11.16 Pneumatics And Vacuum

Question 1

ATA pneumatics

Answer 1

36

Question 2

Systems supplied by pneumatics

Answer 2

Air con
Starter motors
Air driven hydraulics
Pneumatic actuators

Question 3

Sources of pneumatics

Answer 3

Engine compressors

APU

Question 4

High pressure control valve

Answer 4

Is used to determine the source of engine compressor stage

Is electrically controlled and pneumatically actuated

Question 5

LP check valve

Answer 5

Prevents reverse flow to the engine

Question 6

Fan air valve

Answer 6

Regulates pneumatic supply temp

Question 7

Pressure regulating valve

Answer 7

Regulates pneumatic supply pressure

Is pneumatically actuated and electrically controlled

Question 8

Over pressure valve

Answer 8

Closes in case of malfunction

Question 9

Heat exchanger

Answer 9

Cool pneumatic air with tan

Question 10

Isolation valve

Answer 10

Used to split or connect different pneumatic systems

Question 11

APU bleed valve

Answer 11

Shut off or allows APU bleed air supply

Question 12

Pressure of pneumatics from engine

Answer 12

Approx 40psi

Question 13

Engine bleed air system

Answer 13

Consists of engine ( power source) and control devices