ALM 388 - UNIT III QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTION
What are self-contained diagnostic systems found on modern aircraft often
called? Answer - BITE
The B-757 contains several systems that employ BITE. Which of the following is
true of this type of BITE? 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? Answer - All of the above
The BITS mode fault diagnostics program is found on which of the following
systems? 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? 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?
Answer - Central Maintenance Computer System
, How many Central Maintenance Computers (CMCs) are used in the B-747-400
CMC System? Answer - Two
Which of the following statements is true concerning the Line Select Keys (LSK)
found on the B-747-400? 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? 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? 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? 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? Answer - Fault Isolation Manual
What function of the software program is used by the Boeing 747-400 CMCs to
help eliminate nuisance messages? Answer - Flight phase screening
The B-747-400 Central Maintenance Computers Van record how many different
flight phases? Answer - 14
What parameter is recorded by the CMC to indicate the airplane's
configuration at the time a system fails? Answer - The flight phase when the
fault occurred
COMPLETE SOLUTION
What are self-contained diagnostic systems found on modern aircraft often
called? Answer - BITE
The B-757 contains several systems that employ BITE. Which of the following is
true of this type of BITE? 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? Answer - All of the above
The BITS mode fault diagnostics program is found on which of the following
systems? 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? 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?
Answer - Central Maintenance Computer System
, How many Central Maintenance Computers (CMCs) are used in the B-747-400
CMC System? Answer - Two
Which of the following statements is true concerning the Line Select Keys (LSK)
found on the B-747-400? 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? 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? 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? 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? Answer - Fault Isolation Manual
What function of the software program is used by the Boeing 747-400 CMCs to
help eliminate nuisance messages? Answer - Flight phase screening
The B-747-400 Central Maintenance Computers Van record how many different
flight phases? Answer - 14
What parameter is recorded by the CMC to indicate the airplane's
configuration at the time a system fails? Answer - The flight phase when the
fault occurred
