Aeroplane Systems and Maintenance
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Questions and Answers

What is the primary function of the Central Maintenance Computer (CMC) in the Central Maintenance System?

  • To control the interrelated systems
  • To acquire and process data from the BITE memories (correct)
  • To initiate self-tests in normal mode
  • To display output messages on the MCDUs

    • What mode is available only on the ground in the Central Maintenance System?

  • Self-Test Mode
  • Normal Mode
  • Troubleshooting Mode
  • Menu Mode (correct)

    • What is the purpose of the Multipurpose Control and Display Units (MCDUs)?

  • To initiate self-tests in normal mode
  • To record fault messages generated by the Flight Warning Computers
  • To memorise fault data in real-time
  • To control the interrelated systems and display output messages (correct)

    • What type of data is memorised by the system computers and CMCs in Normal Mode?

    <p>Fault data or operational BITE (A)</p> Signup and view all the answers

    What is the purpose of the Central Maintenance System (CMS)?

    <p>To provide a centralised location for aircraft fault information (B)</p> Signup and view all the answers

    In which mode does the CMS record fault messages generated by the Flight Warning Computers (FWC)?

    <p>Normal Mode (A)</p> Signup and view all the answers

    What is the primary function of the Central Maintenance Computer (CMC)?

    <p>To correlate fault messages with aircraft parameters (B)</p> Signup and view all the answers

    What type of warnings are transmitted to the Central Maintenance Computer (CMC)?

    <p>Only primary and independent warnings (B)</p> Signup and view all the answers

    What is stored in the Central Maintenance Computer (CMC) memory?

    <p>Maintenance data for retrieval (D)</p> Signup and view all the answers

    What report is generated by the Central Processing Unit (CPU) of the CMC?

    <p>Post-flight Report (B)</p> Signup and view all the answers

    What information is included in the data stored in the CMC?

    <p>Leg heading, date, flight number, city pair from, start time and A/C identification (D)</p> Signup and view all the answers

    What is the purpose of the Previous Flight Report (PFR) generated by the CMC?

    <p>To store all ECAM and failure messages recorded during the previous 63 flight legs (A)</p> Signup and view all the answers

    What type of buses ensure interconnection between the data loader and each computer in an aircraft?

    <p>ARINC buses (D)</p> Signup and view all the answers

    What is the name of the portable data loader that supplies the airplane with ARINC data buses for loading?

    <p>PDL (C)</p> Signup and view all the answers

    What is the primary function of the LoadStar software in the PMAT?

    <p>To configure loadable software on each aircraft type and tail number (D)</p> Signup and view all the answers

    What is the name of the on-board data loader on later-generation Boeing aircraft?

    <p>MAT (C)</p> Signup and view all the answers

    What is the primary function of the Windows NT operating system in the PMAT?

    <p>To support miscellaneous applications (C)</p> Signup and view all the answers

    What is the name of the aircraft operating system that supports the on-board maintenance system in the PMAT?

    <p>Aircraft OS (A)</p> Signup and view all the answers

    What is a key difference between Class 1 and Class 2 EFBs compared to Class 3 EFBs?

    <p>They can accommodate moving-map software (C)</p> Signup and view all the answers

    What is the purpose of the Display Unit (DU) in the EFB system?

    <p>To operate as a computer monitor and input device (C)</p> Signup and view all the answers

    How do the captain’s EFB system and the first officer’s EFB system differ in a Class 3 system?

    <p>They are independent from each other (A)</p> Signup and view all the answers

    What is an optional feature of the EFB system?

    <p>All of the above (D)</p> Signup and view all the answers

    What is a way the flight crew can interact with the EFB via the DU?

    <p>All of the above (D)</p> Signup and view all the answers

    What is the primary tool used to select and update system software in the Boeing 777 aircraft?

    <p>Cursor Control Device (CCD) of the Maintenance Access Terminal (MAT) (A)</p> Signup and view all the answers

    What is a key benefit of the EFB system?

    <p>It enhances the quality of information available to the crew (C)</p> Signup and view all the answers

    What is the consequence of a software mismatch or incorrect loading procedures in aircraft operations?

    <p>A disastrous sequence of events (C)</p> Signup and view all the answers

    When can software uploads be performed in aircraft operations?

    <p>Only on the ground (B)</p> Signup and view all the answers

    What initializes the downloading of data in the aircraft system?

    <p>MDDU or MCDU (A)</p> Signup and view all the answers

    What happens after the computer acknowledges the request from the MCDU for data downloading?

    <p>The data is sorted into files (B)</p> Signup and view all the answers

    Why is it essential to follow maintenance manuals and perform software and system functional and confidence checks?

    <p>To avoid software mismatches or glitches (D)</p> Signup and view all the answers

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