Pressurization

Question 1

How do you set up the pressurization controller for automatic mode?

Answer 1

1. Mode select switch - AUTO
2. Rate controller - full CCW
3. Auto Function switch - NORM
4. Manual Control - full CCW
5. Altitude control - to destination airport
6. Barometric control - to departure airport

Question 2

Will the aircraft remain pressurized if one of the air conditioning pack is turned off?

Answer 2

No

Question 3

Static pressure for the pressurization computer comes from?

Answer 3

Alternate Static Source

Question 4

Which outflow valve is used during the automatic mode?

Answer 4

Rear Master Outflow valve

Question 5

What does the rate knob control (what rate)?

Answer 5

Cabin rate of climb or descent

Question 6

When would you use CAB SET mode of the pressurization?

Answer 6

If direct control of cabin altitude is desired

Question 7

How do you use CAB SET mode?

Answer 7

Select CAB/NORM to CAB SET, Adjust ALT and RATE knobs to get the desired results

Question 8

What is the maximum controlled differential pressure?

Answer 8

5.5 +/- 0.3 PSI

Question 9

What protection are there against over pressurizing the aircraft?

Answer 9

Forward outflow safety valve and aft outflow valve have pressure limiters that open at 5.95 PSI

Question 10

When would you use manual pressurization?

Answer 10

Failure of the automatic controller, FAULT light comes on

Question 11

How is manual pressurization operated?

Answer 11

Switch the Mode Selector to MAN and rotat the manual control knob to adjust pressure

Question 12

What does the forward outflow valve selector do?

Answer 12

Opens the forward valve for emergency operations

Question 13

When does the CABIN PRESS warning light illuminate?

Answer 13

Cabin altitude 10,000 feet or higher