system provides irreversibility of a fully powered control surface?

<p>Nulling of the servo valve (D)</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 (D)</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 (C)</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 (A)</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 (B)</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 (D)</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 (D)</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 (C)</p> Signup and view all the answers

How are spoiler panels controlled?

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

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

<p>Prevent inadvertent operation (B)</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 (C)</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 (C)</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 (A)</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 (B)</p> Signup and view all the answers

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