Pressurization

Question 1

How does the aircraft meter pressure in the aircraft

Answer 1

Let air out of the outflow valves

Question 2

How many outflow valves are there

Answer 2

Two
Pneumatic
Electro-pneumatic

Question 3

What valve is slaved to which one

Answer 3

Pneumatic to electro-pneumatic

Question 4

Which valve is being used in manual mode

Answer 4

Peumatic

Question 5

When does the cabin presurize

Answer 5

It pressurizes to 300 ft below field elevation on takeoff roll

Question 6

What is the max negative pressure differential

Answer 6

-0.03 PSI

Question 7

When does the cabin altitude light turns ON

Answer 7

10,000 ft cabin altitude

Question 8

What is the cabin pressure limiter does

Answer 8

Limits cabin altitude to 13,000 +- 1,500 ft

Question 9

When does the cabin pressure begins to climb on TO

Answer 9

15 seconds after the gear is up

Question 10

What cabin altitude we set when descending

Answer 10

300 ft below field elevation

Question 11

What altitude do we set the cabin to prior to the flight

Answer 11

1,000 ft above cruise

Question 12

How fast does the cabin climb or descend while the rate knob is in detent

Answer 12

650fpm up
45fpm down

Question 13

What happens when the cabin is dumped

Answer 13

Rapidly decompresses cabin to 13,000 ft

Question 14

Max differential prssure

Answer 14

7.2 PSI

Question 15

Normal differential pressure

Answer 15

7.0 PSI

Question 16

What happens to pressurization if you loose both main generators

Answer 16

Engine bleeds will fail close so no more pressurization available. The cabin will slowly leak

Question 17

Is cabin limiter available in MAN mode

Answer 17

No it bypasses altitude limiter

Question 18

How to evacuate smoke from the cabin other then DUMP

Answer 18

Use manual mode to depressurize the cabin. Move the manual controller form 1 o’clock position to the right to raise the cabin altitude thus remove the smoke form the cabin

Question 19

What should you consider when evacuation the aircraft after landing

Answer 19

DUMP the cabin on the on the approach so you don’t have to wait for the aircraft to depressurize

Question 20

Airplane is pressurized by means of

Answer 20

Conditioned air form air conditioning system

Question 21

Pressurization is controlled in

Answer 21

Automatic mode and Manual mode

Question 22

Which compartment is not pressurized

Answer 22

Avionics bay

Question 23

How many outflow valves control air discharge

Answer 23

Two

Question 24

In AUTO mode which valve operational

Answer 24

Pneumatic and Electro-pneumatic

Question 25

In manual mode which valves are operational

Answer 25

Only pneumatic

Question 26

With the engines and electrical system off

Answer 26

Both valves are closed

Question 27

The cabin climb rate may be set between

Answer 27

200-1,450 fpm

Question 28

The cabin descend rate may be set between

Answer 28

150-1,000 fpm

Question 29

On the ground engines are running and electrical system is on

Answer 29

Both vales are open

Question 30

Manual controller rate

Answer 30

UP 2,500 fpm
DN -1,500 fpm

Question 31

DUMP mode

Answer 31

Depressurizes at 14,400 fpm to 13,000 ft

Question 32

The AUTO mode of setting the pressurization is always used unless

Answer 32

There is an electrical failure
The AUPO system fails