Flight Controls Flashcards
What is the maximum flap extension altitude?
20.000ft
Do not deploy the speed brakes in flight at radio altitudes less than _________.
1000ft
_____________ hydraulic system is capable of providing full power control to the ailerons.
either
In the event of total hydraulic power failure, rotation of the pilots’ controls wheels _________ positions the ailerons.
mechanically
If the spoiler system is jammed, force applied to the _____ control wheel provides roll control from the ailerons.
captain`s
If the aileron system is jammed, force applied to the _____ control wheel provides roll control from the spoilers.
FO`s
Any ______ trim applied when the autopilot is engaged can result in an out of trim condition and an abrupt ________ movement when the autopilot is disconnected.
aileron; rolling
The flight spoilers rise on the wing with the up aileron and remain faired on the wing with the down aileron. When the control wheel is displaced more than approximately ____, spoiler deflection is initiated.
10 deg
Where is the aileron trim indicator located?
on top of the control wheel
__________ Aileron Trim Switch(es) repositions the aileron neutral control position.
Movement of both
The pitch control surfaces consist of _______ powered elevators and an _______ powered stabilizer.
hydraulically; electrically
In the event of a control column jam, an override mechanism allows ___________.
the control columns to be physically separated
Illumination of the FEEL DIFF PRESS light indicates _______.
excessive differential hydraulic pressure is sensed in the elevator feel computer
Engagement and disengagement of the Mach Trim System is accomplished _____________.
automatically as a function of airspeed
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
The Elevator Feel Shift module increases hydraulic system A pressure to the elevator feel and centering unit during a stall. This increases _________ force to approximately four times normal feel pressure.
forward control column
The main electric and autopilot stabilizer trim have two modes: high speed with flaps _________ and low speed with flaps _________.
extended; retracted
If the autopilot is engaged, actuating either pair of stabilizer trim switches ______________.
automatically disengages the autopilot
___________ if takeoff is attempted with the stabilizer trim outside the takeoff trim range.
An intermittent horn sounds
If manual trim is used to position the stabilizer beyond the electrical trim limits, _______________ may be used to return the stabilizer to electrical trim units.
the stabilizer trim switches
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 motor
When control column movement opposes trim direction, what occurs?
The control column actuated stabilizer trim cutout switches stop operation of the main electric and autopilot trim
Placing the STAB TRIM override switch to OVERRIDE ____________.
electric trim can be used regardless of control column position
The speed trim system (STS) is a speed stability augmentation system designed to improve flight characteristics during operations with a low gross weight, aft center of gravity, and high thrust when the autopilot _______ engaged.
is not
While inflight the SPEED TRIM FAIL light illuminates. What has occurred?
a dual channel failure of the speed trim system
___________ operates the rudder.
either hydraulic system
Operation of the Rudder Trim Control switch electrically repositions the _______________, which results in a shift in the rudder neutral position
rudder feel and centering unit
__________ movement results from yaw damper coordination
no rudder pedal
On the B737-800, the yaw damper uses _____________.
hydraulic system B or standby hydraulic system pressure
Above approximately 135 knots, both hydraulic system A and B pressure are each reduced. This function limits full rudder authority _____________,.
in flight after takeoff and before landing
The rudder pedals permit limited nose gear steering up to ______ degrees each side of center.
7
The Rudder Trim OFF Flag indicates the rudder trim __________.
indicator is inoperative
Rotating the rudder trim control knob, __________.
electrically trims the rudder
The ground spoilers are powered by hydraulic system _____.
A
When the SPEED BRAKE lever is actuated all the spoilers __________.
extend on the ground and only the flight spoilers extend when the aircraft is in the air
Using the flight spoilers during a turn will ___________.
greatly increase the roll rate
All flight and ground spoilers will automatically rise to full extend on landing if the speed brake lever is in the ARMED position and __________.
both thrust levers are at IDLE
An illuminated SPEED BRAKE DO NOT ARM light indicates ___________.
an abnormal condition during landing the wheel speed has dropped below 60kt and the speed brake lever is not in the down position
The _______ position 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 ground use.
FLIGHT DETENT; UP
An illuminated SPEED BRAKE ARMED light indicates ___________.
valid automatic speed brake system inputs
In the event of hydraulic system B failure, the trailing edge flaps ___________.
can be operated electrically
____________ is provided through the alternate (electrical) flap drive system.
no assymetry or skew protection
The Flaps/Slats Electronic Unit (FSEU) monitors trailing edge flaps for _______________. If the FSEU detects a trailing edge problem, it_______ the trailing edge flap bypass valve.
assymetry and skew condition; closes
On the B737-800, the TE flap load relief function protects the flaps from excessive air loads. When the flaps are set to 40 the TE flaps will _______ if airspeed exceeds 163 knots.
retract to 30
The FLAP Lever _______.
all answers are correct
- select position of flap control valve, direction hydraulic pressure for flap drive unit, and selects the position of the LE devices by the determined TE flap position
- at flap position 30 and 40 arms the flap load relief system
Why are there mechanical Flap Gates positioned at 1 and 15?
for single engine and normal go-around
Where would a TE flaps asymmetry or skew indication be seen?
the flap position indicator
Leading edge devices are normally extended and retracted by ___________.
hydraulic power from system B
Leading edge devices _______ be retracted by the standby hydraulic system.
cannot
At flaps 1, the Auto Slat system _____________ as the aircraft approaches the stall condition.
automatically drives the slats to FULL EXTEND
On the Leading Edge Devices (LE DEVICES) Annunciator Panel, located on the aft overhead panel, an extinguished LE light indicates ______.
the related LE devives is retracted
On the Leading Edge Devices (LE DEVICES) Annunciator Panel, located on the aft overhead panel, pressing the Leading Edge Annunciator Panel TEST switch _________.
tests all announciator panel light
An illuminated amber Leading Edge Devices Transit (LE FLAP TRANSIT) Light, indicates _________.
all answers are correct
- any LE devices is in transit, or is not in its programmed position with respect to the trailing edge flaps
- a LE slat skew condition exists
An illuminated green Leading Edge Devices Extended (LE FLAPS EXT) Light, indicates _________.
all leading edge flaps are extended
The Flight SPOILER switches
are used for maintenance purposes only
An illuminated amber YAW DAMPER Light indicates _________.
the yaw damper is not engaged
With the YAW DAMPER Switch ON, the yaw damper is engaged to the main rudder power control unit if ___________________.
the B FLT CONTROL switch is in the ON position
Placing the ALTERNATE FLAPS Master Switch to ARM, closes the TE flap bypass valve, ________________ and arms the ALTERNATE FLAPS position switch
activates the standby pump
Momentarily pressing the ALTERNATE FLAPS position switch to DOWN ________________.
fully extends LE devices using standby hydraulic pressure
An illuminated amber Speed Trim Failure (SPEED TRIM FAIL) Light indicates ________________.
a failure of the speed trim system
An illuminated amber Automatic Slat Failure (AUTO SLAT FAIL) Light during MASTER CAUTION recall indicates ________________.
a failure of a single Stall Management/YAW DAMPER COMPUTER
An illuminated amber STBY RUD ON Light indicates ________________.
the standby rudder system is commanded on to pressurize the standby rudder power control unit
