Hydraulics Atlas

Question 1

How many hydraulic systems are there on the B767?

Answer 1

Three

Question 2

How can you monitor the hydraulic pressure of a particular system?

Answer 2

EICAS status page

Question 3

Which condition requires use of the reserve brakes and steering switch?

Answer 3

Loss of centre hydraulic system

Question 4

The centre hydraulic system is powered by?

Answer 4

Two electric primary pumps
One air driven demand pump

Question 5

The OVHT light above the left electric pump switch would indicate?

Answer 5

The left electric pump is overheated

Question 6

The flaps and landing gear powered by which system?

Answer 6

Centre hydraulics

Question 7

The fluid below the stand pipe in the centre reservoir is used by what system?

Answer 7

The reserve breaks and steering

Question 8

The hydraulic driven generator is powered from which system?

Answer 8

Centre

Question 9

What does the hydraulic system SYS PRESS light indicate?

Answer 9

Low hydraulic system pressure

Question 10

What does the hydraulic system QTY light indicate?

Answer 10

Low hydraulic reservoir quantity

Question 11

What is the normal position of the left and right engine hydraulic pump switches?

Answer 11

On at all times

Question 12

How does pulling an engine fire switch affect the hydraulic system?

Answer 12

Closes the engine hydraulic pump shut off valve and depressurises the engine pump

Question 13

Which of the following indicates the RAT is producing hydraulic pressure?

Answer 13

RAT pressure light illuminated

Question 14

What is powered by the RAT?

Answer 14

Flight controls only

Question 15

What position should the electric demand hydraulic pump selectors be in before the electrical power up procedure SP.6.1.is accomplished?

Answer 15

Off

Question 16

What is the RAT status with the PRESS and UNLKD lights extinguished?

Answer 16

Locked, not providing hydraulic power

Question 17

Which pumps are operating when the engine primary pumps are not operating?

Answer 17

Left and right electric demand pumps

Question 18

When will the engine primary pump produce pressure?

Answer 18

When the engine rotates

Question 19

What type of demand pump powers the left and right hydraulic systems?

Answer 19

Electrically driven

Question 20

With the selector in AUTO, when will the left and right demand pumps operate?

Answer 20

When engine pump pressure is low

Question 21

What is indicated with the UNLKD and the PRESS green light illuminated?

Answer 21

RAT is Extended and is providing hydraulic power

Question 22

Which hydraulic system pump powers the reserve brake and steering system?

Answer 22

C1 pump

Question 23

What does a hydraulic reservoir quantity indication of 0.95 mean? As displayed on the STATUS page?

Answer 23

95% of normal service level

Question 24

Which reservoir contains the hydraulic fluid for reserve breaks and steering?

Answer 24

Centre

Question 25

What is indicated by the VALVE amber light in the reserve breaks and steering switch?

Answer 25

Control valve/s disagree with switch position

Question 26

The APU is providing electrical power prior to engine start. Why is the number two centre system electric pump low pressure light on?

Answer 26

Pump operation is inhibited to reduce electrical loads. Load shed

Question 27

The extension of the wing flaps may interrupt the operation of the HDG true or false?

Answer 27

True

Question 28

When are the flight control shut off switches used?

Answer 28

Ground use only by maintenance