Pneumatics

Question 1

23 PSI regulated service air provides

A. Cabin temperature control

B. Wing anti-ice capability

C. Preserization vacuum

D. High pressure air to the ACM

Answer 1

C

Question 2

Illumination of the DOOR SEAL annunciator is indicated by

A. Cabin door seal valve

B. <5 psi pressure switch

C. Door licking microswitch

D. Door handle microswitch

Answer 2

B

Question 3

The purpose of service air through vacuum ejectors is

A. Provide cabin door seal vacuum

B. Provide vacuum for the pressurisation system and the Deice boots

C. Provide vacuum for the door acoustic seal

D. ACM water separator vacuum

Answer 3

B

Question 4

23PSI service air provides operating pressure for yeah sure for

A. Throttle detents and deicer boots

B. Standby gyro pressure

C. Emergency release of the gear unlocks

D. For the whee brakes accumulator

Answer 4

A

Question 5

If the DOOR SEAL annunciator illuminates in flight

A. Descend to FL410 or lower

B. Have the co-pilot check the door

C. Begin an emergency Descent and declare the emergency

D. Don oxygen masks

Answer 5

A