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KV Prep > Flight Controls > Flashcards

Flight Controls Flashcards

1
Q

Which hydraulic system power the flight controls?

A

All 3

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2
Q

What is the rudder travel limiter?

A

The rudder travel limiter restricts rudder movement to prevent excessive tail loading at high speeds. It receives airspeed inputs from the air data computers, and the slat flap electronic control unit.

Rudder travel will be restricted from 33* to 4* based on flap position and airspeed

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3
Q

What provides gust lock protection on the ground?

A

Residual hydraulic pressure trapped by check valves in the PCUs

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4
Q

Which control wheel is the autopilot roll servo connected to?

A

First Officer

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5
Q

Which control column is the autopilot pitch servo connected to?

A

The captains

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6
Q

What indications will be present with a PCU runaway ?

A

One of the 2 green roll select lights will be illuminated

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7
Q

When the aileron trim is in the normal range on the ground, what color will it be displayed in?

A

Green. It will turn white when moved out of the normal range

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8
Q

What color will the aileron trim be displayed in during flight?

A

White, regardless or trim position

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9
Q

Where do the yaw dampers receive data from?

A

YD 1 receives data from FCC 1

YD 2 receives data from FCC 2

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10
Q

What do yaw dampers do?

A

They improve lateral stability, and alleviate dutch roll

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11
Q

When the PITCH DISC handle is pulled, will the autopilot be available? Why?

A

The autopilot may not be available because the autopilot servo for pitch control is located on the captains side

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12
Q

When the ROLL DISC handle has been pulled, what “ROLL” control surfaces will each yoke have control of?

A

The left yoke controls the left aileron and opposite Multi function spoilers and vice versa

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13
Q

After the ROLL DISC handle is pulled, will the autopilot be available? Why?

A

The autopilot may not be available because the autopilot servo for roll control is located on the first officer’s side

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14
Q

How many PCUs power the rudder?

A

3

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15
Q

If the rudder is jammed, how can control be regained?

A

Increasing the pressure on the rudder pedals will cause the bungie breakout system to be activated and control can be regained

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16
Q

How many stab trim motors are active at a time?

A

Only 1 motor drives the jackscrew at a time. The other motor free wheels with the operative motor, and assumes control if the operating motor fails

17
Q

Will the autopilot disengage if manual control yoke trim is used?

A

Yes. The autopilot will disengage

18
Q

Name the 4 different trims in order of priority (M A A M)

A

Manual trim from either control yoke (Captain’s has priority)
Autopilot trim
Auto trim (Flap compensation trim)
Mach Trim

19
Q

What protection is provided in the event of a stab trim runaway?

A

Stab trim brakes controlled by the SSCUs

20
Q

What is auto trim?

A

Auto trim compensates for changes in aircraft pitch associated with flap extension or retraction. It is also known as flap compensation trim

21
Q

What is the purpose of the split switch on the control yoke for stab trim?

A

Both valves of the switch must be moved together to engage the trim motors. If one half of the switch jams, the trim motors will not run.

22
Q

Will the alternate flap extension switch move the slats and flaps while flying faster then 230 KIAS?

A

No

23
Q

Will the alternate flap extension switch override the position of the flap handle?

A

Yes

24
Q

Will the stick pusher engage if only 1 switch is armed?

A

No

25
Q

If the ground spoilers fail to deploy after touchdown, what actions can be taken?

A

Move the GND LIFT DUMPING switch to MAN ARM

26
Q

How is hydraulic pump 3B powered in the event of a total electrical failure?

A

The ADG

27
Q

What protects the ailerons from flutter in the event of a loss of pressure to the PCUs?

A

Flutter dampers

28
Q

What protects the flight controls in the event of a PCU runaway?

A

Bungie breakouts

29
Q

What are the slats and flaps powered by?

A

2 electrical motors

each controlled by 2 slat/flap electronic control units (SFECUs)

30
Q

What happens if 1 slat or flap motor fails?

A

The slats or flaps will operate at half speed

31
Q

What is the elevator travel?

A

23* UP

18* DOWN

32
Q

Where is rudder or aileron mistrim indicated?

A

It will be indicated as a boxed R or A on the PFD

33
Q

When do the spoilers retract after landing?

A

40 seconds after weight on wheels

34
Q

Stall protection angle of attack trip points result in progressive automatic warnings. What are they?

A

Continuous ignition, autopilot disengages, shaker, pusher, glare shield lights, and finally the audio warbler

35
Q

What does the GLD UNSAFE caution message indicate?

A

Indicates ground lift dumping may occur inadvertently if the system is not manually disarmed

KV Prep (14 decks)

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