Hydraulics

Question 1

Indications shown on the hydraulic synoptic page include:
Reservoir quantity and temperature
Inboard and outboard brake pressure
System pressure and available systems
all of the above

Answer 1

Reservoir quantity and temperature
Inboard and outboard brake pressure
System pressure and available systems

Question 2

Which hydraulic pump(s) is associated with the ADG?
3A
3B
1B
2B

Answer 2

3B

Question 3

System 3 is powered by ____ EDP(s
0
1
2
3

Answer 3

0

Question 4

Hydraulic system 1 and 2 are cooled by:
(A). Pack air over primary heat exchanger

(B). Ram air

(C). Fuel heat exchanger

(D). Ram air, fluid heat exchanger

Answer 4

Ram air, fluid heat exchanger

Question 5

What hydraulic pumps are engine driven?
1A and 3A
3A and 2A
1A and 2A
3B and 2A

Answer 5

1A and 2A

Question 6

The hydraulic system 1 shutoff valve can be closed by:
A). Moving the engine thrust levers to SHUT OFF

(B). Pressing the left ENG FIRE PUSH switchlight

(C). Selecting the L/R HYD SOV switchlights to closed

(D). Both B and C

Answer 6

Pressing the left ENG FIRE PUSH switchlight
Selecting the L/R HYD SOV switchlights to closed

Question 7

What is the normal range for the hydraulic reservoir quantity?
60-100
35-85
45-85
ABOVE 40

Answer 7

45-85%

Question 8

All three hydraulic systems power:

(A). The left ailerons, the elevator and the rudder

(B). The elevator and rudder

(C). Both spoilerons, the rudder and the elevator

(D). None of the above

Answer 8

The elevator and rudder

Question 9

Hydraulic system 3 is powered by ____ EDPs (Engine Driven Pumps).
0
1
2
3

Answer 9

0

Question 10

Hydraulic System 1 is powered by ___ AC (Alternating Current) electric motor pump(s).
0
1
2
3

Answer 10

1

Question 11

The hydraulic pumps deliver fluid at _____________.
3000
300
2500
2000

Answer 11

3000psi

Question 12

The hydraulic system is designed so that the backup pumps will automatically start after an engine or main pump failure.
T
F

Answer 12

False

Question 13

In auto mode, the back up pumps for systems 1 and 2 operate whenever their respective bus is powered, any generator is operating and _______________.
The flaps are zerp
the flaps are not zero
the gear is down
there is no wow

Answer 13

The flaps are not zero

Question 14

The purpose of the CRJ’s main hydraulic accumulators (not the ones associated with the landing gear) are to:
Provide hydraulic pressure for emergency gear extension

Provide hydraulic pressure for emergency braking

Satisfies instantaneous demands and dampens out pressure surges

A and B above

Answer 14

Satisfies instantaneous demands and dampens out pressure surges

Question 15

There are no cockpit controls for the Engine Driven Pumps (1A and 2A)
t
f

Answer 15

True

Question 16

The three hydraulic systems of the CRJ are totally isolated from one another and do not share fluid in any way.
t
f

Answer 16

True

Question 17

The purpose of the Hydraulic Shutoff Valve is to isolate the applicable Engine Driven Pump in the event of a hydraulic leak or over-temperature. This would stop the flow of fluid and allow it to cool without having to shut down the engine.
t
f

Answer 17

True