AIR CONDITIONING & PRESSURIZATION Flashcards
TKE Exam
1
Q
- When HOT AIR “FAULT” Light comes ON on the air conditioning panel due to overheat:
a. the Hot Air Press Regulating Valve closes and the Trim Air Valves close;
b. the Hot Air Press Regulating Valve opens and the Trim Air Valves close;
c. the Hot Air Press Regulating Valve closes and the Trim Air Valves open.
A
a. the Hot Air Press Regulating Valve closes and the Trim Air Valves close;
2
Q
- During normal flight and with Skin Temp +35oC, the Avionics Ventilation System controls the temperature of the cooling air by:
a. adding air from the cockpit;
b. passing air through a skin heat exchanger;
c. adding conditioned air to the flow;
d. extracting air from overboard.
A
b. passing air through a skin heat exchanger;
3
Q
- The Ram Air Switch should be used:
a. at anytime;
b. only when the Differential Pressure is less than 1 PSI;
c. when the Differential Pressure is greater than 1 PSI;
d. only when the outflow valve is fully opened.
A
b. only when the Differential Pressure is less than 1 PSI;
4
Q
- What happens in case of failure of the primary channel of the Pack Controllers?
a. The secondary computer operates in back up mode and regulation is not
optimized;
b. The secondary computer takes over;
c. Pack is lost.
A
a. The secondary computer operates in back up mode and regulation is not
optimized;
5
Q
- What happens in case of failure of the secondary channel of the Pack Controllers?
a. No effect on pack regulation, back up mode is lost;
b. Pack is lost;
c. No effect.
A
a. No effect on pack regulation, back up mode is lost;
6
Q
- What happens in case of failure of the Primary and Secondary Channels of the Pack Controllers?
a. Pack Outlet Temperature is controlled at 15oC by the Anti-Ice Valve;
b. The Pack is closed.
A
a. Pack Outlet Temperature is controlled at 15oC by the Anti-Ice Valve;
7
Q
- What happens if the Hot-Air Pressure-Regulating Valve fails open?
a. Optimised regulation is lost;
b. The temperature stays at the value selected when the failure occurred;
c. No effect.
A
c. No effect.
8
Q
- Bleed air supplied from the APU (APU Bleed Valve open), the pack flow is automatically selected:
a. High
b. Normal
c. Low
A
a. High
9
Q
- Each Trim Air Valve optimizes the temperature by:
a. adding hot air;
b. adding fresh air;
c. modulation of pack flow.
A
a. adding hot air;
10
Q
- The Hot-Air Pressure-Regulating Valve:
a. regulates the pressure of hot air tapped upstream of the packs;
b. is spring-loaded open in the absence of air;
c. opens automatically in case of duct overheat.
A
a. regulates the pressure of hot air tapped upstream of the packs;
11
Q
- The Pack Flow Control Valve is:
a. pneumatically operated and electrically controlled;
b. electrically operated and pneumatically controlled;
c. opens automatically during engine starting.
A
a. pneumatically operated and electrically controlled;
12
Q
- The Temperature Selectors are located in:
a. the cockpit;
b. the cabin;
c. both.
A
a. the cockpit;
13
Q
- Pack flow may be selected from:
a. the cockpit;
b. the cabin;
c. both.
A
a. the cockpit;
14
Q
- For engine pressure demand, when the heating or cooling demand in one zone cannot be satisfied:
a. the minimum idle must be increased manually;
b. the minimum idle must be increased automatically;
c. in any case, flight idle is sufficient.
A
b. the minimum idle must be increased automatically;
15
Q
- What is the maximum normal cabin altitude?
a. 8,000 FT
b. 9,550 + 350 FT;
c. 14,000 FT.
A
a. 8,000 FT
16
Q
- What is the maximum negative differential pressure for the cabin?
a. 0 PSI
b. 0.1 PSI
c. 0.-2 PSI
A
b. 0.1 PSI
17
Q
- Is it possible to simultaneously use Packs and LP Ground Unit during long stops in hot airfield?
a. Yes
b. No
c. Yes, if external temperature is >50oC
A
b. No
18
Q
- The Trim Air Valves are modulated by:
a. the Zone Controller
b. Pack Controllers
c. Hot Air Pressure Regulating Valve.
A
a. the Zone Controller
19
Q
- The Mixing Unit is connected to:
a. Packs, Cabin Air, Emergency Ram Air Inlet and LP Ground Connector;
b. Packs, Emergency Ram Air Inlet and LP Ground Connector;
c. Packs and Cabin Air.
A
a. Packs, Cabin Air, Emergency Ram Air Inlet and LP Ground Connector;
20
Q
- Once set to “ON”, the Air Conditioning Packs operate:
a. automatically and independently of each other;
b. manually and independently of each other
c. automatically, Pack 1 as a master, Pack 2 as a slave.
A
a. automatically and independently of each other;
21
Q
- When the Ram Air push button is set to “ON”, the Emer Ram Air Inlet Valve will open:
a. in any case;
b. provided ditching is not selected;
c. P < 1PSI and ditching is not selected.
A
b. provided ditching is not selected;
22
Q
- In case of Zone Controller Primary Channel failure, which temperature is delivered by the Packs?
a. Pack 1 controls the cockpit temperature at 24oC (75oF), Pack 2 controls the FWD and AFT Cabins temperature at 24oC (75oF);
b. Pack 1 controls a fixed temperature at 20oC (68oF), Pack 2 controls a fixed temperature at 10oC (50oF);
c. the Outlet Temperature for Packs 1 and 2 is fixed at 15oC (59oF).
A
a. Pack 1 controls the cockpit temperature at 24oC (75oF), Pack 2 controls the FWD and AFT Cabins temperature at 24oC (75oF);
23
Q
- Conditioned Air is distributed to:
a. Cockpit, Cargo Bays and Cabin;
b. Cockpit, Forward Cabin and Aft Cabin;
c. Cockpit, Avionics Bay, Cabin.
A
b. Cockpit, Forward Cabin and Aft Cabin;
24
Q
- The Cabin Zone Temperature Sensors are ventilated by the air extracted by the Lavatory and Galley fans.
a. True
b. False
A
a. True
25
Q
- Temperature Control is automatic and is regulated by:
a. Zone Controller
b. Pack 1 and 2 Controllers
c. both A and B above.
A
c. both A and B above.
26
Q
- If a Pack Controller fails, the Pack Outlet Air Temperature is regulated to:
a. 10oC (50oF)
b. 18oC (64oF)
c. 15oC (59oF)
A
c. 15oC (59oF)
27
Q
- In case of Pack Controller failure, the Pack Outlet Air Temperature is controlled by:
a. Pack By-Pass Valve
b. Pack Anti-Ice Valve
c. Pack Flow Control Valve
A
b. Pack Anti-Ice Valve
28
Q
- When the Ram Air push button is set to “ON”, the Outflow Valve:
a. closes;
b. opens each time;
c. opens when Differential Pressure is greater than 1 PSI.
A
c. opens when Differential Pressure is greater than 1 PSI.
29
Q
- The Pack Flow Control Valve closes automatically in case of:
a. Pack overheat, Engine Fire push button released, Engine Start, Ditching push button pressed;
b. bleed valve failure, pack outlet pressure increase;
c. Both A and B.
A
a. Pack overheat, Engine Fire push button released, Engine Start, Ditching push button pressed;
30
Q
- In case of Trim Air System Fault, the Secondary Channel of the Zone Controller regulates the Zone Temperature at:
a. 14oC (57oF)
b. 24oC (75oF)
c. 15oC (59oF)
A
b. 24oC (75oF)
31
Q
- In case of Total Zone Controller failure:
a. Hot Air and Trim Valves open and Packs deliver air at fixed temperature – 15oC (59oF) Pack 1, 10oC (50oF) Pack 2;
b. Hot Air and Trim Valves close and Packs deliver air at fixed temperature – 15oC (59oF) Pack 1, 10oC (50oF) Pack 2;
c. Hot Air and Trim Valves close and Packs deliver air at fixed temperature – 20oC (68oF) Pack 1, 10oC (50oF) Pack 2.
A
c. Hot Air and Trim Valves close and Packs deliver air at fixed temperature – 20oC (68oF) Pack 1, 10oC (50oF) Pack 2.
32
Q
- During landing run, the Pack Air Flaps open when speed is less than:
a. 77 kts (after 30 seconds delay);
b. 70 kts (after 3 minutes);
c. 70 kts (after 20 seconds delay).
A
c. 70 kts (after 20 seconds delay).
33
Q
- When the APU is supplying the Packs, the Pack Controller sends a demand signal to increase air flow when a zone temperature cannot be satisfied:
a. to the Pack Ram Air Inlet Flap;
b. to the APU ECB;
c. Pack Flow Control Valve.
A
b. to the APU ECB;
34
Q
- In case of Zone Controller Primary and Secondary Channels failure, which temperature is delivered by each Pack?
a. 25oC (59oF) Both;
b. 20oC (68oF) Pack 1, 10oC (50oF) Pack 2
c. 24oC (75oF) Pack 1 - 15oC (59oF) Pack 2
d. 15oC (59oF) Both
A
b. 20oC (68oF) Pack 1, 10oC (50oF) Pack 2
35
Q
- When the Ditching Switch is set to “ON”, a closure signal is sent to:
a. Outflow Valve;
b. Ram Air Inlet, and Ventilation Inlet and Extract Valves;
c. The Pack Flow Control Valves;
d. All of the above.
A
d. All of the above.
36
Q
- In normal operation, pressurization is:
a. fully automatic;
b. manually controlled;
c. both A and B.
A
a. fully automatic;
37
Q
- In flight, with Pressure Controller 1 in use, if it fails:
a. You have to use the manual control;
b. Automatic transfer to Controller 2;
c. You have to manually select Controller 2;
d. You have to set the Landing Elevation.
A
b. Automatic transfer to Controller 2;
38
Q
- The Outflow Valve is powered by:
a. One of two electric motors;
b. One of three electric motors;
c. Three mechanically linked electric motors.
A
b. One of three electric motors;
39
Q
- During ground function operation, the Outflow Valve is:
a. fully open;
b. fully closed;
c. positioned according to FMGS demands.
A
a. fully open;
40
Q
- To see the position of the Outflow Valve, it is necessary to call ECAM:
a. COND Page
b. BLEED Page
c. PRESS Page
A
c. PRESS Page
41
Q
- Two identical independent, automatic digital pressurization controllers are used for system control:
a. One controller active, one in standby;
b. Both controllers monitored by FMGC;
c. Controller No1 for climb phase and controller No2 in cruise and descent.
A
a. One controller active, one in standby;
42
Q
- Which controller generates excess cabin altitude and pressure outputs for ECAM indication in Manual Mode?
a. Both
b. No1
c. No2
A
b. No1
43
Q
- When the Ram Air push button set to “ON”, the Outflow Valve will partially open when:
a. > 1.5 PSI
b. < 3 PSI
c. < 1 PSI
A
c. < 1 PSI
44
Q
- The purpose of the Safety Valves is to avoid:
a. Excessive positive differential pressure;
b. Excessive negative differential pressure;
c. Both A and B above.
A
c. Both A and B above.
45
Q
- The Safety Valves are operated:
a. Electrically
b. Hydraulically
c. Pneumatically
A
c. Pneumatically
46
Q
- When Landing Elevation is set to Auto, the Landing Elevation is sent to the controller from:
a. FMGS
b. FCU
c. ADIRS
A
a. FMGS
47
Q
- When MODE SEL is set to Manual, the Outflow Valve is controlled by signals
sent via Controller 1 or 2.
a. TRUE
b. FALSE
A
b. FALSE
48
Q
- On ECAM CAB Press Page, the Outflow Valve indicator changes to AMBER if:
a. Fully closed;
b. Fully open in flight;
c. Fully open on ground.
A
b. Fully open in flight;
49
Q
- On ECAM CAB Press Page, the Safety Valve indication changes to AMBER if:
a. Both Safety Valves are fully open;
b. One Safety Valve is open;
c. Both Safety Valves are fully closed.
A
b. One Safety Valve is open;
50
Q
- On ECAM CAB Press Page, the Cabin Altitude indication changes to RED when Cabin Altitude is:
a. > 14,000 FT
b. > 8,500 FT
c. > 9,550 FT
A
c. > 9,550 FT
51
Q
- Following a System 1 fault:
a. Master Caution is activated and ECAM actions must be taken by the crew;
b. System 2 must be selected by the crew;
c. System 2 takes over automatically without crew action.
A
c. System 2 takes over automatically without crew action.
52
Q
- Cabin Pre-Pressurization starts at:
a. Engine Start
b. Take-Off power selection
c. Lift-Off
A
b. Take-Off power selection
53
Q
- The Pressure Safety Valves open at:
a. 8.06 PSI
b. 8.6 PSI
c. 9.0 PSI
d. 7.6 PSI
A
b. 8.6 PSI
