HYDRAULICS

Question 1

HYDRAULICS
How many electrically driven hydraulic
systems are there?

Answer 1

How many electrically driven hydraulic
systems are there?

One

Question 2

HYDRAULICS

Are the hydraulic systems independent of each other?

Answer 2

Are the hydraulic systems independent of each other?

Yes

Question 3

HYDRAULICS

Which systems are powered by both hydraulic systems?

Answer 3

Which systems are powered by both hydraulic systems?

Ailerons and elevators

Question 4

HYDRAULICS
How can you set the brakes without the
engines running?

Answer 4

How can you set the brakes without the
engines running?

Turning the aux hydraulic pump that is electrically
actuated on, then setting the parking brake.

Question 5

HYDRAULICS

Which items are powered by the left hydraulic sytem?

Answer 5

Which items are powered by the left hydraulic sytem?

Left thrust reverser, emergency brakes, outboard
airbrakes

Question 6

HYDRAULICS

What is the normal hydraulic pressure?

Answer 6

What is the normal hydraulic pressure?

2700-3250 psi

Question 7

What hydraulic system does the auxilary

electric pump power?

Answer 7

What hydraulic system does the auxilary
electric pump power?

Right

Question 8

HYDRAULICS
What power system does the emergency
landing gear use?

Answer 8

What power system does the emergency
landing gear use?

Stored pneumatic pressure (nitrogen)

Question 9

HYDRAULICS

Emergency wheel brakes power is provided by?

Answer 9

Emergency wheel brakes power is provided by?

An accumulator
Left Hydraulic System

Question 10

HYDRAULICS
When does the electric auxiliary pump
come on automatically?

Answer 10

When does the electric auxiliary pump
come on automatically?

Either main landing gear not locked up with one
thrust lever set beyond MAX CLIMB; or
Low pressure in the right hydraulic system
(below 1200 psi)

Question 11

HYDRAULICS
True or False; With a total loss of hydraulic power, the
airplane is unflyable.

Answer 11

rue or False; With a total loss of hydraulic power, the
airplane is unflyable.

False

Question 12

HYDRAULICS

When does the q-feel system come on?

Answer 12

When does the q-feel system come on?

150 KIAS

Question 13

HYDRAULICS

How many accumulators are there?

Answer 13

How many accumulators are there?

Two

Question 14

HYDRAULICS

What does the left hydraulic accumulator power?

Answer 14

What does the left hydraulic accumulator power?

One T/R deployment, or
Six applications of emergency brakes for a total of
50 seconds.

Question 15

HYDRAULICS
True or False; The OVRRD position of the electrical
auxiliary hydraulic pump will allow the pump to run even
if the thermal protection has turned the pump off due to
high motor load.

Answer 15

True or False; The OVRRD position of the electrical
auxiliary hydraulic pump will allow the pump to run even
if the thermal protection has turned the pump off due to
high motor load.

True

Question 16

What is the normal pressure for the emergency landing

gear nitrogen bottle?

Answer 16

What is the normal pressure for the emergency landing
gear nitrogen bottle?

3000 psi

Question 17

HYDRAULICS
What is the pre-charge pressure of the
brake accumulator?

Answer 17

What is the pre-charge pressure of the
brake accumulator?

1250 psi.

Question 18

HYDRAULICS
When does the HYD PUMP PRESS HI message come
on?

Answer 18

When does the HYD PUMP PRESS HI message come
on?

Hyraulic pressure above 3,500 psi

Question 19

HYDRAULICS

When does the HYD QTY REFILL message come on?

Answer 19

When does the HYD QTY REFILL message come on?

Hydraulic fluid quantity is less than 90% and on the
ground only.

Question 20

HYDRAULICS
How can landing gear be lowered with the loss of both
the right and left hydraulic system?

Answer 20

How can landing gear be lowered with the loss of both
the right and left hydraulic system?

Emergency landing gear handle near the pilot’s right
knee on the side of the console
With compressed nitrogen

Question 21

HYDRAULICS

What is the steering angle of the nose wheel steering?

Answer 21

What is the steering angle of the nose wheel steering?

+- 60 degrees

Question 22

HYDRAULICS
How can you override the gear handle if it will not come
up?

Answer 22

How can you override the gear handle if it will not come
up?

Use the DOWNLOCK OVERRIDE button

Question 23

HYDRAULICS

What does the GEAR NOT DOWN message mean?

Answer 23

What does the GEAR NOT DOWN message mean?

Landing gear is not down and locked with radar alti-
tude of less than 800 ft
One thrust lever at or below max cruise detend or
flaps more than 25 degrees, both required.

Question 24

HYDRAULICS
True or False; The emergency braking system is just as
effective as the normal breaking system.

Answer 24

True or False; The emergency braking system is just as
effective as the normal braking system.

False; it is only half as effective

Question 25

HYDRAULICS

When is braking available?

Answer 25

When is braking available?

Not until after touchdown and wheel spin-up above
35 kts

Question 26

HYDRAULICS
How do the ground airbrakes differ from the flight air-
brakes?

Answer 26

How do the ground airbrakes differ from the flight air-
brakes?

Faster rate of extension
They only come out after aircraft touchdown

Question 27

HYDRAULICS
Of the eight surfaces used for airbrakes, which ones
doe the flight airbrakes use?

Answer 27

Of the eight surfaces used for airbrakes, which ones doe
the flight airbrakes use?

Only the four inner surfaces

Question 28

HYDRAULICS

When do the Krueger flaps extend?

Answer 28

When do the Krueger flaps extend?

Whenever the slats extend

Question 29

HYDRAULICS

What is bleed air used for in the ECS system?

Answer 29

HYDRAULICS
What is bleed air used for in the ECS system?

Pressurization
Air conditioning