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Flashcards in Hydraulics Deck (31):
1

What is the power source for the system B ELEC 1 hydraulic pump

AC 1

2

Which statement is true regarding the standby hydraulic system connection to other reservoirs

Connected to system B reservoir

3

A leak in the number two engine driven hydraulic pump will drain the B system reservoir to empty

False

4

What would be the first indication of a leak in the Standby Hydraulic System

System B quantity decreases

5

During cruise at FL 310, the pilots notice that the brake pressure reads 0 psi. System B pressure is 3000 psi and system B quantity is full. What is the problem

The brake accumulator precharge has leaked out

6

How is hydraulic fluid cooled

Heat exchangers in the respective main fuel tank

7

What occurs when a fire switch is pulled

Shuts off hydraulic fluid supply to respective engine driven pump

8

What would extinguish (disarm) a number one engine driven hydraulic pump LOW PRESSURE light

Pulling the respective fire switch

9

Which of the following are operated by the A hydraulic system

Alternate brakes for all main wheels

10

Which of the following is/are operated by the B hydraulic system

Normal brakes for all main wheels

11

What does an illuminated single hydraulic pump LOW PRESSURE light indicate

The pump output pressure is below acceptable limits

12

What does an illuminated hydraulic OVERHEAT light indicate

Electric pump overheat

13

When is the STANDBY HYD LOW QUANTITY light armed

Whenever the aircraft electrical buses are powered

14

When is the STANDBY HYD LOW PRESSURE light armed

When electric power is supplied to the standby pump

15

When performing the Standby Rudder Check (crew option) , what occurs when the B FLT CONTRoL switch is placed to OFF

The B system flight control valve closes and B system pressure is isolated from the primary flight controls

16

What occurs when the B FLT CONTROL switch is placed from OFF to STBY RUD position

All answers are correct

17

After placing a FLT CONTROL switch to STBY RUDDER, how is the open position of the standby rudder shutoff valve indicated

The respective FLT CONTROL LOW PRESSURE light extinguishes

18

When does the standby pump activate automatically

Loss of A or B system pressure with flaps extended with flaps extended while airborne, or on the ground with wheel speed greater than 60 knots

19

Which action turns on the STANDBY HYD pump

ALTERNATE FLAP master switch placed to ARM position

20

The Power Transfer Unit provides a backup source of hydraulic pressure (power) to operate

Leading edge flaps and slats

21

The electric hydraulic pumps of system A and B are equipped with thermal switches. What is the cockpit indication when a pump thermal switch activates

The respective OVERHEAT light illuminates

22

The Auto Slat system

Is normally powered by System B

23

Puling the #2 Fire Switch

Shuts off fluid to the engine driven hydraulic pump in System B

24

A standby system hydraulic leak is first indicated by

A decrease in B quantity indication

25

System A electric hydraulic pump is powered by which electrical power source(500)

Gen Bus #2

26

The Standby Hydraulic System provides hydraulic power to the

Rudder, thrust reversers, and leading edge devices

27

The normal brake system is powered by

Hydraulic system B

28

What is the minimum fuel quantity in each wing tank for operation of the electric hydraulic pumps on the ground

1676 pounds

29

The Standby System hydraulic pump is driven by

An electric motor

30

The Power Transfer Unit is driven by

Hydraulic pressure from system A

31

Which hydraulic system pumps must be turned OFF during pushback if the nosewheel steering bypass pin is not installed

System A