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KEY LIME STUDY 2019 > ORAL* E145 Flight Controls > Flashcards

ORAL* E145 Flight Controls Flashcards

1
Q

How is elevator controlled

A

Mechanically

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2
Q

How is pitch trim achieved?

A

Electrically controlled and electrically actuated horizontal stab

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3
Q

What doe spilling elevator disconnect do?

A

Releases the free panel from the jammed one, allowing elevator control

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4
Q

Can you reconnect elevator disconnect in flight?

A

No, only on ground, by maintenance

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5
Q

Indication when elevator is disconnected?

A

Amber light on center pedestal

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6
Q

With elevator disconnected, which side has stick pusher?

A

Left only

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7
Q

If elevators disconnected is autopilot available?

A

No

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8
Q

How many tabs each elevator?

A

2…1 spring and one servo. Servo tab is outer

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9
Q

What do servo tabs do?

A

Deflect proportionately in opposite direction to reduce pressure required

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10
Q

What do spring tabs do?

A

Same as servo tabs in that they move in opposite directions but increase movement with airspeed. At low speeds spring tab remains neutral

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11
Q

What do markings on tail in front of horizontal stab mean?

A

2 degrees for each mark and are a scale…4 degrees up or down

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12
Q

How many channels in HSCU? (Horizontal Stab Control Unit)

A

2

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13
Q

Can autopilot use both channels of HSCU?

A

No, only main channel

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14
Q

Is Hor. Trim rate fixed or variable?

A

Variable according to airspeed

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15
Q

During takeoff config check, where should trim be?

A

In the green

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16
Q

How many motors on Horizontal Stab Actuator?

A
  1. One works at a time
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17
Q

When is pitch trim automatically commanded?

A

With autopilot on OR when speed brakes are used?

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18
Q

Pitch trim up is inhibited when?

A

Stick Shaker

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19
Q

Pitch trim button authority?

A

Left over right. All over autopilot. Backup vs. handhweel…1st used

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20
Q

If main and backup channels in HSCU command at same time was happens?

A

One is either temporarily disengaged or can be inactive for remainder of flight, depending on part number of the unit

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21
Q

If only half of trim switch is held what happens?

A

If half for more than 7 seconds that switch becomes ions

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22
Q

How many seconds will any trim switch work?

A

3 seconds, then beep

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23
Q

Horizontal Stab stalled and excessive load event

A

If pitch trim switches are engaged while HSA is stalled the PIT TRIM INOP….when stall ceases message will go away. If switches used more than 16 seconds while stalled the HSCU will turn off the main or backup and message will be permanent

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24
Q

BACKUP SYS CUTOUT button is turned off…will autopilot work?

A

Yes, if main HSCU system is operative

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25
Q

The pitch trim green band on EICAS has what range?

A

4 to 8 degrees, nose up

26
Q

How are ailerons controlled and moved?

A

Mechanically controlled, hydraulically actuated, which HYD 1 and 2

27
Q

Will ailerons work if you lose both HYD systems?

A

Yes

28
Q

Aileron Disconnect used…can it be reset in flight?

A

No, on ground only

29
Q

If ailerons disconnected can autopilot be used?

A

No

30
Q

Which side of aileron system has roll trim and feel unit?

A

Right

31
Q

How is roll trim performed

A

By changing the ailerons neutral position

32
Q

What does AIL SYS INOP mean?

A

Hydraulic power to Ailerons is out

33
Q

How many rudders are there?

A

2, forward and aft

34
Q

How are rudders controlled and actuated?

A

Mechanically controlled, hydraulically actuated

35
Q

The PCU (power control unit) controls rudder with how many actuators?

A

2, 1 for each hydraulic system

36
Q

How can rudder systems be shut off manually?

A

Buttons on overhead. 1 each for system 1 and 2

37
Q

How can rudder systems 1 and 2 be shut off automatically

A

With the speed switch and hard over protection

38
Q

With no hydraulics does rudder still work?

A

Yes, but it is sluggish and takes more force

39
Q

Both rudder systems work below what airspeed?

A

135…system 1 stops above 135 knots

40
Q

If rudder system 2 fails above 135?

A

System 1 takes over

41
Q

Rudder Hard Over Protection is?

A

Activates in case of runaway rudder…more than 5 degrees of deflection and both engines are above 56% N2 130 lbs of force on the rudder pedal

42
Q

Rudder defection limits?

A

15 DEGREES ON GROUND

43
Q

RUDDER OVERBOOST Means?

A

Both system active above 135 knots

44
Q

Gust lock protects what?

A

Elevator

45
Q

Gust lock works how?

A

Electric Pins at the elevator.

46
Q

Gust Lock light on glareshield means?

A

Gust lock in motion, or failure

47
Q

Flap control and actuation?

A

Electric

48
Q

How many flap motors?

A

2, both operate all with flexible shafts

49
Q

Can one motor operate all flaps?

A

Yes, at half speed

50
Q

If flap asymmetry is detected was happens?

A

Flaps are disabled

51
Q

Flap handle is in different position than flaps when airplane powered up…what will happen

A

Flaps don’t move until the handle is moved

52
Q

How many spoilers?

A

2 each wing…the outer panels are the speed brakes in flight

53
Q

When will ground spoilers deploy?

A

WOW, wheel speed > 25 knots, and thrust idle

54
Q

Will pitch trim be auto with auto pilot off and speed brakes deployed?

A

Yes.

55
Q

To open speed brakes…

A

Thrust lever below 50 degrees and flaps 0 or 9

56
Q

VFE Flaps 9

A

250

57
Q

VFE Flaps 22

A

200

58
Q

VFE Flaps 45

A

145

59
Q

How to check elevator after gust lock removed?

A

Control wheel full forward and aft

60
Q

Max flap altitude

A

20k

61
Q

Max airspeed without retrimming after T/O

A

160 knots

KEY LIME STUDY 2019 (22 decks)

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