(Vjc-A320) Question PDF

 

ATA 21 - AIR CONDITIONING

ATA 21- AIR CONDITIONING 1.  THE PURPOSE OF THE PACK IS:  A. To regulate hot air pressure. B. To adjust the temperature in the three zones. C. To regulate basic temperature. 2.  THE FUNCTION OF EACH PACK CONTROLLER IS:  A. To control the corresponding pack and flow control valve. B. To control the trim air valves. C. To control the zone controller. 3.  THE PURPOSE OF THE ZONE CONTROLLER IS:  A. To control zones temperature. B. To control the flow control valves. C. To control the packs. 4.  HOW IS THE BASIC TEMPERATURE REGULATED BY THE ZONE CONTROLLER IS?  A. By using the lowest zone temperature demand. B. By using the temperature demanded in the three zones. C. By using the highest zone temperature demand. 5.  THE FUNCTION OF THE TRIM AIR VALVE IS:  A. To optimize the zone temperature by adding cold air. B. To optimize the zone temperature by adding hot air. C. To regulate the hot air pressure. 6.  PACK FLOW CONTROL VALVE IS:  A. Hydraulically operated and electrically controlled. B. Pneumatically operated and electrically controlled. C. Electrically operated and electrically controlled. 7.  IN CASE OF PACK COMPRESSOR OVERHEAT, THE PACK FLOW CONTROL VALVE STARTS:  A. To close electrically B. To open pneumatically. C. To close pneumatically. 8.  WHEN ENGINE START:  A. Pack Flow Control Valve is stayed previous position. B. Corresponding pack Flow Control Valve is automatically closed. C. Corresponding pack Flow Control Valve still open. 9.  THE TURBINE DRIVES:  A. The compressor and the cooling air fan. B. The compressor. C. The cooling air fan. 10. BLEED AIR IS DUCTED TO:  A. The primary heat exchanger. B. The compressor. C. The main heat exchanger. 11. THE MAIN PURPOSE OF THE ANTI-ICE VALVE IS:  A. To stop ice formation across the main heat exchanger. B. To stop ice formation across the primary heat exchanger. C. To stop ice formation across the pack condenser. 12. THE PURPOSE OF THE BYPASS VALVE IS:  A. To increase the air flow to the turbine stage. B. To modulate the pack discharge temperature. C. To reduce the air flow to the compressor stage. 13. THE PURPOSE OF THE RAM AIR INLET FLAP IS:  A. To ensure cabin ventilation in case both packs fail. B. To provide air to the pack compressor. C. To modulate the main air flow through the heat exchangers.

14. DURING TAKE-OFF AND LANDING, THE RAM AIR INLET FLAP IS:  A. Fully open to increase air flow into heat exchangers. B. Fully closed to prevent ingestion of foreign objects. C. Modulated to close. 15. WHEN ENGINE FIRE PUSHBUTTON RELEASED OUT:  A. The pack Flow Control Valve is electrically controlled to close. B. The pack Flow Control Valve is pneumatically controlled to close. C. The pack Flow Control Valve is electrically controlled to modulate. 16. WHEN DITCHING PUSHBUTTON SET TO ON:  A. The pack Flow Control Valve is electrically controlled to close. B. The pack Flow Control Valve is pneumatically controlled to close. C. The pack Flow Control Valve remain open. 17. IN CASE OF LACK OF AIR PRESSURE:  A. The pack Flow Control Valve remain open. B. The pack Flow Control Valve is pneumatically controlled to close. C. The pack Flow Control Valve is electrically controlled to close. 18. WHEN BLEED AIR TAKEN FROM THE APU OR SINGLE PACK OPERATION (A320):  A. FCV operate at high flow automatically. B. FCV operate at normal flow automatically. C. FCV operate at low flow automatically. 19. WITHOUT AIR PRESSURE, THE HOT AIR PRESSURE REGULATING VALVE IS:  A. Pneumatically open. B. Springloaded open. C. Springloaded closed. o 20. IN CASE OF DUCT TEMPERATURE ABOVE 88 C, THE HOT AIR PRESSURE REGULATING VALVE IS:  A. Automatically electrically closed. B. Automatically pneumatically closed. C. Remain open. 21. IN CASE OF PACK CONTROLLER FAILURE:  A. The By-pass Valve control pack discharge temperature at a fixed value B.

The Anti-Ice value Valve control pack discharge temperature at a fixed C. The Ram air inlet control pack discharge temperature at a fixed value 22. THE AIR CYCLE MACHINE CONSISTS OF:  A. A compressor and a fan B. A turbine, a compressor. C. A turbine, a compressor and a fan. 23. THE WATER EXTRACTOR TEMPERATURE SENSOR IS USED TO:  A. Modulate the pack outlet temperature. B. Modulate the compressor outlet temperature. C. Modulate the water extractor outlet temperature. 24. THE PACK OUTLET TEMPERATURE SENSOR IS USED TO:  A. Pack outlet temperature indication on ECAM display. B. Modulate the water extractor outlet temperature. C. Modulate the pack outlet temperature. 25. THE PACK OUTLET PNEUMATIC SENSOR IS USED TO:  A. Maintain the pack outlet temperature at a fixed value. 1

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ATA 21 - AIR CONDITIONING

B. Modulate the water extractor outlet temperature. C. Modulate the condenser outlet temperature. 26. THE FLOW SENSOR IS USED TO:  A. Measure flow of bleed air into FCV. B. Measure flow of cool air into mixer unit. C. Measure flow of cool air into cockpit. 27. THE COMPRESSOR OVERHEAT SENSOR IS USED TO:  A. Compressor outlet temperature overheat detection. B. Compressor outlet temperature indication on the ECAM display. C. A and B. 28. FUNCTION OF THE MIXER UNIT:  A. Mixes air from packs and re-circulated air from the cabin. B. Mixes air from packs and bleed air from pneumatic system. C. Mixes air from pneumatic system and re-circulated air from the cabin. 29. THE MIXER UNIT HAS:  A. One temperature sensors B. Two temperature sensors. C. Three temperature sensors. 30.  PURPOSE OF MIXER UNIT TEMPERATURE SENSORS:  A. Indicate the actual temperature of the mixer unit to the pack controllers. B. Indicate the actual temperature of the mixer unit to the EEC. C. Indicate the actual temperature of the mixer unit to the zone controller. 31. THE MIXER UNIT FLAP FUNCTION:  A. Ensures sufficient cabin air supply if pack 1 is selected off. B. Ensures sufficient flight deck air supply if pack 1 is selected off. C. Ensures sufficient flight deck air supply if pack 2 is selected off. 32. THE TRIM AIR PRESSURE REGULATING VALVE IS:  A. Pneumatically operated and electrically controlled by two solenoids. B. Pneumatically operated and electrically controlled by one solenoids. C. Hydraulically operated and electrically controlled by two solenoids. 33. IF A DUCT OVERHEAT IS DETECTED:  A. The mixer unit flap closes. B. The PRV and the TAVs close. C. The PRV and the corresponding TAV close. 34.  AIR VALVE IS:  A. Modulating valve B. On/Off valve C. Check valve. 35. WHEN THE TRIM AIR PRESSURE REGULATING VALVE CLOSES:  A. The TAVs still open. B. Only one TAV close. C. The TAVs close. 36. FUNCTION OF DUCT TEMPERATURE SENSORS:  A. Indication and overheat detection corresponding duct temperature to the packs controller. B. Indication and overheat detection corresponding duct temperature to the zone controller. C. Indication and overheat detection corresponding zone temperature to the zone controller. 37. FUNCTION OF ZONE TEMPERATURE SENSORS:

 A. Detect corresponding zone temperature for zone temperature control and indication on ECAM display. B. Detect corresponding zone temperature for zone temperature control C. Zone temperature indication on ECAM display. 38. THE PACK CONTROLLERS SEND TO THE ZONE CONTROLLER:  A. The flow demand signal. B. BITE information and pack status signals. C. The BITE demand signal. 39. TO CLOSE THE PACK RAM AIR INLET FLAP, THE PACK CONTROLLER NEEDS INFORMATION FROM:  A. The ECB. B. The anti-ice system. C. LGCIU 2, BSCU and EIUs. 40. THE AIRCRAFT IS EQUIPPED WITH:  A. One emergency ram air inlet flap B. Two emergency ram air inlet flap C. Three emergency ram air inlet flap 41. PURPOSE OF EMERGENCY RAM AIR INLET FLAP:  A. Aircraft ventilation or smoke removal when both packs failure. B. Aircraft ventilation or smoke removal when one pack failure. C. Aircraft ventilation or smoke removal when outflow valve failure. 42. WHEN SET TO ON, THE EMERGENCY RAM AIR INLET FLAP OPENS:  A. Always open. B. DITCHING is selected. C. DITCHING is not selected. 43. WHEN THE CABIN TO AMBIENT AIR DIFFERENTIAL PRESSURE IS LESS THAN 1 PSI:  A. The pressure controller fully opens the outflow valve. B. The pressure controller half opens the outflow valve. C. The zone controller half opens the outflow valve. 44. PRESSURIZATION SYSTEM HAS:  A. Two outflow valve and one safety valve. B. One outflow valve and two safety valve. C. One outflow valve and one safety valve. 45. PRESSURIZATION IS PERFORMED BY CONTROLLING:  A. The amount of air discharged overboard through one outflow valve. B. The amount of air discharged overboard through two outflow valve. C. The amount of air discharged overboard through two safety valve. 46. THE PRESSURIZATION SYSTEM HAS TWO CABIN PRESSURE CONTROL (CPC) :  A. Only one controller operates at a time, the other is in active stand-by. B. Both CPC operate at a time. C. Two CPC Manual changed over after each flight 47. IN AUTOMATIC OPERATION, THE OUTFLOW VALVE IS OPERATED BY:  A. Only electrical motor 1. B. Electrical motor 1 or motor 2 depending on the operating controller. C. Only electrical motor 3.

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ATA 21 - AIR CONDITIONING

48. THE MANUAL MOTOR 3 OF OUTFLOW VALVE IS USED:  A. In case of failure of system 1 or 2. B. In case of failure of system 1. C. In case of failure of system 1 and 2. 49. WHEN MANUAL MODE IS USED:  A. Manual part of CPC2 use for backup indication. B. Manual part of CPC1 use for backup indication . C. No backup in this mode. 50. FUNCTION OF SAFETY VALVES:  A. Prevent excessive positive pressure in the fuselage. B.

Prevent excessive negative pressure in the fuselage. C. Prevent excessive positive and negative differential pressure in the fuselage. 51. THE MAXIMUM NORMAL CABIN ALTITUDE FOR MAXIMUM CRUISE LEVEL (39000 FT) IS:  A. 8000 ft. B. 9550 ft. C. 11300 ft. 52. WHEN THE LDG ELEV SELECTOR IS IN AUTO POSITION:  A. The landing elevation comes CPC. B. The landing elevation comes from the FMGC. C. The landing elevation comes from the selector. 53. WHERE ARE DATA COME FROM, THE CPCS USE TO CONTROL OUTFLOW VALE AUTOMATICALLY?  A. FMGC and ADIRS. B. FMGC. C. ADIRS. 54. IF MANUAL MODE HAS BEEN SELECTED AND DITCHING PUSHBUTTON IS SELECTED TO ON:  A. The outflow valve close automatically. B. The outflow valve does not close automatically. C. The outflow valve does not fully close. 55. THE SAFETY VALVE POSITION IS DISPLAYED IN AMBER WHEN:  A.  Nothing. B. Two safety valves are closed.

Either safety valve is not closed. C. 56. INFLIGHT, THE OUTFLOW VALVE POSITION IS DISPLAYED IN AMBER WHEN:  A. Outflow valve fully open. B. Outflow valve not fully open. C. Nothing. 57. EIU SENDS A THRUST LEVER ANGLE ASSOCIATED WITH AN N2 SIGNAL TO BOTH CONTROLLERS TO:  A. Initiate the pre-pressurization and the pressurization sequences. B. Initiate the pre-pressurization automatically. C. Initiate the pre-pressurization automatically. 58. SIGNAL FROM LGCIU TO CPCs ARE USED FOR:  A. Pre-pressurization, pressurization, depressurization sequences and system transfer. B. Pressurization, depressurization sequences and system transfer. C. Pre-pressurization, pressurization, depressurization sequences. 59. MOTOR 3 IS CONTROLLED FROM:  A. CPC1.

B. The AIR COND panel. C. The CABIN PRESS panel. 60. IN MANUAL MODE, WARNINGS AND INDICATIONS COME FROM:  A. CPC1. B. CPC 2. C. The outflow valve. 61. CABIN PRESS FAULT LIGHT COMES ON WHEN:  A. Automatic system 1 fails. B. Both automatic systems fail. C. Manual system fails.

 

62. AVIONIC VENTILATION SYSTEM HAS:  A. One blower fan. B. One extract fan. C. One blower fan and one extract fan. 63. THE LAVATORY AND GALLEYS VENTILATION SYSTEM HAS:  A. One extraction fan. B. One blower fan. C. One blower fan and one extract fan. 64. LAV AND GALLEYS VENTILATION AIR COME FROM:  A. Pack 1. B. Cabin distribution ducts. C. Pack 2. 65. THE PURPOSE OF THE AVIONICS EQUIPMENT VENTILATION COMPUTER IS:  A. To ensure control and monitoring of the avionics ventilation system. B. To control and monitor the cargo ventilation components. C. To control and monitor the packs. 66. FWD CARGO VENTILATION AIR COME FROM:  A. Avionics bay ambient air. B. Air coming directly from the pack outlet. C. Cabin ambient air. 67.  AEVC WILL CHANGE THE SYSTEM CONFIGURATION DEPENDING ON:  A. Aircraft skin temperature. B. Whether the aircraft is on ground or in flight. C. Whether the aircraft is on ground or in flight and on aircraft skin

temperature. 68. IN OPEN CIRCUIT CONFIGURATION:  A. The skin air inlet and outlet valves are fully open. B. The skin air inlet fully open, outlet valves partially open. C. The skin air inlet fully open, outlet valves fully closed. 69. IN CLOSED CIRCUIT CONFIGURATION, THE EXTRACTED AVIONICS EQUIPMENT AIR GOES:  A. Into the skin heat exchanger to be heated. B. Into the skin heat exchanger to be cooled. C. Outboard. 70. THE SKIN AIR OUTLET VALVE HAS:  A. Single flap with a smaller flap built into it. B. Only a single flap.. C. Single flap with two smaller flaps built into it. 71. SKIN EXCHANGER INLET BYPASS VALVE OPEN WHEN:  A. In open circuit configuration. B. In partially open circuit configuration, or in closed circuit configuration with airflow higher than the requested value.

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ATA 21 - AIR CONDITIONING

C. When the ambient avionics bay temperature is above 34°C (93.2°F). 72. IN NORMAL OPERATION:  A. The BLOWER and EXTRACT pushbuttons are set to AUTO. B. The BLOWER set to OVRD and EXTRACT pushbuttons set to AUTO. C. the BLOWER set to AUTO and EXTRACT pushbuttons set to OVRD. 73. IN CASE OF AVIONIC VENTILATION SYSTEM MALFUNCTION:  A. Air from air conditioning system is added to ventilation air. B. Air from avionic bay is added to ventilation air. air. C. Air from outboard is added to ventilation air. 74. PURPOSE OF SKIN TEMPERATURE SENSOR:  A. Configuration mode of Avionic ventilation system. B. Indication on ECAM. C. Controlling zone temperature. 75. THE FWD ISOL VALVE PUSHBUTTON CONTROLS:  A. The extraction fan through the ventilation controller. B. The isolation valves and the extraction fan through the ventilation controller. C. The isolation valves. 76. ON CARGO VENTILATION SYSTEM, WHEN THE ISOLATION VALVES ARE CLOSED:  A. The extraction fan stops. B. The extraction fan still run 5 minutes. C. The extraction fan run continuously . 77. EXTRACTION FAN OF LAVATORY AND GALLEYS VENTILATION SYSTEM:  A. Run when Aircraft in-flight. B. Run when different pressure between inboard and outboard