ENVIRONMENTAL

Question 1

With the pressurization source selector in the BOTH position, how many pounds per minute are available to pressurize and condition the cabin?

Answer 1

8 ppm

Question 2

Selecting the FRESH AIR position on the pressurization source selector will depressurize the cabin: T/F?

Answer 2

TRUE

Question 3

The pylon precoolers cool the engine bleed air from 800 degrees to what temperature?

Answer 3

500 degrees F

Question 4

Selecting the EMER position on the pressurization source selector will provide how much air to pressurize the cabin?

Answer 4

6 ppm of unconditioned air

Question 5

The air conditioning compressor will auto-shed when you climb above FL 180: T/F?

Answer 5

FALSE

Question 6

What is the purpose of the FLOOD position on the environmental panel?

Answer 6

All air is diverted out of a flood cooling vent near top of the pressure bulkhead

Question 7

With the temperature selector in the AUTO position, when will the compressor automatically disengage?

Answer 7

When 70% or more of the ram-air modulating value is closed

Question 8

The AIR DUCT O’HEAT annunciator light will illuminate when the temperature in the duct between the cabin heat exchanger and the aft pressure bulkhead reaches what temperature?

Answer 8

300 degrees F

Question 9

With the flow divider in the MAX position, what is the distribution of air to the cockpit and to the cabin?

Answer 9

90%

Question 10

To use the defog fan, select either HI or LO on the defog switch and verify that the compressor is in the AUTO position: T/F?

Answer 10

FALSE (Compressor is automatically turned on - no verification needed)