Hydraulics Jeopardy

Question 1

The purpose of the PTU is to provide hydraulic system B fluid at a flow rate (approximately 6.5 GPM) and pressure sufficient to provide normal rates of operations for the ____ and____ in the event the hydraulic system B engine driven pump output pressure drops below a specific value.

Answer 1

-Autoslats
-Leading edge devices (LED)

Question 2

When is the automatic operation for standby hydraulic system initiated?

Answer 2

-Flaps extended, AND
-Airborne, or wheel speed greater than 60 it’s, AND
-Loss of system A or B, with the respective FLT CONTROL switch positioned ON

OR:
The main PCU Force Fight Monitor (FFM) trips.

Question 3

What pressurizes both system A and system B. Hydraulic reservoirs?

Answer 3

Regulated bleed air. 13.010.2

Question 4

When do the letters RF (white) appear?

Answer 4

When hydraulic quantity is below 76%. It is only valid when:

-aircraft is on the ground with both engines shutdown, or
-after landing with the flaps up during taxi in.

Question 5

How do you display the hydraulics in the max?

Answer 5

MFS SYS button