Hydraulics

Question 1

The RAT pressurizes the _____ hydraulic system to ______ psi.

Answer 1

Blue

2500 psi

Question 2

Name the YELLOW hydraulic system pumps (4)

Answer 2

1) Engine driven
2) PTU
3) Hand pump
4) Electric pump

Question 3

PTU is activated whenever pressure differential is > ______ psi.

Answer 3

500 psi

Question 4

The priority valve shuts off pressure to which components.

Answer 4

Hi load users (gear, NWS, flaps, etc)

Question 5

Eng hydraulic pump FAULT light can be reset by selecting OFF, except for ______.

Answer 5

Overheat condition

Question 6

In the AUTO position, when will the BLUE electric pump energize

Answer 6

1) One engine running

Question 7

A FAULT light in any hydraulic pump pushbutton indicates what? (4)

Answer 7

1) Hyd pressure is low
2) Hyd reservoir low quantity
3) Air pressure is low
4) Overheat condition

Question 8

Which hydraulic system provides pressure for normal gear operation?

Answer 8

GREEN

Question 9

With the gear up, a hydraulic safety valve closes pressure to the gear with airspeed < _______ kts.

Answer 9

260 kts

Question 10

Normal brakes are provided by the _____ hydraulic system

Answer 10

GREEN

Question 11

With alternate braking, do we have autobrakes?

Answer 11

No

Question 12

Using accumulator pressure only, _____ full brake applications are available.

Answer 12

7

Question 13

What does a FAULT in PTU pushbutton indicate? (3)

Answer 13

Yellow or Green hydraulic system

1) Overheat
2) Reservoir low quantity
3) Low reservoir air pressure