Pressurization

Question 1

Which relief valve prevents ambient pressure from exceeding cabin pressure by an excessive amount?

Answer 1

Negative pressure relief valve

Question 2

What warnings will occur if the cabin altitude exceeds 10,000 feet?

Answer 2

The cabin altitude warning horn sounds

Question 3

How many DC motors are able to control the outflow valve?

Answer 3

Three

Question 4

What are the indications of a single auto controller failure?

Answer 4

AUTO FAIL light illuminated
ALTN light illuminated

Question 5

When does the cruise phase of the pressurization system start?

Answer 5

When the aircraft is within .25 PSI of the altitude set in the FLT ALT window.