ALM 388 UNIT III QUESTIONS AND ANSWERS
What are self-contained diagnostic systems found on modern aircraft often called? - CORRECT
ANSWER✅✅BITE
The B-757 contains several systems that employ BITE. Which of the following is true of this type of BITE?
- CORRECT ANSWER✅✅The BITE data is accessed through a given LRU using an LED display.
The Boeing 757 and 767 incorporate a Maintenance Control Display Unit (MCDU) to Monitor and Test
various systems. Which of the following statements is/are true concerning the MCDU? - CORRECT
ANSWER✅✅All of the above
The BITS mode fault diagnostics program is found on which of the following systems? - CORRECT
ANSWER✅✅Corporate aircraft that employs Collins Electronic Flight Instrument Systems (EFIS)
Where is the fault data accessed for the B-747-400 Central Maintenance Computer System? - CORRECT
ANSWER✅✅The fault data is accessed through one of four printers
What system is used on the B-747-400 for fault monitoring and isolation? - CORRECT
ANSWER✅✅Central Maintenance Computer System
How many Central Maintenance Computers (CMCs) are used in the B-747-400 CMC System? - CORRECT
ANSWER✅✅Two
Which of the following statements is true concerning the Line Select Keys (LSK) found on the B-747-400?
- CORRECT ANSWER✅✅The LSKs are used to select items for display or activate functions available on
the CDU
What are the two basic formats presented under the present faults function of the B-747-400 CMCs? -
CORRECT ANSWER✅✅Present leg faults and CMC messages
, On the B-747-400 Central Maintenance Computer System the Term Present Leg is defined as which of
the following? - CORRECT ANSWER✅✅The Present Leg is defined as the elapsed time between Forst
engine start and last engine shut down.
A flight deck effect can be defined as which of the following? - CORRECT ANSWER✅✅Any EICAS (or
ECAM) Message or Parameter exceedance, any primary flight display (PFD) flag, or any navigational
display (ND) flag
What manual is used in conjunction with CMCS message data for troubleshooting the B-747-400? -
CORRECT ANSWER✅✅Fault Isolation Manual
What function of the software program is used by the Boeing 747-400 CMCs to help eliminate nuisance
messages? - CORRECT ANSWER✅✅Flight phase screening
The B-747-400 Central Maintenance Computers Van record how many different flight phases? -
CORRECT ANSWER✅✅14
What parameter is recorded by the CMC to indicate the airplane's configuration at the time a system
fails? - CORRECT ANSWER✅✅The flight phase when the fault occurred
Generally speaking, what is a nuisance message displayed by an aircraft's central maintenance system? -
CORRECT ANSWER✅✅Any fault data or flight deck effect that is not caused by an actual fault.
How many flight legs can be stored in the B-747-400 CMCs fault history? - CORRECT ANSWER✅✅99
On the B-747-400, the EICAS Maintenance Pages present which of the following types of data? -
CORRECT ANSWER✅✅Real time data, auto event data, manual event data
The confidence tests function of the B-747-400 CMCS is often used for which of the following? -
CORRECT ANSWER✅✅Preflight testing of three vital aircraft systems.
What are self-contained diagnostic systems found on modern aircraft often called? - CORRECT
ANSWER✅✅BITE
The B-757 contains several systems that employ BITE. Which of the following is true of this type of BITE?
- CORRECT ANSWER✅✅The BITE data is accessed through a given LRU using an LED display.
The Boeing 757 and 767 incorporate a Maintenance Control Display Unit (MCDU) to Monitor and Test
various systems. Which of the following statements is/are true concerning the MCDU? - CORRECT
ANSWER✅✅All of the above
The BITS mode fault diagnostics program is found on which of the following systems? - CORRECT
ANSWER✅✅Corporate aircraft that employs Collins Electronic Flight Instrument Systems (EFIS)
Where is the fault data accessed for the B-747-400 Central Maintenance Computer System? - CORRECT
ANSWER✅✅The fault data is accessed through one of four printers
What system is used on the B-747-400 for fault monitoring and isolation? - CORRECT
ANSWER✅✅Central Maintenance Computer System
How many Central Maintenance Computers (CMCs) are used in the B-747-400 CMC System? - CORRECT
ANSWER✅✅Two
Which of the following statements is true concerning the Line Select Keys (LSK) found on the B-747-400?
- CORRECT ANSWER✅✅The LSKs are used to select items for display or activate functions available on
the CDU
What are the two basic formats presented under the present faults function of the B-747-400 CMCs? -
CORRECT ANSWER✅✅Present leg faults and CMC messages
, On the B-747-400 Central Maintenance Computer System the Term Present Leg is defined as which of
the following? - CORRECT ANSWER✅✅The Present Leg is defined as the elapsed time between Forst
engine start and last engine shut down.
A flight deck effect can be defined as which of the following? - CORRECT ANSWER✅✅Any EICAS (or
ECAM) Message or Parameter exceedance, any primary flight display (PFD) flag, or any navigational
display (ND) flag
What manual is used in conjunction with CMCS message data for troubleshooting the B-747-400? -
CORRECT ANSWER✅✅Fault Isolation Manual
What function of the software program is used by the Boeing 747-400 CMCs to help eliminate nuisance
messages? - CORRECT ANSWER✅✅Flight phase screening
The B-747-400 Central Maintenance Computers Van record how many different flight phases? -
CORRECT ANSWER✅✅14
What parameter is recorded by the CMC to indicate the airplane's configuration at the time a system
fails? - CORRECT ANSWER✅✅The flight phase when the fault occurred
Generally speaking, what is a nuisance message displayed by an aircraft's central maintenance system? -
CORRECT ANSWER✅✅Any fault data or flight deck effect that is not caused by an actual fault.
How many flight legs can be stored in the B-747-400 CMCs fault history? - CORRECT ANSWER✅✅99
On the B-747-400, the EICAS Maintenance Pages present which of the following types of data? -
CORRECT ANSWER✅✅Real time data, auto event data, manual event data
The confidence tests function of the B-747-400 CMCS is often used for which of the following? -
CORRECT ANSWER✅✅Preflight testing of three vital aircraft systems.
