Air Conditioning, Pressurization, Pneumatics, Ice & Rain

Question 1

How many ways are there to OPEN the Bleed Air Isolation Valve?

Answer 1

• CRANK MASTER switch
• START MASTER switch
• APU BLEED AIR switch
• MANUALLY

Question 2

When will the APU Bleed Switch open the Isolation Valve?

Answer 2

60 seconds after the APU reaches 100%

Question 3

The 8th stage bleed air augments the 5th stage. Can you select 8th bleed air ON?

Answer 3

NO - it is opened automatically by the Bleed Air Controller (BAC)

Question 4

14 psi, 24 psi, and 35 psi are three set point trigger values in the BAC (Bleed Air Controller) to kick in the 8th stage Bleed Air. What operation mode causes this?

Answer 4

• 14 psi (normal)
• 24 psi (low power settings: descent / holding) normal
• 35 psi (single pack operations)
• 40 psi (max)

Question 5

What is the minimum pack pressure for single pack operation?

Answer 5

35 psi

Question 6

The BLEED AIR CONFIGURATION CAS message illuminates for?

Answer 6

• APU & ENGINE BLEED AIR selected simultaneously

- ISOLATION VALVE OPEN with BOTH ENGINE BLEED AIR switches selected ON

Question 7

What is the temperature range in AUTO?

Answer 7

60F - 90F

Question 8

What is the temperature range in MANUAL?

Answer 8

35F - 230F

Question 9

If the AUTO TEMP SELECT pushbutton is selected OFF and the TEMP DISPLAY button is Selected to DUCT, the digital temperature readouts reflect the:

Answer 9

Actual Temperature in the supply ducts to the air conditioned areas

Question 10

What happens when you select the RAM AIR switch?

Answer 10

• Both AC packs turn off

- A/C depressurizes at cabin leak rate

Question 11

The TROV is electrically operated in response to the Cabin Pressure Controller (CPC) what are the modes of operation?

Answer 11

• AUTO
• SEMI
• MANUAL

Question 12

During takeoff and departure, climbing to FL410, automatic anti-icing is inhibited:

Answer 12

Below 1,500 feet AGL and above 35,000’

Question 13

Automatic anti-ice is available during descent and landing when:

Answer 13

From 35,000’ to landing

Question 14

With WING ANTI-ICE operating, the Bleed Air Controller (BAC) maintains the wing leading edge at a temperature of:

Answer 14

130F

Question 15

When the CABIN WINDOW HEAT switch is pushed on the ground, the switch capsule should:

Answer 15

Illuminate OFF (BLUE)

Question 16

The EVS switch on the overhead panel applies heat for:

Answer 16

Two (2) minutes until it turns off or when it detects a temperature higher than 14F

Question 17

During taxiing or holding on the ground at low power settings in temperatures less than +1C, it is recommended that just prior to takeoff the engine should be:

Answer 17

Accelerated to 40% LP RPM for 10 seconds and at intervals of 1 hour.

Question 18

How many motors are available for pressurization TROV operation?

Answer 18

Three (3), 2 for Automatic, and 1 for Manual

Question 19

What are the power sources for the pressurization motors?

Answer 19

• Two (2) A/C (AUTO/SEMI)

- One (1) D/C (MANUAL)

Question 20

In AUTO, where does the pressurization information come from?

Answer 20

MCDU

Question 21

Maximum cabin pressure differential (psi) permitted for taxi, takeoff, and landing is:

Answer 21

0.3 psi

Question 22

What are the trip points for the Cabin Pressure Relief Valve?

Answer 22

• Cabin Differential 10.28 Amber CAS
• Cabin Differential 10.48 Red CAS
• Negative Differential pressure relief at -0.25psi

Question 23

The pressurization system will change from LANDING to FLIGHT when:

Answer 23

• Taxi speed is EQUAL OR GREATER than 8 knots

- Power levers advanced fifteen (15) degrees forward

Question 24

What are the “Cabin Pressure Low” CAS Trip Points?

Answer 24

• 8000’ - LFE (Landing Field Elevation) less than 7,500
• 10,000’ - LFE greater than 7,500’, but less than 9,500
• 14,500’ - LFE greater than 9,500’
• 10,000’ - Manual Mode
  14,750’ (+/-250) Cabin Altitude / Oxygen Masks drop down automatically)

Question 25

Activation of the EDM (Emergency Descent Mode) will result in the aircaft:

Answer 25

• Turning left 90 degrees
• Descending to 15,000’
• At 340 KCAS (MAN)
• Once at 15,000’ speed target changes to 250 KCAS (MAN)
• NOTE: Autopilot must be engaged / Autothrottles will engage if disengaged.

Question 26

What conditions must exist for EDM to activate?

Answer 26

• Aircraft Altitude above 40,000’

- Autopilot Engaged

Question 27

What airspeed will automatically enter on the Guidance Panel Speed window during EDM?

Answer 27

• 340 KCAS (MAN)

- 250 KCAS (MAN) once level off at 15,000’

Question 28

Can Guidance Panel heading be changed during EDM?

Answer 28

NO

Question 29

AUTO ANTI-ICE protection terminates in what sequence after the ice detectors no longer sense the presence of ice?

Answer 29

• After 1 minute: ICE DETECTED L/R CAS message is removed
• After 3 minutes: COWL ANTI-ICE valves close
• After 5 minutes: WING ANTI-ICE valves close

Question 30

If the APU is operating when pushing the ICE DET test button, ensure the:

Answer 30

• WING ANTI-ICE switches are selected OFF
• NOTE: Wing Anti-Ice valve will open and the APU LCV(Load Control Valve) will try to increase APU bleed air output to satisfy WING anti-ice demand. Not a good thing for the APU.

Question 31

When pushing the ICE DET button, the following CAS messages appear:

Answer 31

• ICE DETECT FAIL, L/R

- ICE DETECTED L/R

Question 32

What must you do is anti-ice is selected ON for takeoff?

Answer 32

Anti-ice must be selected in the MCDU for TAKEOFF INIT page 4/5 in order for the V Speeds to BOX

Question 33

During pre-flight, when the CABIN WDO HT switch is selected ON:

Answer 33

• OFF (BLUE) legend should illuminate in the switch.

If the OFF (BLUE) legend does NOT illuminate:

• Select the CABIN WDO HT switch to OFF, then
• Ensure the CABIN WDW HTRS GROUND BYPASS switch at the Observers Seat panel is selected OFF.

Question 34

The WSHL BLWR (if installed) operates:

Answer 34

Ground Only (WOW)