Pressurization

Question 1

Cabin pressurization is controlled by discharge of cabin air through…
-the forward outflow valve.
-the forward and aft outflow valves.
-the negative pressure relief valves.
-the positive pressure relief valves.

Answer 1

the forward and aft outflow valves.

Question 2

Aircraft pressurization can be monitored on the…
-CDU screen.
-AUX display screen.
-EICAS display.
-TCP panel.

Answer 2

EICAS display.

Question 3

The pressurization system uses __________________________ to calculate a cabin pressurization schedule.
-IRS inputs and FMC flight plan data
-ambient pressure and FMC flight plan data
-differential pressure and GPS flight plan data
-true airspeed data and MCP inputs

Answer 3

ambient pressure and FMC flight plan data

Question 4

In the cruise mode, the cabin altitude will normally remain below…
-8000 ft.
-7000 ft.
-6500 ft.
-6000 ft.

Answer 4

6000 ft.

Question 5

If the cruise altitude is not available in the AUTO mode the default cruise altitude is…
-40,000 ft.
-42,000 ft.
-43,000 ft.
-39,000 ft.

Answer 5

43,000 ft.

Question 6

The landing altitude is normally obtained from the FMC, however the landing altitude can be set manually by…
-setting a new altitude in the MCP altitude window.
-changing the destination on the TCP panel.
-pulling the LDG ALT selector out and setting a new altitude.
-cycling the OUTFLOW VALVE switches to upper case MAN and back to AUTO.

Answer 6

pulling the LDG ALT selector out and setting a new altitude.

Question 7

During a rapid depressurization the outflow valves will close until the aircraft reaches ____________ and then the outflow valves will fully open.
-8,000 ft.
-10,000 ft.
-12,500 ft.
-15,000 ft.

Answer 7

15,000 ft.