Hydraulics

Question 1

Normal pressure for Hydraulic System A and B is _____ psi

and maximum system pressure is _____ psi.

Answer 1

3000 ± 200 / 3500

Question 2

Positioning either (number 1 or 2) Engine driven hydraulic 
pump switch to OFF \_\_\_\_\_ the Blocking Valve. System 
pressure is maintained by the Electric Motor Pump.

Answer 2

closes

Question 3

_____ pressurize(s) the System A and B reservoirs.

Answer 3

regulated (engine) bleed air

Question 4

Positioning _____ allows the Standby System to power the

rudder and thrust reversers

Answer 4

either FLT CONTROL to STBY RUD

Question 5

The Power Transfer Unit (PTU) provides normal rates of
operation for the ____ if the System B Engine-Driven Pump
output drops below a specific value.

Answer 5

Autoslats and Leading Edge Devices (LED)

Question 6

Losing Hydraulic System A or B automatically initiates

Standby Hydraulic System operation if _____.

Answer 6

1) the flaps are extended
2) airborne”,” or wheel speed greater than 60 kts
3) FLT CONTROL switch A or B is ON
4) all the abov

Question 7

_____ pressurizes the Standby System reservoir.

Answer 7

System B Reservoir pressure

Question 8

Each hydraulic system has a fluid reservoir located in the

_____

Answer 8

main wheel well area

Question 9

The ELEC 2 pump ON/OFF switch controls the _____ Electric

Motor-Driven Pump

Answer 9

Hydraulic System A

Question 10

_____ automatically initiates Standby Hydraulic System

operation

Answer 10

main rudder PCU Force Fight Monitor (FFM) activation

Question 11

The letters RF (white) appear anytime Hydraulic System

quantity is _____.

Answer 11

below 76 percent and the aircraft is on the ground

Question 12

The OVERHEAT (amber) light on the Hydraulic Panel 
indicates \_\_\_\_\_

Answer 12

an Electric Motor-Driven pump has overheated

Question 13

The STANDBY HYD LOW QUANTITY (amber) light indicates

_____

Answer 13

the quantity is approximately half empty