Chapter 7 - Environmental Control Systems Flashcards

1
Q

When is the emergency pressurization activated?

A

9500-ft cabin altitude

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2
Q

When is the auto pressurization control disabled?

A

8600-ft cabin altitude

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3
Q

When do the cabin altitude limiters close?

A

13, 700-ft cabin altitude

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4
Q

When does the cabin altitude warning horn sound?

A

10, 100-ft cabin altitude

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5
Q

What automatically turns the auxiliary cabin heat off?

A

Turning the cabin air switch ON

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6
Q

While on the ground, what automatically removes power from Freon air?

A

Engaging a starter

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7
Q

What happens when the DUCT OVHT annunciator illuminates?

A

Temperature control valve closes

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8
Q

What is the maximum cabin differential pressure?

A

9.8 psi

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9
Q

What does pushing the EMER DEPRESS switch do?

A

Causes both overflow valves to open until the cabin altitude reaches 13, 700 ft

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10
Q

What differences occur during a takeoff or landing above 8000 ft?

A

Pressurization warning and safety features to reschedule to 13, 700-ft cabin altitude

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