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United Airlines > Flight Controls > Flashcards

Flight Controls Flashcards

1
Q

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

A

1,000 feet

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2
Q

Full power control to the ailerons is provided by _____________ hydraulic system.

A

Either

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3
Q

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

A

mechanically

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4
Q

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

A

Captain’s

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5
Q

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

A

First Officer’s

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6
Q

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

aileron; rolling

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7
Q

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

10 degrees

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8
Q

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

A

Movement of both

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9
Q

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

A

hydraulically; electrically

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10
Q

If you have a control column jam, an override mechanism allows ___________.

A

the control columns to be physically separated

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11
Q

If the FEEL DIFF PRESS light Illuminates, this indicates _______.

A

excessive differential hydraulic pressure is sensed in the elevator feel computer

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12
Q

On the 737, engagement and disengagement of the Mach Trim System is accomplished _____________.

A

automatically as a function of airspeed

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13
Q

What has occurred when the MACH TRIM FAIL light is illuminated only when the Master Caution Annunciator
recall is activated?

A

a single channel failure of the mach trim system

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14
Q 
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

forward control column

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15
Q

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

A

extended; retracted

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16
Q

Actuating either pair of stabilizer trim switches ______________, if the autopilot is engaged.

A

automatically disengages the autopilot

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17
Q

With the stabilizer trim outside the takeoff trim range ___________ if takeoff is attempted.

A

An intermittent horn sounds

18
Q

_______________ 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

the stabilizer trim switches

19
Q

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

disconnected from the single stabilizer trim moto

20
Q

When control column movement opposes the trim direction, what will occur?

A

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

21
Q

Switching the STAB TRIM override switch to OVERRIDE ____________.

A

electric trim can be used regardless of control column position

22
Q

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

is not

23
Q

___________ operates the rudder system.

A

Either hydraulic system

24
Q

B737-800, the yaw damper uses the _____________.

A

hydraulic system B or standby hydraulic system pressure

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

in flight after takeoff and before landing

26
Q

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

A

7

27
Q

Which hydraulic system powers the ground spoilers?

A

A

28
Q

When the SPEED BRAKE lever is actuated all of the spoilers will__________.

A

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

29
Q

If you use the flight spoilers during a turn ___________.

A

greatly increase the roll rate

30
Q

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

both thrust levers are at IDLE

31
Q

An illuminated SPEED BRAKE DO NOT ARM light indicates ___________.

A

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

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

FLIGHT DETENT; UP

33
Q

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

A

can be operated electrically

34
Q

____________ is provided through the electrical alternate flap drive system.

A

No asymmetry or skew protection

35
Q

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

asymmetry and skew conditions; closes

36
Q

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

retract to 30

37
Q

Why are there mechanical Flap Gates positioned at the flaps 1 and flaps 15 detent?

A

for single engine and normal go-around

38
Q

Where would a TE flaps asymmetry error or skew indication issue be seen?

A

The Flap Position Indicator

39
Q

The 737 Leading edge devices are normally extended and retracted by ___________.

A

hydraulic power from system B

40
Q

The 737 Leading edge devices _______ be retracted by the standby hydraulic system.

A

cannot

41
Q

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

A

automatically drives the slats to FULL EXTEND

42
Q

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

A
  • 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 Airlines (16 decks)

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