HYDRAULICS

Question 1

Which pumps supply pressure to hydraulic system 2?
A Main pump ACMP 2A, backup pump ACMP 28
B. Main pump EDP 2A; backup pump PTU
C. Main pump ACMP 2A; backup pump PTU
D. Main pump EDP 2A; backup pump ACMP 28

Answer 1

B

Question 2

After a normal takeoff, when do the backup hydraulic pumps tum off?

A In cruise, when the thrust levers are set to cruise power
B. In the climb, after slats and flaps are fully retracted
C. When the backup pump switches are set to OFF
D. In the climb, when the gear is retracted

Answer 2

B

Question 3

What is the significance of the differential pressure indicator tab popping out of the filter manifold?
A. Indicates hydraulic fluid temperature was exceeded B. Indicates hydraulic fluid pressure was exceeded
C. Indicates filter is clogged
D. Indicates normal function

Answer 3

C

Question 4

If there is a total loss of AC power in flight, what provides pressure to hydraulic system 3?
A. ACMP 3B
B. Ram air turbine (RAT) only
C. ACMP 3B and 2B
D. ACMP 3B and the RAT

Answer 4

B

Question 5

What occurs when system 1 hydraulic fluid exceeds normal temperature?
A. The temperature readout on the HYD synoptic turns red
B.The left hydraulic shutoff valve closes and the L HYD SOV CLOSED advisory message shows on the EICAS
message shows on the EICAS
C. The L HYD OVERHEAT advisory message shows on the EICAS
D. The left EDP shuts down and a L EDP SHUTDOWN advisory message shows on the EICAS