Hyd Flashcards
The center hydraulic system has an isolation function which _____.
A. ensures the flight crew can lower the landing gear.
B. allows nosewheel steering to be operational for landing, rollout and taxi.
Normal brakes are powered _____.
C. Electricity
The Center Demand pump operates _____?
A. On the ground for the first three minutes after the second engine is started
B. from T/O thrust set until above 2000ft RA is less than 2000ft until groundspeed is below 60kts
C. Flaps and Slats are in motion.
The left hydraulic system powers which systems?
Some flight controls and left engine thrust reverser.
What is the minimum number of hydraulic systems required for “adequate airplane controllability”?
One
With the left or right hydraulic demand pump selectors in the AUTO position, which of the following is true?
A. Pumps operate from takeoff thrust set to flaps retracted.
B. Pumps operate with system low pressure.
C. Pumps operate during thrust reverser opereation.
Which hydraulic pump(s) may be shed to allow the electrical system to provide power to other systems?
A. Center demand pump
B. Left Demand Pump
C/ Right Demand Pump
The hydraulic isolation system ensures:
landing gear can be lowered and nose wheel steering operates.
Which of the following will cause the RAT to deploy automatically in flight?
D. Left, Center, and Right Hydraulic pressure low.
What component(s) does the RAT hydraulically power?
C. Primary flight control components normally powered by the center hydraulic system.
Autoland is inoperative for which of the following conditions?
Left and Right hydraulic system pressure is low
What happens if both the C1 and C2 Pump selectors are positioned to ON at the same time?
Both pumps will run.
Which of the following components are powered by the right hydraulic system?
B. Some flight controls
C. Right engine thrust reverser
The Ram Air Turbine (RAT) may be manually or automatically deployed?
A. True
The primary hydraulic pump FAULT lights illuminate (amber) when the following occurs:
A. Low primary pump pressure
B. Excessive primary pump fluid temperature.
C. Pump selected OFF.
