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E175 > Hydraulics > Flashcards

Hydraulics Flashcards

1
Q

Hydraulic System #1 receives pressure from which engine?

A

Engine #1

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2
Q

Hydraulic System #3 provides hydraulic pressure to _______.

A

elevator,
rudder,
aileron

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3
Q

True or False: Hydraulic System #3 is normally pressurized by ACMP 1B.

A

False

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4
Q

True or False: There is only one way to close the hydraulic shutoff valves in each
Engine.

A

False

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5
Q

True or False: Both Hydraulic System #1 and #2 main pumps are driven by their
respective engine’s accessory gear box.

A

True

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6
Q

Nominal hydraulic system pressure is _______ PSI.

A

3,000 psi

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7
Q

When a hydraulic EDP fails, what color “X” is displayed on the hydraulic synoptic
Page?

A

amber

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8
Q

There are a total of _______ AC electrically-driven hydraulic pumps (ACMPs).

A

4

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9
Q

True or False: All three hydraulic systems have an EDP and an ACMP.

A

False

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10
Q

Hydraulic System #1 can be pressurized by _______.

A

EDP (1A) driven by left engine
or ACMP (1B) powered by bus 2

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11
Q

Which hydraulic ACMP pump can be powered by the RAT in the event of an AC
power failure?

A

ACMP 3A

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12
Q

True or False: Engine #1 and #2 hydraulic shutoff valves can be closed by pulling
the respective engine’s fire handle.

A

True

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13
Q

Which of the following statements is true regarding the accumulators in the three
hydraulic systems?

A

Helps maintain a constant pressure during transient demands

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14
Q

True or False: The hydraulic SOVs automatically close when fluid temperature
reaches 125 degrees C.

A

True

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15
Q

The EDPs normally deliver hydraulic fluid at _______ PSI to the associated
system’s consumers.

A

3,000 psi

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16
Q

The AC powered pumps in the hydraulic system include _______.

A

ACMPs:
1B & 2B,
3A & 3B

17
Q

The ACMPs for Hydraulic System #1 and Hydraulic System #2 are normally left in
the _______ position.

A

auto

18
Q

True or False: The PTU is used to assist in landing gear operation should the left
engine or left EDP fail.

A

False

[Should the right engine or right EDP fail]

19
Q

True or False: The PTU allows for fluid transfer between all 3 hydraulic systems.

A

False

20
Q

The PTU is associated with hydraulic systems _____ and _____.

A

1, 2

E175 (23 decks)

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