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UAL 787 SKV > Hydraulics > Flashcards

Hydraulics Flashcards

1
Q

The center hydraulic system has an isolation function which: [8.130.10]

A
  • Ensures the pilots can lower the landing gear.
  • Allows nose gear steering to be operational for landing, rollout and taxi.
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2
Q

Normal brakes are powered: [8.140.10]

A

Electrically.

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3
Q

The Center Demand pump operates: [8.130.10]

A

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

The left hydraulic system powers which systems? [8.130.10]

A

Some flight controls and left engine thrust reverser.

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5
Q

One hydraulic system provides adequate airplane control. [8.130.10]

True or False?

A

True.

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6
Q

With the left or right hydraulic demand pump selectors in the AUTO position, which of the following is true? [8.130.10]

A

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

Which hydraulic pump(s) maybe shed to allow the electrical system to provide power to other systems? [8.130.10]

A

A. Center Demand Pump.
B. Left Demand Pump.
C. Right Demand Pump.
D. All of the above.

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8
Q

The hydraulic isolation system ensures: [8.130.10]

A

Landing gear can be lowered and nose wheel steering operates.

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9
Q

Which of the following will cause the RAT to deploy automatically in flight? [8.130.10]

A

Left, Center, and Right Hydraulic pressure low.

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10
Q

What component(s) does the RAT hydraulically power? [8.130.10]

A

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

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11
Q

All 3 hydraulic systems will provide up to 4000 psi per system, L,C,R.? [8.130.10]

True or False?

A

False.

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12
Q

What happens if both the C1 and C2 Pump selectors are positioned to ON at the same time? [8.130.20]

A

Both pumps will run continuously.

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13
Q

Which of the following components are powered by the right hydraulic system? [8.130.10]

A
  • Some flight controls.
  • Right engine thrust reverser.
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14
Q

The Ram Air Turbine (RAT) must be manually deployed? [8.130.10]

True or False?

A

False.

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15
Q

The primary hydraulic pump FAULT lights illuminate (amber) when the following occurs: [8.130.20]

A

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

In the AUTO position, the right hydraulic system demand pump: [8.130.10]

A

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 of the above.

17
Q

Where would you find hydraulic quantity indications? [8.130.20]

A
  • Status Display.
  • Hydraulic Synoptic.

UAL 787 SKV (15 decks)

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