SYSTEMS

Question 1

AT WHAT STAGE IN FLIGHT WILL A REACTIVE WINDSHEAR OPERATE?

Answer 1

Provided by the FAC in T/O & APP phase:

At T/O, 3s after lift off - 1300ft RA

At landing, 1300ft - 50ft

At least CONFIG 1

Visual “WINDSHEAR” red msg onPFD’s 15s & aural warning X3

Question 2

WHAT ARE THE UNPRESSURISED AREAS?

Answer 2

• Radar Cone
• Nose Gear Bay
• AIR COND compartment
• Main GEAR bay
• Tail cone

FCOM-A/C GEN-20-20

Question 3

HOW IS THE CABIN/COCKPIT TEMP CONTROLLED?

Answer 3

Via the AIR COND panel. Temp regulation is ensured by 2 Air Conditioning System Controllers (ACSC) which both have 2 lanes.
Regulated via the HOT AIR pressure regulating valve, TRIM AIR VALVES (add HOT air), tapped upstream of the packs, to the air from the mixing unit.

FCOM-A/C SYSTEMS-21-10-AIR CON

Question 4

HOW DOES THE PACK FLOW CONTROL VALVE OPERATE?

Answer 4

The valve is PNEUMATICALLY operated and ELECTRICALLY controlled. It gets its signals from ACSC.
If NO air pressure then a spring keeps it closed.
Valve automatically closes in the event of OVERHEAT, ENG START, operation of fire PB’s or ditching PB.

FCOM-A/C SYSTEMS-21-10-20

Question 5

WHAT IS THE EMERGENCY RAM AIR USED FOR?

Answer 5

To ventilate the cockpit/cabin to remove smoke or if both packs fail. Operated via RAM AIR PB, outflow valve moves to 50% position.

FCOM-A/C SYSTEMS-21-10-20

Question 6

WHERE IS THE AIR SUPPLIED VIA?

Answer 6

It is fully automatic.
Supplied via:
-2 PACK flow control valves
-2 PACKS
- the mixing unit, from the cabin and packs

FCOM-A/C SYSTEMS-21

Question 7

WHAT ARE THE PACK FLOW %’S WHEN SELECTED IN LO/NORM/HI?

Answer 7

LO - 80%

NORM - 100%

HI - 120%

FCOM-A/C SYSTEMS-21-10-50

Question 8

WHAT ARE THE FOUR FUNCTIONS OF CABIN PRESSURISATION?

Answer 8

• GND- Fully opens outflow valve on the GND.
• Prepressurisation -During T/O, increases cabin pressure to avoid a surge in pressure during rotation.
• IN FLIGHT-Adjusts cabin altitude for PAX comfort.
• Depressurisation-After touchdown, gradually releases residual cabin pressure before GND function.

FCOM-A/C SYSTEMS-21-20-10

Question 9

WHAT DOES THE CABIN PRESSURISATION SYSTEM COMPRISE OF?

Answer 9

• 2 Cabin Pressure Controllers CPC
• 1 Residual Pressure Control Unit RPCU
• 1 Outflow valve (1 actuator that has 3 motors, 2 auto & 1 manual)
• 1 control panel
• 2 Safety Valves

FCOM-A/C SYSTEMS-21-20-10

Question 10

WHERE DO THE CPC’s RECEIVE SIGNALS FROM?

Answer 10

• ADIRS
• FMGC
• EIU
• LGCIU
• EMER RAM AIR

FCOM-A/C SYSTEMS-21-20-20

Question 11

WHAT DOES ‘OPT ALT’ MEAN ON THE CRUISE PAGE?

Answer 11

Optimum Flight Level. lowest cost for a given flight plan, cost index & gross weight. The FM updates this figure during the flight.

Question 12

WHEN DOES THE ‘RAT’ AUTOMATICALLY DEPLOY?

Answer 12

When AC BUS 1 & 2 are lost.

Question 13

WHAT IS THE MAXIMUM ALTITUDE FOR THE GEAR BEING EXTENDED?

Answer 13

25,000FT

Question 14

WHEN IS THE PTU INHIBITED?

Answer 14

• During 1st ENG start and self tests during 2nd ENG start.

- also inhibited during & 40s after automatic operation (opening or closing cargo doors) of the yellow electric pump

Question 15

ABOVE WHAT SPEED WILL AUTOBRAKE MAX OPERATE IN A REJECTED T/O?

Answer 15

72kt

Question 16

AT WHAT SPEED DOES THE NWS STOP?

Answer 16

130kt

Question 17

AT WHAT HEIGHT CAN THE AUTOPILOT BE USED ON T/O?

Answer 17

100ft

5s after lift off

Question 18

WHAT IS ‘SAT’ & ‘TAT’?

Answer 18

• SAT = Static Air Temp, outside air temp

- TAT = True Air Temp, surface of the skin temp. usually warmer due to air compression.

Question 19

WHICH HYDRAULIC SYSTEM RUNS THE NORMAL BRAKES?

Answer 19

GREEN

Question 20

NAME THE 4 DIFFERENT TYPES OF BRAKING

Answer 20

NORMAL
ALTERNATE WITH ANTI-SKID
ALTERNATE WITHOUT ANTI-SKID
PARKING BRAKE

Question 21

TALK ABOUT THE BANK PROTECTIONS

Answer 21

• If >33’ and sidestick released the A/C will return to 33’
• Limit is 67’
• if AOA or Highspeed protections activated then limited to 45’
• AUTOTRIM inhibited above 33’

Question 22

WHAT ARE THE PITCH LIMITS

Answer 22

• +30’ Nose up in CONF 0-3
• +25’ Nose up in CONF FULL
• -15’ Nose down

Question 23

TALK ABOUT ‘ALPHA FLOOR’

Answer 23

• Automatically sets TOGA when A/C reaches high AOA
• FAC generates signal
• Available from lift off to 100ft
• ALPHA FLOOR - TOGA LK, disconnect autothrust to regain control of thrust.

Question 24

HIGH SPEED PROTECTION WHAT DOES IT DO?

Answer 24

• Automatically recovers from high speed upset.
• ALARM Activates at VMO +6kt/MMO +M0.01
• Pitch trim is frozen, A/C roll to 0’. Bank angle is limited to 45’
• Nose up order applied at VMO+16kt

FCOM DSC-27-20-10-20

Question 25

WHEN DOES THE PTU OPERATE?

Answer 25

500psi difference

Question 26

WHAT IS THE PROCEDURE FOR "IF WET:RWY TOO SHORT"?

Answer 26

ROW alert If RWY wet or contaminated then GO AROUND. Arms at 400ft agl to start of braking FCTM AS-ROW/ROP

Question 27

WHEN IS THE "ROP" FUNCTIONING?

Answer 27

From start of braking until the A/C stops. "BRAKE, MAX BRAKING, MAX BRAKING" aural alert. FCTM AS-ROW/ROP

Question 28

WHAT DOES THE FMGS CONSIST OF?

Answer 28

- 2 FMGC'S - 2 MCDU'S - 1 FCU - 2 FAC'S FCOM DSC-22_10-10

Question 29

WHEN DO THE FD BARS AUTOMATICALLY DISAPPEAR?

Answer 29

25* NOSE UP 13* NOSE DOWN 45*+ BANK ANGLE FCOM DSC-22_30-20

Question 30

AT WHAT HEIGHT CAN THE AP NOT BE ENGAGED?

Answer 30

BELOW 100ft RA FCOM DSC-22_30-30

Question 31

WHAT IS THE TCAP SYSTEM?

Answer 31

TCAP - TCAS Alert Prevention When a TA is triggered ALT* will engage and reduce V/S to around 1500 fpm.

Question 32

WHAT IS TOS 2?

Answer 32

Takeoff Surveillance 2 Calculates the distance between the position at which brakes are released to the point the a/c will leave the ground. An ECAM caution or WARNING will sound if it determines the distance inadequate when T/OFF power is set.

Question 33

WHEN DOES ROW/ROPS ARM AND DISARM?

Answer 33

ROW ARMED at 400 ft until start of braking ROPS starts at braking and DISARMS at A/C STOP. ROPS is inhibited at 30 kt or less GND SPD FCOM DSC-34-SURV-50-20

Question 34

HOW LONG DOES THE "WINDSHEAR" WARNING LAST FOR IF IN THOSE CONDITIONS?

Answer 34

The system latches for 15 secs and will show on the PFD for that time. If at the end of the 15 secs, the audio warning will repeat (WINDSHEAR X 3) IF it still detects windshear.

Question 35

WHAT IS THE "BACF" AND WHAT DOES IT DO?

Answer 35

BRAKING ACTION COMPUTATION FUNCTION Only reports computed braking action when friction limits encountered (anti-skid activates), more so in LOW.

Question 36

WHAT DOES IT MEAN WHEN YOU HEAR THE "CAVALRY CHARGE"?

Answer 36

AP has disengaged FCOM DSC-22_30-30