Flight Controls Flashcards
With a complete loss of flight control signaling, the ___ must be used to move the stabilizer.
• Captain’s control wheel
• Autopilot
• Alternate pitch trim switches
• Vertical speed mode
• Alternate pitch trim switches
The flaps and slats are driven:
• Hydraulically in all modes
• Electrically in all modes
• Electrically in the PRIMARY mode only
• Hydraulically in the PRIMARY mode only
• Hydraulically in the PRIMARY mode only
With the flaps and slats in the SECONDARY mode, if airspeed exceeds 225 knots with the slats fully extended, they retract to the _____ position.
• Retracted
• 5 degree
• Middle
• Slat load relief not available in secondary mode.
• Middle
On the ground, all spoiler panels extend if both reverse thrust levers are raised to the reverse idle detent.
A. True
B. False
A. True
Which of the following is true when the flight control system is operating in secondary mode?
• Autopilots and envelope protections are not available.
• Envelope protection is available
• The ACEs are not available
• The PFCs are not available
• Autopilots and envelope protections are not available.
With flight controls operating in the direct mode, which of the following components of the primary flight control system are inoperative?
• Actuator control electronics (ACEs).
• Electro hydraulic servos.
• All components are operating.
• Primary flight computer (PFCs).
• Primary flight computer (PFCs).
Automatic speedbrake extension is provided for a rejected takeoff.
A. True
B. False
A. True
The autopilot sends signals:
• Directly to the ACEs.
• Directly to the PFCs.
• To the backdrive actuators.
• To the PCUs only.
• Directly to the PFCs.
The autopilot is available in:
• NORMAL and SECONDARY flight control modes.
• ALTERNATE flight control mode.
• Only if normal stab trim is available.
• NORMAL flight control mode only.
• NORMAL flight control mode only.
On the ground above 60kts groundspeed, the flight control system attempts to maintain a yaw rate near zero by applying rudder input. This function is only available in ____.
• The NORMAL flight control mode.
• The NORMAL and SECONDARY flight control modes.
• The SECONDARY and DIRECT flight control modes
• All modes.
• The NORMAL flight control mode.
When the flaps and slats are in the PRIMARY mode, uncommanded motion will:
• Cause the flaps or slats to transfer to the SECONDARY mode.
• Cause the flap or slat system to transfer to the ALTERNATE mode.
• Drive the slats to the mid sealed position.
• Lock out the outboard flaps.
• Cause the flaps or slats to transfer to the SECONDARY mode.
When operating with the slats in the SECONDARY mode and positioned to the fully extended position, if the airspeed exceeds 225 knots:
A. the slats will transfer to the ALTERNATE mode.
B. LOAD RELIEF will be displayed on the EICAS.
C. The slats will retract to the middle position.
D. Both B and C.
D. Both B and C.
The primary flight control computers (PFCs) cannot override a pilot command.
A. True
B. False
A. True
The flaps and slats in the SECONDARY mode are controlled separately and can be positioned by hydraulic or electric pumps.
A. True
B. False
A. True
How can the pilot place the aircraft into the SECONDARY flight control mode?
• Disconnect the PFCs.
• Disconnect the autopilot.
• You cannot, SECONDARY selection occurs automatically.
• Just ask, it’s pure magic.
• You cannot, SECONDARY selection occurs automatically.
In the NORMAL flight control mode, yaw control attempts to maintain zero yaw rate due to engine failure when above?
• V1
• 60 kts groundspeed and aircraft on the ground
• 150 kts lAS, with a thrust differential greater than 10%
• E/0 acceleration height
• 60 kts groundspeed and aircraft on the ground
Disconnecting the primary flight control computers (PFCs) places the aircraft ____
• In the SECONDARY mode.
• In the ALTERNATE mode.
• In the DIRECT mode.
• Out of control.
• In the DIRECT mode.
Wheel to rudder cross-tie is available in which mode(s)?
A. Secondary
B. All modes
C. Direct
D. A and C
D. A and C
The three modes of the Primary Flight Control System are:
• NORMAL, SECONDARY, DIRECT
• PRIMARY, SECONDARY, ALTERNATE
• NORMAL, SECONDARY, STANDBY
• There are only two modes of operation for the Primary Flight Control System.
• NORMAL, SECONDARY, DIRECT
With a total hydraulic failure, Pitch and Roll control is still available:
• Requires hydraulic accumulator pressure.
• cable connected trim tabs on the elevator and ailerons
• electrically using the control wheel and either primary or alternate pitch trim.
• hydraulic pressure is ALWAYS required.
• electrically using the control wheel and either primary or alternate pitch trim.