Flight Controls Flashcards
What powers the Power Control Units (PCUs) that move various flight controls?
Hydraulics.
The trailing rudder deflect at ____ the rate of the fore rudder rate.
2 times.
The trailing rudder is connected to the fore rudder by which component?
Push rods.
What controls the distance the rudder can travel?
Rudder input restrictor and Flight Control Electronic Unit (FCECU).
What is the distance the rudder can travel either side of center when the flaps are set to 0 degrees?
12º either side.
With the flaps set to 5 degrees or greater, what is the maximum rudder travel either side of center?
18º either side.
T or F: at low speeds, the FCECU does not limit hydraulic pressure to the rudder.
True.
T or F: at low speeds, the FCECU limits hydraulic pressure to the rudder.
False.
T or F: at high airspeeds, hydraulic pressure to the rudder is reduced.
True.
T or F: at high airspeeds, hydraulic pressure to the rudder is not limited.
False.
How do pilots know if the rudder/elevator trim position signal fails?
Trim indication moves off scale.
T or F: if the trim position signal fails, the trim still operates normally?
True.
What provides roll control for the aircraft?
Two ailerons assisted by four flight spoilers.
T or F: the ailerons are directly operated by the First Officer’s control column.
True.
T or F: the ailerons are directly operated by the Captain’s control column.
False.
The ailerons are mechanically controlled and ____.
Cable operated.
The spoilers are mechanically controlled and ____.
Hydraulically operated.
T or F: the aircraft has a roll disconnect handle that allows the control wheels to be separated in the event of an aileron or spoiler jam.
True.
How far will the control yokes travel to either side?
70º of center.
Which direction does the geared tab move on the aileron?
Opposite.
T or F: the aileron trim should be used when autopilot is engaged.
False.
T or F: aileron trim should be used when autopilot is not engaged.
True.
Which hydraulic system controls the inboard spoilers?
1.
Which hydraulic system controls the outboard spoilers?
2.
When operating at airspeeds greater than ____ knots, the FCECU inhibits outboard spoiler movement.
170 knots.
At decreasing airspeeds less than ____ knots, both outboard spoilers are active.
165 knots.
The inboard and outboard spoilers fully extend when ____.
The spoiler switch is in flight, both power levers are less than flight idle plus 12º, weight-on-wheel proximity on both landing gear indicate the plane is on the ground.
T or F: if there is a jam in the spoiler PCU linkage, the spoiler clutch mechanism will removed the spoiler from the PCU.
True.
The elevators are mechanically controlled and ____.
Hydraulically operated.
The Captain’s yoke is directly connected to which elevator side?
Left.
How many hydraulic PCUs power the left side of the elevator?
Three.
How many total hydraulic PCUs power the whole elevator?
Six.
How many hydraulic PCUs power the right side of the elevator?
Three.
Who/what has the highest priority for pitch trim?
Captain.
The stall protection system is active when?
Calibrated airspeed is less than 215 knots, altitude is greater than 200’ AGL, STICK PUSHER SHUTOFF is not selected.
How many pounds of force is needed to override the stick pusher?
80 pounds.
T or F: the stall warning angle of attack is set to a lower value when ice is adhering to the aircraft.
True.
T or F: maximum rudder travel is based on flap selection.
True.
The RUD1 or 2 PUSH OFF switchlights ____.
Depressurize the associated rudder PCU.
Roll control is provided by 2 ailerons and a total of ____.
4 flight spoilers.
What does the SPOILERS switch on the glareshield accomplish?
Controls the spoiler mode.
In the event of a roll control jam:
Pulling the ROLL DISC handle isolates the pilots’ control wheels.
Which flight controls are not hydraulically operated?
Ailerons.
The ELEVATOR PRESS caution light illuminates when what occurs?
All 3 elevator PCUs are operating.
T or F: the pitch feel and trim unit provides tactile feedback to simulate control loads and avoid over control of the elevator.
True.
T or F: pitch trim rate is variable and based on flap configuration.
False, it is based on airspeed.
The FLAP POWER caution light illuminates to indicate ____.
General system failure, flaps are unsafe to use and locked in the last valid position.
T or F: if the stick shaker activates, the autopilot will remain engaged and revert to TOGA mode.
False.
