Pneumatic system

Question 1

the oxygen system supplies 19 persons oxygen for a min. of how many minutes?

Answer 1

25 mins

Question 2

purpose of the cabin pressure relief system?

Answer 2

Protects the plane structure from overpressure and negative pressure if the pressurization control system fails

Question 3

Max. allowable cabin altitude?

Answer 3

8,000 ft

Question 4

sources of pneumatic power?

Answer 4

• engine 1&2 bleed air system
• apu bleed air system
• pneumatic ground air connection

Question 5

pneumatic system supplies pressurized air to which systems?

Answer 5

• engine starting system
• air conditioning
• engine inlet cowl anti ice system
• wing thermal anti ice system
• water tank pressurization system
• hydraulic reservoir pressurization systems