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787 U2021 > Hydraulics > Flashcards

Hydraulics Flashcards

1
Q

1) The center hydraulic system has an isolation function which:
A. Ensures the pilots can lower the landing gear.
B. Allows nose gear steering to be operational for landing, rollout and taxi.
C. Ensures hydraulic operation of the flap and slats.
D. A and B are correct.

A

1) The center hydraulic system has an isolation function which:
A. Ensures the pilots can lower the landing gear.
B. Allows nose gear steering to be operational for landing, rollout and taxi.

D. A and B are correct.

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2
Q 
2) Normal brakes are powered .
A. Hydraulically by the right system.
B. Hydraulically by the center system.
C. Electrically.
D. By the PMGs.
A

2) Normal brakes are powered .

C. Electrically.

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3
Q

3) The Center Demand pump operates .
A. On the ground for the first three minutes after the second engine is started.
B. During takeoff roll and gear retraction.
C. When flaps and slats are in motion.
D. All the above.

A

3) The Center Demand pump operates .
A. On the ground for the first three minutes after the second engine is started.
B. During takeoff roll and gear retraction.
C. When flaps and slats are in motion.
D. All the above.

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4
Q

4) The left hydraulic system powers which systems?
A. Alternate & Reserve brake system.
B. Flaps and Slats.
C. Some flight controls and left engine thrust reverser.
D. Stabilizer Trim.

A

4) The left hydraulic system powers which systems?

C. Some flight controls and left engine thrust reverser.

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5
Q

5) One hydraulic system provides adequate aircraft control.
A. True.
B. False.

A

5) One hydraulic system provides adequate aircraft control.

A. True.

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6
Q

6) With the left or right hydraulic demand pump selectors in the AUTO position, which of the following is true?
A. Pumps operate from takeoff thrust set to flaps retracted.
B. Pumps operate for three minutes after second engine is started.
C. Pumps operate during thrust reverser operation.
D. All the above.

A

6) With the left or right hydraulic demand pump selectors in the AUTO position, which of the following is true?
A. Pumps operate from takeoff thrust set to flaps retracted.
B. Pumps operate for three minutes after second engine is started.
C. Pumps operate during thrust reverser operation.
D. All the above.

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7
Q 
7) Which hydraulic pump(s) may be shed to allow the electrical system to provide power to other systems?
A. Center demand pump.
B. Left Demand Pump.
C. Right Demand Pump
D. All the above.
A 
7) Which hydraulic pump(s) may be shed to allow the electrical system to provide power to other systems?
A. Center demand pump.
B. Left Demand Pump.
C. Right Demand Pump
D. All the above.
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8
Q

8) The hydraulic isolation system ensures:
A. Stabilizer trim operation.
B. Pressure to the Reserve Brakes.
C. Landing gear can be lowered and nose wheel steering operates.
D. Pressure to the Normal Brakes.

A

8) The hydraulic isolation system ensures:

C. Landing gear can be lowered and nose wheel steering operates.

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9
Q

9) Which of the following will cause the RAT to deploy automatically in flight?
A. Loss of two electric motor pumps (EMP).
B. Loss of electrical power to the FOs flight instrument bus.
C. Loss of any two engine starter generators.
D. Left, Center, and Right Hydraulic pressure low.

A

9) Which of the following will cause the RAT to deploy automatically in flight?

D. Left, Center, and Right Hydraulic pressure low.

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10
Q

10) What component(s) does the RAT hydraulically power?
A. Alternate gear extension system.
B. Normal brakes (after landing and airspeed below 60 knots).
C. Primary flight control components normally powered by the center hydraulic system.
D. Flaps and Slats.

A

10) What component(s) does the RAT hydraulically power?

C. Primary flight control components normally powered by the center hydraulic system.

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11
Q

11) Autoland is inoperative for which of the following conditions?
A. Center primary hydraulic pump pressure is low.
B. Right hydraulic demand pump is inoperative.
C. Center hydraulic failure.
D. Left and right hydraulic system pressure is low.

A

11) Autoland is inoperative for which of the following conditions?

D. Left and right hydraulic system pressure is low.

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12
Q

12) What happens if both the C1 and C2 Pump selectors are positioned to ON at the same time?
A. Both pumps will run.
B. Only the C2 pump will operate.
C. Only the C1 pump will operate.
D. Both the C1 and C2 pumps will operate only if the gear is extended.

A

12) What happens if both the C1 and C2 Pump selectors are positioned to ON at the same time?
A. Both pumps will run.

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13
Q 
13) Which of the following components are powered by the right hydraulic system?
A. The Ram Air Turbine.
B. Some flight controls.
C. Right engine thrust reverser.
D. Both B and C are correct.
A

13) Which of the following components are powered by the right hydraulic system?

B. Some flight controls.
C. Right engine thrust reverser.
D. Both B and C are correct.

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14
Q

14) The Ram Air Turbine (RAT) must be manually deployed?
A. True.
B. False.

A

14) The Ram Air Turbine (RAT) must be manually deployed?

B. False.

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15
Q

15) The primary hydraulic pump FAULT lights illuminate (amber) when the following occurs:
A. Low primary pump pressure.
B. Excessive primary pump fluid temperature.
C. Pump Selector to OFF.
D. All the above.

A

15) The primary hydraulic pump FAULT lights illuminate (amber) when the following occurs:
A. Low primary pump pressure.
B. Excessive primary pump fluid temperature.
C. Pump Selector to OFF.
D. All the above.

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16
Q

16) In the AUTO position, the right hydraulic system demand pump:
A. Operates from takeoff thrust set to flaps retracted.
B. Operates when system, or primary pump pressure is low.
C. Operates with right thrust reverser deployment.
D. All the above.

A

16) In the AUTO position, the right hydraulic system demand pump:
A. Operates from takeoff thrust set to flaps retracted.
B. Operates when system, or primary pump pressure is low.
C. Operates with right thrust reverser deployment.
D. All the above.

17
Q 
17) Where would you find hydraulic quantity indications?
A. Secondary Engine Instruments.
B. Status Display.
C. Hydraulic Synoptic.
D. Both B and C.
A

17) Where would you find hydraulic quantity indications?

B. Status Display.
C. Hydraulic Synoptic.
D. Both B and C.

787 U2021 (19 decks)

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