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B737-700 NG Systems > Flight Controls > Flashcards

Flight Controls Flashcards

1
Q

T/F: The Spoiler switches on the Flight Control Panel are for maintenance purposes only

A

True

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2
Q

What is manual reversion with regards to the ailerons or elevator?

A

With a loss of hydraulic systems A and B, the ailerons or elevator can still be mechanically positioned by the pilot’s control wheel. (Control forces are higher due to friction and aerodynamic loads).

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3
Q

T/F: You can use aileron trim with the auto pilot engaged

A

False. This is prohibited

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4
Q

How many spoilers does the aircraft have and how are they powered?

A

10 spoilers - 8 flight spoilers & 2 ground spoilers. Powered only by hydraulics (no manual reversion). Hydraulic A powers the ground spoilers & 2 flight spoilers on each wing. Hydraulic B powers 2 flight spoilers on each wing.

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5
Q

The flight spoilers deploy symmetrically when the Speedbrake Lever is used beyond the _______ position.

A

ARMED

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6
Q

What is the purpose of the Aileron Transfer Mechanism?

A

The purpose of the aileron transfer mechanism is to isolate the aileron system from the flight spoilers if a jam occurs.

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7
Q

When does the FEEL DIFF PRESS light illuminate?

A

When either hydraulic system or elevator feel pitot system fails, excessive differential pressure is sensed in the elevator feel computer.

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8
Q

What is the purpose of the Stabilizer Trim Cutout Switch?

A

This switch deactivates stabilizer trim anytime the direction of trim is opposite of pressure on the control column.

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9
Q

T/F: Rudder trim is not available when the rudder trim indicator is inoperative

A

False.

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10
Q

The yaw damper system consists of a _____ and _______ yaw damper.

A

main, standby

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11
Q

During normal operations, the main yaw damper uses hydraulic system _________

A

B

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12
Q

T/F: The yaw dampener can still be used with the loss of Hydraulics A&B via the standby hydraulic system

A

True

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13
Q

The Mach Trim system automatically engages above Mach _____

A

.615

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14
Q

The Horizontal Stabilizer can be controlled in what three ways?

A
  1. Manually - stabilizer trim wheels (actuates stabilizer via cables)
  2. Electrically - trim switches on control wheel (actuates stabilizer via electric trim motor)
  3. Automatic (autopilot)
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15
Q

Compression of the _______ main landing gear strut enables the ground spoilers to deploy

A

Right. (The flight spoilers will deploy via compression of either one of the struts)

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16
Q

On the ground, the SPEED BRAKES EXTENDED light illuminates when the SPEED BRAKE lever is in the ________ detent and the ground spoilers are not stowed.

A

DOWN

17
Q

What kind of Flaps does the aircraft have?

A

Double Slotted flaps

18
Q

The TE flaps are mechanically controlled by the FLAP Lever and are normally operated by ______________

A

hydraulic system B.

19
Q

Each wing has ____ leading edge flaps inboard and _____ slats outboard of each engine.

A

2, 4

20
Q

T/F: The LE flaps are either up, in transit, or fully extended while the LE slats have an intermediate extended position

A

True

21
Q

T/F: At flap positions 1, 2, and 5 an autoslat function is available that moves the LE slats to full extended if the airplane approaches a stall condition.

A

True

22
Q

T/F: Flap load relief is operative at all flap positions

A

False. It is only available at Flaps 30 or 40

23
Q

T/F: Flap asymmetry conditions can only be corrected on the ground.

A

True

24
Q

T/F: Leading edge slats 1 & 8 are not monitored for skew conditions

A

True

25
Q

LE Slats go the fully extended position when the flap lever is set beyond ______

A

FLAPS 5

26
Q

An aileron ____________ is connected to the system to provide feel force, and moves the control wheel to a neutral position when there is no input.

A

feel and centering unit

27
Q

When the control wheel is displaced more than approximately __________ spoiler deflection is initiated.

A

10 degrees

28
Q

The SPEED TRIM FAIL light illuminates on the Flight Control Panel when…

A

the Speed Trim System (STS) has failed

29
Q

The purpose of the ______ is to return the airplane to a trimmed speed by commanding the stabilizer in a direction opposite the speed change

A

Speed Trim System (STS)

30
Q

The normal flap positions for landing are:

A

15, 30, or 40

31
Q

Leading edge devices and trailing edge flaps are normally extended and retracted using _______ pressure.

A

Hydraulic system B

32
Q

When TE flaps 1 through 5 are selected, the LE slats are in the _____ position

A

EXT (extend)

33
Q

T/F: When using alternate flap extension, the LE flaps and slats are driven to the full extended position using power from the standby hydraulic system

A

True

34
Q

T/F: The LE devices can be retracted by the standby hydraulic system

A

False

35
Q

What does the Elevator Feel Computer do?

A

Provides simulated aerodynamic forces using airspeed data from the elevator pitot system and stabilizer position. As airspeed in increases, feel force increases.

36
Q

Moving the ALTERNATE FLAPS master switch to ARM does what 3 things?

A
  1. Closes a flap bypass valve to prevent hydraulic lock of the flap drive unit
  2. Activates the standby hydraulic pump
  3. Arms the ALTERNATE FLAPS position switch
37
Q

How are TE Flaps extended when using the Alternate Flap system?

A

The ALTERNATE FLAPS position switch controls an electric motor that extends or retracts the TE flaps

38
Q

The Yaw Damper system is capable of providing …

A
  1. Turn coordination
  2. Dutch roll prevention
  3. Gust damping

B737-700 NG Systems (23 decks)

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