AIR CONDITIONING & PRESSURIZATION Flashcards
TKE Exam (53 cards)
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
25. Temperature Control is automatic and is regulated by:
a. Zone Controller
b. Pack 1 and 2 Controllers
c. both A and B above.
c. both A and B above.
26
26. If a Pack Controller fails, the Pack Outlet Air Temperature is regulated to:
a. 10oC (50oF)
b. 18oC (64oF)
c. 15oC (59oF)
c. 15oC (59oF)
27
27. 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
b. Pack Anti-Ice Valve
28
28. 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.
c. opens when Differential Pressure is greater than 1 PSI.
29
29. 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. Pack overheat, Engine Fire push button released, Engine Start, Ditching push button pressed;
30
30. 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)
b. 24oC (75oF)
31
31. 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.
c. Hot Air and Trim Valves close and Packs deliver air at fixed temperature – 20oC (68oF) Pack 1, 10oC (50oF) Pack 2.
32
32. 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).
c. 70 kts (after 20 seconds delay).
33
33. 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.
b. to the APU ECB;
34
34. 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
b. 20oC (68oF) Pack 1, 10oC (50oF) Pack 2
35
35. 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.
d. All of the above.
36
36. In normal operation, pressurization is:
a. fully automatic;
b. manually controlled;
c. both A and B.
a. fully automatic;
37
37. 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.
b. Automatic transfer to Controller 2;
38
38. The Outflow Valve is powered by:
a. One of two electric motors;
b. One of three electric motors;
c. Three mechanically linked electric motors.
b. One of three electric motors;
39
39. During ground function operation, the Outflow Valve is:
a. fully open;
b. fully closed;
c. positioned according to FMGS demands.
a. fully open;
40
40. To see the position of the Outflow Valve, it is necessary to call ECAM:
a. COND Page
b. BLEED Page
c. PRESS Page
c. PRESS Page
41
41. 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. One controller active, one in standby;
42
42. Which controller generates excess cabin altitude and pressure outputs for ECAM indication in Manual Mode?
a. Both
b. No1
c. No2
b. No1
43
43. 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
c. < 1 PSI
44
44. 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.
c. Both A and B above.
45
45. The Safety Valves are operated:
a. Electrically
b. Hydraulically
c. Pneumatically
c. Pneumatically
46
46. When Landing Elevation is set to Auto, the Landing Elevation is sent to the controller from:
a. FMGS
b. FCU
c. ADIRS
a. FMGS
47
47. When MODE SEL is set to Manual, the Outflow Valve is controlled by signals
sent via Controller 1 or 2.
a. TRUE
b. FALSE
b. FALSE
48
48. 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.
b. Fully open in flight;
49
49. 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.
b. One Safety Valve is open;
50
50. 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
c. > 9,550 FT
51
51. 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.
c. System 2 takes over automatically without crew action.
52
52. Cabin Pre-Pressurization starts at:
a. Engine Start
b. Take-Off power selection
c. Lift-Off
b. Take-Off power selection
53
53. The Pressure Safety Valves open at:
a. 8.06 PSI
b. 8.6 PSI
c. 9.0 PSI
d. 7.6 PSI
b. 8.6 PSI
