Flight Controls (B767) Exam Questions
and Answers 100% Pass
How many elevators are there and how are they powered? - ✔✔2
elevators, one on each side
Each elevator is powered by all three hyraulic systems
What provides artificial elevator feel? How is it powered? How many are
needed? - ✔✔Two artificial elevator feel computers provide forces to the
pilot control columns
Each has its own hydraulic power input
The Left and Center system powers these computers
1
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,Only one computer is needed
What happens if the artificial elevator feel system completely fails? - ✔✔If
both artificial feel computers lose hydraulic power, then there are spring
backups in the control columns
How many stabilizer trim control modules are there? How are they
powered? Are they separate? - ✔✔There are two trim control modules.
They are powered hydraulically from the Left and Center systems
respectively
They typically work in unison when trim inputs are made
What are the three modes of stabilizer trim input? - ✔✔Electric, alternate,
and automatic. All three modes need hydraulic power to actuate the
jackscrew
How is electric trim activated? - ✔✔Via the trim switches in the yoke
2
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, What is the function of each trim switch in each yoke? - ✔✔One switch
applies hydraulic pressure while the other releases the jackscrew brake.
Both must selected in unison in the same direction to move the stabilizer
trim
How does electric trim speed change with airspeed? - ✔✔The faster the
airspeed, the slower the trim speed
Will electric trim disconnect the autopilot? - ✔✔It will disconnect the
autopilot if only one autopilot is operating
If more than one autopilot is operating, electric trim is inhibited
How does the alternate trim system work? - ✔✔Overrides all other inputs
and bypasses the control column cutoff relays, but not the cutoff switches
Will alternate trim cause the autopilot to disconnect? - ✔✔No
Which has a greater range of stabilizer travel? Electric or alternate? -
✔✔Alternate
3
100% Pass Guarantee Katelyn Whitman, All Rights
and Answers 100% Pass
How many elevators are there and how are they powered? - ✔✔2
elevators, one on each side
Each elevator is powered by all three hyraulic systems
What provides artificial elevator feel? How is it powered? How many are
needed? - ✔✔Two artificial elevator feel computers provide forces to the
pilot control columns
Each has its own hydraulic power input
The Left and Center system powers these computers
1
100% Pass Guarantee Katelyn Whitman, All Rights
,Only one computer is needed
What happens if the artificial elevator feel system completely fails? - ✔✔If
both artificial feel computers lose hydraulic power, then there are spring
backups in the control columns
How many stabilizer trim control modules are there? How are they
powered? Are they separate? - ✔✔There are two trim control modules.
They are powered hydraulically from the Left and Center systems
respectively
They typically work in unison when trim inputs are made
What are the three modes of stabilizer trim input? - ✔✔Electric, alternate,
and automatic. All three modes need hydraulic power to actuate the
jackscrew
How is electric trim activated? - ✔✔Via the trim switches in the yoke
2
100% Pass Guarantee Katelyn Whitman, All Rights
, What is the function of each trim switch in each yoke? - ✔✔One switch
applies hydraulic pressure while the other releases the jackscrew brake.
Both must selected in unison in the same direction to move the stabilizer
trim
How does electric trim speed change with airspeed? - ✔✔The faster the
airspeed, the slower the trim speed
Will electric trim disconnect the autopilot? - ✔✔It will disconnect the
autopilot if only one autopilot is operating
If more than one autopilot is operating, electric trim is inhibited
How does the alternate trim system work? - ✔✔Overrides all other inputs
and bypasses the control column cutoff relays, but not the cutoff switches
Will alternate trim cause the autopilot to disconnect? - ✔✔No
Which has a greater range of stabilizer travel? Electric or alternate? -
✔✔Alternate
3
100% Pass Guarantee Katelyn Whitman, All Rights
