ATA21 - Air conditioning / pressurisation / ventilation Flashcards
1
Q
- Following an ECAM CAB PRESS SYST 1 AMBER FAULT :
MASTER CAUTION is activated and ECAM actions must be taken by the crew
SYSTEM 2 must be selected by the crew
SYSTEM 2 takes over automatically without crew action
A
SYSTEM 2 takes over automatically without crew action
2
Q
- The safety valves are operated :
Electrically
Hydraulically
Pneumatically
A
Pneumatically
3
Q
296. During landing run PACK AIR FLAPS open when speed is less than : 80 kts (after 30 sec delay) 70 kts (after 3 min) 70 kts (after 20 sec delay)
A
70 kts (after 20 sec delay)
4
Q
- Conditioned AIR is distributed to :
COCKPIT, CARGO BAYS, and CABIN
COCKPIT, FORWARD and AFT CABINS
COCKPIT, AVIONICS BAY, CABIN
A
COCKPIT, FORWARD and AFT CABINS
5
Q
- What is the max negative differential pressure for the cabin :
0 PSI
1 PSI below ambient
2 PSI above ambient
A
1 PSI below ambient
6
Q
- TRIM AIR VALVE, each one optimizes the temperature by :
Adding HOT AIR
Adding FRESH AIR
Modulation of PACK FLOW
A
Adding HOT AIR
7
Q
- Engine flow demand, when the heating or cooling demand in one zone cannot be
satisfied :
The minimum IDLE must be increased manually
The minimum IDLE is increased automatically
In any case, flight IDLE is sufficient
A
The minimum IDLE is increased automatically
8
Q
301. Is it possible to use simultaneously PACKS and LP GROUND UNIT during long stops on a hot airport : Yes No Yes, if external temperature is > 50°C
A
No
9
Q
- The DITCHING switch when selected ON, sends a closure signal to :
The outflow valve and the pack flow control valves
The RAM AIR inlet and ventilation inlet and extract valves
Both answers are correct
A
Both answers are correct
10
Q
- The cabin zone temperature sensors are ventilated by the air extracted by the lavatory
and galleys extraction fans :
True
False
A
True
11
Q
304. The RAM AIR P/B should be used : At any time Only when DIFF PRESS is less than 1 PSI When PRESS is greater than 1 PSI DIFF Only after outflow valve is fully opened
A
Only when DIFF PRESS is less than 1 PSI
12
Q
305. When landing elevation is set to AUTO, the landing elevation is sent to the controller from : FMGS FCU ADIRS
A
FMGS
13
Q
- The temperature selectors are located in :
The cockpit
The cabin
Both answers are correct
A
The cockpit
14
Q
- To see the position of the outflow valve it is necessary to call ECAM :
COND PAGE
BLEED PAGE
PRESS PAGE
A
PRESS PAGE
15
Q
- Cabin pre-pressurization starts at :
Engine start
TAKE-OFF power selection
LIFT-OFF
A
TAKE-OFF power selection
16
Q
- ACSC both channels failure :
Pack outlet temperature is controlled between 5°C and 30°C by the ANTI-ICE
VALVE
The pack is lost
A
The pack is lost
17
Q
- The pack flow control valve closes automatically in case of :
PACK overheat, ENGINE FIRE PUSH BUTTON released , ENGINE START,
DITCHING P/B pressed
BLEED VALVE FAILURE, PACK OUTLET PRESSURE increase
both answers are correct
A
PACK overheat, ENGINE FIRE PUSH BUTTON released , ENGINE START,
DITCHING P/B pressed
18
Q
- Temperature control is automatic and is regulated by :
ACSC 1
ACSC 2
Both answers are correct
A
Both answers are correct
19
Q
- In case of total ZONE CONTROLLER failure :
Hot air and TRIM AIR VALVES open and PACK 1 delivers air at fixed temperature
(+24°C)
Hot air and TRIM AIR VALVES close and PACK 2 delivers air at fixed temperature
(+15°C)
Optimized and back-up temp regulation is lost, PACKS deliver air at fixed
temperature (PACK1 at +20°C and PACK 2 at +10°c)
A
Optimized and back-up temp regulation is lost, PACKS deliver air at fixed
temperature (PACK1 at +20°C and PACK 2 at +10°c)