Pneumatics

Question 1

1. The EMER position can be selected ON by the AIR SOURCE SELECT knob and the air source is:

Answer 1

B. Either/both engine bleed air through the windshield heat exchanger and regulated by the EMER valve

Question 2

2. The systems that use pneumatic bleed air for operation are:

Answer 2

B. Windshield anti-ice, rudder bias, cabin heat exchanger, and emergency pressurization.

Question 3

3. The left and right PRSOVs, when open, route engine bleed air to feed:

Answer 3

A. Left and right FCVs at 5 ppm (total 10 ppm) and cabin heat exchanger for normal heating, cooling, and pressurization.

Question 4

4. Selection of the FRESH AIR position on the
   AIR SOURCE SELECT knob draws pylon ram inlet air to:

Answer 4

D. Both B and C

B. Circulate air during unpressurized ground/inflight operations
C. Turn on a fan to the lower ducts