Systems Air Systems

Question 1

What is the function of the Air Conditioning PACK Switch when positioned to HIGH?

Answer 1

Pack operates in high flow only

Question 2

Explain the meaning of an illuminated CONT CAB ZONE TEMP light. (Not on Master Caution Recall)

Answer 2

Indicates a failure of the flight deck primary and standby temperature control

Question 3

What could an illuminated PACK light indicate? (not on Master Caution Recall)

Answer 3

Pack trip off
Failure of both primary and standby pack controls

Question 4

What is the indication of an E and E overheat on the ground?

Answer 4

Alert provided through the crew call horn in the nose wheel well

Question 5

How can a pilot reset a ZONE TEMP, PACK, or BLEED TRIP OFF light?

Answer 5

Press the trip reset button

Question 6

What is the function of the APU BLEED Air Switch?

Answer 6

OFF - Closes APU bleed air valve
IN - Opens APU bleed air valve when the APU is operating

Question 7

What condition could cause the illumination of a WING-BODY OVERHEAT light?

Answer 7

A bleed air duck leak in an engine strut

Question 8

What is the function of the Engine BLEED Air Switches?

Answer 8

OFF - Closes engine bleed air valve
ON - Opens engine bleed air valve when engines are operating

Question 9

The Pressurization Mode Selector allows the pilot to select which of the following pressurization mode(s)?

Answer 9

Manual
Automatic
Alternate

Question 10

The Cabin Altitude Warning horn sounds when the Cabin Altitude exceeds:

Answer 10

10,000 Ft