ECS/Press/Pneu

Question 1

Question: When would the aircraft do an Emergency Descent (EDM) and what will the aircraft do?

Answer 1

Answer: Cabin Pressure Low EDM ≥ 25,000 feet, Auto Pilot ON, Auto Throttles ON or OFF SPEED target on flight guidance panel changes to 340 KCAS in MANUAL mode.

ALTITUDE preselect is set to 15,000 feet
Autopilot commands a left turn with a 90-degree heading change in the HEADING HOLD mode Autothrottles engage (if not engaged) and decreases engine throttles to Idle
Airplane descends at MMO / VMO to 15,000 feet
Speed brakes extend automatically as airspeed increases above 0.91M / 315 KCAS (Speed brake extension will stop if AOA increases above 0.7. Once AOA reduces below 0.7 Speed brake extension will continue).

Speed brakes auto retract with airspeed less than 275 KCAS
15,000 feet, the SPEED target changes to 250 KCAS
Aircrew may override EDM by disconnecting the Autopilot

Question 2

Question: What is the FIRST step in the checklist after experiencing a rapid decompression?

Answer 2

Answer: Crew Oxygen Masks…………….Don

Question 3

Question: You declare an emergency, utilizing the TSC how can you find the closest airport to safely land at?

Answer 3

Answer: TSC,/ Flight Plan page,/ Aircraft Menu

Question 4

Question: Maximum Cabin Pressure Differential Permitted:

Answer 4

Answer: 10.69 psi

Question 5

Question: When would pressure relief valve start to relieve pressure?

Answer 5

Answer: There are two different chambers: one relieves pressure at 10.80 the other at 11.00.

Question 6

Question: What is the temperature range in automatic?

Answer 6

Answer: 60-90°F

Question 7

Question: What is the temperature restrictions for operating in Manual Zone Temperature Control?

Answer 7

Answer: Duct Temperature less than 200°F

Question 8

Question: What is temperature range in manual?

Answer 8

Answer: 0 to 100 % - Full cold 35°F to full hot 230°F with the midpoint approximately 130°F.

Question 9

Question: How can you select RAM AIR?

Answer 9

Answer: Select RAM AIR on the OHPTS / ECS / RAM AIR to turn off BOTH Packs.

Question 10

Question: What type of air ALWAYS comes from the overhead gaspers?

Answer 10

Answer: Cold

Question 11

Question: Automatic pressurization is available down to what source of power?

Answer 11

Answer: Main batteries (ESS Power), (CPCS Channel 1)

Question 12

Question: In manual mode, how would you determine the rate of TROV movement?

Answer 12

Answer: By observing the indicator on overhead panel. (HYD/CPCS)

Question 13

Question: During Cockpit Inspection there is a Fault Light illuminated in the Fault/Manual control switch located on the overhead panel at the Cabin Pressure Control Panel, what does that mean?

Answer 13

Answer: A fault has been sensed by the Cabin Pressure Control Unit, or both CPCU 1 and CPCU 2 have failed.

Question 14

Question: Where is the Pressurization SEMI selection located?

Answer 14

Answer: OHPTS, HYD/CPCS

Question 15

Question: Where are the controls for operating the SEMI mode located?

Answer 15

Answer: TSC / SYSTEMS / CPCS

Question 16

Question: How should the Bleed Air Panel on the overhead be configured when conducting the Airplane Power Up Checklist?

Answer 16

Answer: L ENG / APU / R ENG switches IN; Isolation switch OUT.

Question 17

Question: Is it possible to operate both packs from 1 bleed system?

Answer 17

Yes

Question 18

Question: During the descent when will the controller begin descent to the landing field elevation?

Answer 18

Answer: Descending through altitude 1000 ft. below your cruising altitude

Question 19

Wing Anti Ice is required while operation on single bleed source:

Question: What is the MAX Altitude allowed?

Answer 19

FL350

Question 20

Question: What is the caution associated with using external air?

Answer 20

Answer: Do not connect external air with electrical power OFF.

Question 21

Question: What computers control the operation of the Bleed Air System?

Answer 21

Answer: Bleed Air Controllers (BACs)

Question 22

Question: What precooler outlet temperature would you expect under normal operating conditions?

Answer 22

Answer: 400°F