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United 737 Systems Validation Study Guide (26 July 2021) > Flight Controls > Flashcards

Flight Controls Flashcards

1
Q
  1. At radio altitudes less than _________do not deploy the speed brakes in flight.
A
  1. At radio altitudes less than _________do not deploy the speed brakes in flight.

• 1,000 feet

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2
Q
  1. Full power control to the ailerons is provided by _____________ hydraulic system.
A
  1. Full power control to the ailerons is provided by _____________ hydraulic system.

• Either

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3
Q
  1. If you have a total hydraulic power failure, rotation of the controls wheels _________ positions the ailerons.
A
  1. If you have a total hydraulic power failure, rotation of the controls wheels _________ positions the ailerons.

• mechanically

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4
Q
  1. If you have a jammed spoiler system, force applied to the _____ control wheel provides roll control from the ailerons.
A
  1. If you have a jammed spoiler system, force applied to the _____ control wheel provides roll control from the ailerons.

• Captain’s

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5
Q
  1. If you have a jammed aileron system, force applied to the _____ control wheel provides roll control from the spoilers.
A
  1. If you have a jammed aileron system, force applied to the _____ control wheel provides roll control from the spoilers.

• First Officer’s

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6
Q
  1. If the autopilot is engaged, any ______ trim applied can result in an out of trim condition and an abrupt ________ movement when the autopilot is disconnected.
A
  1. If the autopilot is engaged, any ______ trim applied can result in an out of trim condition and an abrupt ________ movement when the autopilot is disconnected.

• aileron; rolling

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7
Q
  1. When the control wheel is displaced more than approximately ____, spoiler deflection is initiated and the flight spoilers rise on the wing with the up aileron and remain faired on the wing with the down aileron.
A
  1. When the control wheel is displaced more than approximately ____, spoiler deflection is initiated and the flight spoilers rise on the wing with the up aileron and remain faired on the wing with the down aileron.

• 10 degrees

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8
Q
  1. On the 737, __________ Aileron Trim Switch(es) repositions the aileron neutral control position.
A
  1. On the 737, __________ Aileron Trim Switch(es) repositions the aileron neutral control position.

• Movement of both

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9
Q
  1. Looking at the pitch control surfaces, these consist of _______ powered elevators and an _______ powered stabilizer.
A
  1. Looking at the pitch control surfaces, these consist of _______ powered elevators and an _______ powered stabilizer.

• hydraulically; electrically

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10
Q
  1. If you have a control column jam, an override mechanism allows ___________.
A
  1. If you have a control column jam, an override mechanism allows ___________.

• the control columns to be physically separated

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11
Q
  1. If the FEEL DIFF PRESS light Illuminates, this indicates _______.
A
  1. If the FEEL DIFF PRESS light Illuminates, this indicates _______.

• excessive differential hydraulic pressure is sensed in the elevator feel computer

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12
Q
  1. On the 737, engagement and disengagement of the Mach Trim System is accomplished _____________.
A
  1. On the 737, engagement and disengagement of the Mach Trim System is accomplished _____________.

• automatically as a function of airspeed

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13
Q
  1. What has occurred when the MACH TRIM FAIL light is illuminated only when the Master Caution Annunciator recall is activated?
A
  1. What has occurred when the MACH TRIM FAIL light is illuminated only when the Master Caution Annunciator recall is activated?

• a single channel failure of the mach trim system

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14
Q
  1. The Elevator Feel Shift module increases hydraulic system A pressure to the elevator feel and centering unit during a stall. This increases the _________ force to approximately double the normal feel pressure.
A
  1. The Elevator Feel Shift module increases hydraulic system A pressure to the elevator feel and centering unit during a stall. This increases the _________ force to approximately double the normal feel pressure.

• forward control column

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15
Q
  1. There are two modes on the main electric and autopilot stabilizer trim: high speed with flaps _________ and low speed with flaps _________.
A
  1. There are two modes on the main electric and autopilot stabilizer trim: high speed with flaps _________ and low speed with flaps _________.

• extended; retracted

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16
Q
  1. Actuating either pair of stabilizer trim switches ______________, if the autopilot is engaged.
A
  1. Actuating either pair of stabilizer trim switches ______________, if the autopilot is engaged.

• automatically disengages the autopilot

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17
Q
  1. With the stabilizer trim outside the takeoff trim range ___________ if takeoff is attempted.
A
  1. With the stabilizer trim outside the takeoff trim range ___________ if takeoff is attempted.

• An intermittent horn sounds

18
Q
  1. _______________ may be used to return the stabilizer to electrical trim units if manual trim is used to position the stabilizer beyond the electrical trim limits.
A
  1. _______________ may be used to return the stabilizer to electrical trim units if manual trim is used to position the stabilizer beyond the electrical trim limits.

• the stabilizer trim switches

19
Q
  1. The stabilizer trim main electric cutout switch and the stabilizer trim autopilot cutout switch are provided to allow the autopilot or main electrical trim inputs to be ____________________.
A
  1. The stabilizer trim main electric cutout switch and the stabilizer trim autopilot cutout switch are provided to allow the autopilot or main electrical trim inputs to be ____________________.

• disconnected from the single stabilizer trim moto(r)

20
Q
  1. When control column movement opposes the trim direction, what will occur?
A
  1. When control column movement opposes the trim direction, what will occur?

• The control column actuated stabilizer trim cutout switches stop operation of the main electric and autopilot trim

21
Q
  1. Switching the STAB TRIM override switch to OVERRIDE ____________.
A
  1. Switching the STAB TRIM override switch to OVERRIDE ____________.

• electric trim can be used regardless of control column position

22
Q
  1. The speed trim system (STS) is a speed stability augmentation system designed to improve the flight characteristics during any operation with a low gross weight, aft center of gravity, and high thrust when the autopilot _______ engaged.
A
  1. The speed trim system (STS) is a speed stability augmentation system designed to improve the flight characteristics during any operation with a low gross weight, aft center of gravity, and high thrust when the autopilot _______ engaged.

• is not

23
Q
  1. ___________ operates the rudder system.
A
  1. ___________ operates the rudder system.

• Either hydraulic system

24
Q
  1. B737-800, the yaw damper uses the _____________.
A
  1. B737-800, the yaw damper uses the _____________.

• hydraulic system B or standby hydraulic system pressure

25
Q
  1. Above approximately 135 knots, there is a reduction in both hydraulic system A and B pressure. This function limits full rudder authority _____________,.
A
  1. Above approximately 135 knots, there is a reduction in both hydraulic system A and B pressure. This function limits full rudder authority _____________,.

• in flight after takeoff and before landing

26
Q
  1. The rudder pedals permit limited nose gear steering up to ______ degrees each side of center for steering.
A
  1. The rudder pedals permit limited nose gear steering up to ______ degrees each side of center for steering.

• 7

27
Q
  1. Which hydraulic system powers the ground spoilers?
A
  1. Which hydraulic system powers the ground spoilers?

• A

28
Q
  1. When the SPEED BRAKE lever is actuated all of the spoilers will__________.
A
  1. When the SPEED BRAKE lever is actuated all of the spoilers will__________.

• extend on the ground and only the flight spoilers extend when the aircraft is in the air

29
Q
  1. If you use the flight spoilers during a turn ___________.
A
  1. If you use the flight spoilers during a turn ___________.

• greatly increase the roll rate

30
Q
  1. All flight and ground spoilers will automatically rise to the full extension on landing if the speed brake lever is in the ARMED position and __________.
A
  1. All flight and ground spoilers will automatically rise to the full extension on landing if the speed brake lever is in the ARMED position and __________.

• both thrust levers are at IDLE

31
Q
  1. An illuminated SPEED BRAKE DO NOT ARM light indicates ___________.
A
  1. An illuminated SPEED BRAKE DO NOT ARM light indicates ___________.

• an abnormal condition or during landing the wheel speed has dropped below 60kts and the speed brake lever is not in the down position

32
Q
  1. The speedbrake lever _______ position in the 737 indicates all flight spoilers are extended to their maximum position for inflight use, while the ________ indicates all flight and ground spoilers are extended to their maximum position for use on the ground.
A
  1. The speedbrake lever _______ position in the 737 indicates all flight spoilers are extended to their maximum position for inflight use, while the ________ indicates all flight and ground spoilers are extended to their maximum position for use on the ground.

• FLIGHT DETENT; UP

33
Q
  1. In the event of a total hydraulic system B failure, the trailing edge flaps ___________.
A
  1. In the event of a total hydraulic system B failure, the trailing edge flaps ___________.

• can be operated electrically

34
Q
  1. ____________ is provided through the electrical alternate flap drive system.
A
  1. ____________ is provided through the electrical alternate flap drive system.

• No asymmetry or skew protection

35
Q
  1. The Flaps/Slats Electronic Unit (FSEU) monitors trailing edge flaps for _______________. If the Flaps/Slats Electronic Unit (FSEU) detects a trailing edge problem, it_______ the trailing edge flap bypass valve preventing further travel.
A
  1. The Flaps/Slats Electronic Unit (FSEU) monitors trailing edge flaps for _______________. If the Flaps/Slats Electronic Unit (FSEU) detects a trailing edge problem, it_______ the trailing edge flap bypass valve preventing further travel.

• asymmetry and skew conditions; closes

36
Q
  1. The TE flap load relief function protects the flaps from excessive air loads. When the flaps are set to 40 the trailing edge flaps will _______ if airspeed exceeds a predetermined limit.
A
  1. The TE flap load relief function protects the flaps from excessive air loads. When the flaps are set to 40 the trailing edge flaps will _______ if airspeed exceeds a predetermined limit.

• retract to 30

37
Q
  1. Why are there mechanical Flap Gates positioned at the flaps 1 and flaps 15 detent?
A
  1. Why are there mechanical Flap Gates positioned at the flaps 1 and flaps 15 detent?

• for single engine and normal go-around

38
Q
  1. Where would a TE flaps asymmetry error or skew indication issue be seen?
A
  1. Where would a TE flaps asymmetry error or skew indication issue be seen?

• The Flap Position Indicator

39
Q
  1. The 737 Leading edge devices are normally extended and retracted by ___________.
A
  1. The 737 Leading edge devices are normally extended and retracted by ___________.

• hydraulic power from system B

40
Q
  1. The 737 Leading edge devices _______ be retracted by the standby hydraulic system.
A
  1. The 737 Leading edge devices _______ be retracted by the standby hydraulic system.

• cannot

41
Q
  1. At flaps 1, the Auto Slat system _____________ as the aircraft approaches a stall condition.
A
  1. At flaps 1, the Auto Slat system _____________ as the aircraft approaches a stall condition.

• automatically drives the slats to FULL EXTEND

42
Q
  1. An amber illuminated Leading Edge Devices Transit (LE FLAP TRANSIT) Light, indicates _________.
A
  1. An amber illuminated Leading Edge Devices Transit (LE FLAP TRANSIT) Light, indicates _________.

• a LE slat skew condition exists
• any LE device is in transit, or is not in its programmed position with respect to the trailing edge flaps

United 737 Systems Validation Study Guide (26 July 2021) (14 decks)

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