SYS4 Test Review (Hydraulics) Flashcards
(48 cards)
the rudder pedals control both the rudder and nose wheel steering when …
when the nose wheel is extended
full forward control column movement will deflect the elevator …
down 12*
which control surface is used as both a primary and secondary flight control?
spoilers
the rudder boost function is used to help …
with an asymmetric thrust condition
T-1 primary flight controls?
rudder, elevator, spoilers
what are the secondary flight controls?
flaps, speed brake, 3 trim systems
T-1 flap type
electronically controlled, hydraulically actuated double slotted fowler flaps
which secondary flight controls are hydraulically actuated?
flaps and speed brakes
the max speed for moving flaps from 10 to 30
170 KIAS
when does roll trim warning sound?
actuated more than 5 secs
which control surface is both primary and secondary?
spoilers
V_fe for 30 flap
165 KIAS
emergency pitch trim is accomplished ..
electronically with a switch on the pedestal
rudder is operated …
mechanically
when will speed brakes be automatically retracted?
1: throttles to above 60%N1
2: setting flaps beyond 10
speed brake control valve supplies _____ pressure to deploy spoilers on both wings
hydraulic
FLAP ASYM indicates
main flap asymmetry ( >7* differential)
Pitch attitude controlled by
mechanically actuated elevators
emergency pitch trim is ____ of the normal rate of trim
1/3
what happens when the hydraulic filter becomes clogged?
fluid bypasses clogged filter (no indication)
which hydraulic system is not part of the valve package?
wheel brakes
what happens when hydraulic pressure exceeds 1650 psi?
hydraulic pressure relief valve opens, routes excess to return line
purpose of bleed air in hydraulic reservoir?
prevents fluid foaming and provides constant supply of fluid to the pumps
hydraulic pressure stabilizes at
1500 psi