HYDRAULIC SYSTEM Flashcards
HYD
The RAT provides HYD pressure to_____________.
Flight Controls
Which HYD system does the RAT get its fluid from?
The center system
When does the RAT deploy?
When both engines fail
What minimum speed must be maintained for the RAT to produce pressure?
130 KIAS
Which system are normal brakes on?
Right
Which system are Alternate brakes on?
Center
To reduce electrical load the _________ is inhibited on the grnd during eng start w only 1 gen running.
Left DEMAND Pump
How many HYD systems are there?
3
How many control the Flight Controls?
all 3
Where do you read the HYD quantity indicator?
EFIS 2
What does RF Mean?
Refill
What quantity will cause the gauge to switch to RF?
75%
What quantity will cause it to say QTY?
50%
Flying along, what is normally pressurizing the L HYD SYS
L ENG Driven Pump
When do Demand Pumps run automatically?
-Generic answer: When there is a high HYD Demand condition
-The Right HYD SYS Demand Pump will run continuously to back up brakes
-The Center Demand Pump will run continuously to when the Speed Brake Handle is up