Hydraulic System

Question 1

Each Hydraulic System provides ____ psi hydraulic pressure

Answer 1

3000

Question 2

The engine driven hydraulic pumps are on the ____ which is ran by the ____

Answer 2

ADG (Accessory drive gear box) ; (PTO) power takeoff shaft

Question 3

if system A and B fail, the ____ driven pump provides hydraulic pressure to system ____

Answer 3

EPU ; System A

Question 4

EPU system activates automatically if both system pressures fall below _______ psi

Answer 4

1000 psi

Question 5

what are the 4 types of hydraulic system accumulators

Answer 5

Reservoir pressurization acc.
FLCS acc.
Brake/JFS acc.
LG/hook acc.

Question 6

both systems operate

Answer 6

LEFs (leading edge flaps) and Primary Flight controls

Question 7

each system has _____ accumulator which are separated by _______ ______

Answer 7

FLCS ; check valves

Question 8

_________ adds more pressure when rapid flight control movements take place, before the EPU receives a start command and activates which takes about ___ seconds

Answer 8

FLCS accumulators ; 2 second

Question 9

Brake/JFS accumulators provide ______ for the JFS, and _______ for the brakes

Answer 9

starting power ; emergency pressure

Question 10

if engine is at least ____%, it will take ___-___ seconds for system B to recharge the brake/JFS accumulators

Answer 10

12% ; 40-60

Question 11

the LG/Hook pneumatic accumulator provides ___________ and _________. This accumulator ____ rechargeable during flight.

Answer 11

alternate landing gear extension and holds the hook firmly on the runway
Not rechargeable during flight

Question 12

Hydraulic cooling is provided by ______ which also cools _______ and_______ oil

Answer 12

a hydraulic fluid fueled heat exchange ; constant speed drive and ADG

Question 13

Normal Hydraulic pressure is _____-____ psi

Answer 13

2850-3250

Question 14

Hydraulic/Oil Pressure illuminates when ______ system drops below ____ psi

Answer 14

either ; 1000 psi

Question 15

Landing gear system is normally operated by system __

Answer 15

B

Question 16

the main landing gear retract ______ and extend by _____

Answer 16

hydraulically ; free fall assisted by air loads

Question 17

Nose gear extends and retracts by _______ pressure with a ____ degrees twist and may not indicate down and locked until below ____ kts

Answer 17

hydraulic ; 90* ; 190

Question 18

While on the ground, the LG Handle is locked down, after takeoff a signal from the ________ gear WOW switch activates a solenoid which unlocks the handle

Answer 18

left main

Question 19

WOW switches are on the ______ gear and operate as a function of ________ or _______.

Answer 19

both MLG and NLG ; strut extension or compression

Question 20

with system ___ hydraulic pressure available make sure the LG handle is down before using the ALT GEAR handle because the handle sends a signal to ____ and _____ to operate normally

Answer 20

system B ; brakes and Trailing Edge Flaps

Question 21

LG and Hook emergency Pneumatic bottle is located in the ______ well

Answer 21

NLG

Question 22

gear is up and locked when __________

Answer 22

all three lights are off and LG handle warning light is off

Question 23

LG handle warning light illuminates red when:

Answer 23

LG/doors do not match LG handle position
LG/doors are in transit
LG not locked in commanded position
Airspeed <190 kts
altitude <10,000' MSL
rate of descent >250 fpm

Question 24

LG warning horn when:

Answer 24

Airspeed <190 kts
Altitude <10,000’ MSL
rate of descent >250 fpm

Question 25

TO/LDG CONFIG warning light illuminates when:

Answer 25

``` airspeed <190 kts altitude <10,000' MSL rate of descent >250 fpm TEFs not full down LG not down and locked ```

Question 26

hydraulic system A operates:

Answer 26

Speedbrakes fuel flow poportioner leading edge flaps (LEFs) FLCS

Question 27

hydraulic system B operates

Answer 27

``` LEFs FLCS gun system air refueling system landing gear system nosewheel steering system wheel brake system JFS system ```

Question 28

NWS is _____ controlled and _____ operated using system ____ pressure

Answer 28

electrically controlled ; hydraulically operated using system B pressure

Question 29

NWS is limited to ___ degrees

Answer 29

32

Question 30

NWS is automatically disengaged when ______

Answer 30

NLG strut is extended

Question 31

NWS not available after_____

Answer 31

alternate gear extension NWS FAIL caution light System B Failure

Question 32

NWS FAIL light does not illuminate for _____ or ______

Answer 32

System B Failure | or Strut Extension

Question 33

Brake hydraulic pressure is provided by system ___

Answer 33

B

Question 34

Brake pedals receive ____ power from the _____, and ___ power from the brake channel selection and has two batteries to provide DC power for redundancy and has ____ pistons - *Need full AC and DC power for full braking power

Answer 34

AC power ; 4 FLCS inverters ; DC power ; 3 pistons

Question 35

if _____ power is lost, no braking is available

Answer 35

battery

Question 36

channel 1 braking system:

Answer 36

normal position brakes with LG handle down only provides ant-spin when LG retracted

Question 37

channel 2 braking system:

Answer 37

brakes with LG handle up or down | LG handle stuck up (alternate gear extension) - channel 2 must be selected

Question 38

deceleration skid control is active with _____% pressure and _____ braking action

Answer 38

<85% and good braking action

Question 39

Max performance skid control is active with ____% pressure and ____ braking action

Answer 39

85% or more and poor braking action

Question 40

full anti skid protection above __ kts when accelerating and to __ kts when decelerating

Answer 40

above 12 kts ; 5 kts when decelerating

Question 41

not antiskid available with ANTI-SKID switch ___ and brakes in CH. __

Answer 41

OFF ; ch. 2

Question 42

Parking brake works when:

Answer 42

throttle off to idle position and WOW

Question 43

parking brake requires power from _____ and _____ or _____ accumulator

Answer 43

battery bus and system B or Brake/JFS accumulator

Question 44

parking brake automatically released when:

Answer 44

advancing throttle >1" beyond idle

Question 45

ANIT SKID caution light on when:

Answer 45

>5 Kts with malfunction affecting braking <5 Kts with malfunction not affecting braking LG handle down and switch in OFF

Question 46

max engagement speed for hook operation

Answer 46

150 kts

Question 47

hook operation is ______ operated and pressure is supplied by the ______________

Answer 47

pneumatically ; LG/Hook emergency bottle

Question 48

in two-seater when will hook be raised?

Answer 48

when both switches are in the up position

Question 49

if the hook was down, and you move the switch to up...

Answer 49

allows hook to raise a little to taxi over cable, or be manually disengaged

Question 50

HOOK caution light when:

Answer 50

anytime hook is not up and locked

Question 51

For an approach-end arrestment, touch down at least ____ before cable and lower _____

Answer 51

500' before and lower nose gear

Question 52

for departure-end arrestment, get hook down _____ before cable and reduce speed as much as possible

Answer 52

1500'

Question 53

to prevent hook bounce and possible missed engagement avoid ________

Answer 53

centerline lighting

Question 54

hook engagement: speeds greater than 150kts and greater than ____ from centerline or with ____ in the air could result in structural damage

Answer 54

35' from centerline, with nosewheel in the air