Manual Mode Operation

Question 1

Full range motion of outflow valve

Answer 1

20s

Question 2

Higher Cabin al required

Answer 2

OPEN valve
Cabin Alt climb
Diff Pressure decreases

Question 3

Lower Cabin Alt required

Answer 3

Close outflow valve
Cabin Alt decrease
Diff press increases

Question 4

During descent, thrust lever changes

Answer 4

Made slowly, prevent excessive bumps

Question 5

During descent, outflow valve control?

Answer 5

Outflow valve switch momentarily close, observing cabin alt decrease as airplane descends. Before entering landing pattern, slow position outflow valve to FULL open to depressurize the AC. Very Diff press is ZERO