LOG 104 MODULE 5; Questions & Answers
Which of the following actions can be classified as "Maintenance?" Select the two alternatives
that apply. Answer-1.*** Replacing a part that has failed.
2.**** Fixing a part that has been damaged.
Which of the following describes "maintainability?"
Selec...
LOG 104 MODULE 5; Questions & Answers
Which of the following actions can be classified as "Maintenance?" Select the two alternatives
that apply. Answer-1.*** Replacing a part that has failed.
2.**** Fixing a part that has been damaged.
Which of the following describes "maintainability?"
Select the two alternatives that apply. Answer-1.*** Incorporating diagnostics into the
design that permits the monitoring of a part's status.
2.*** The rapid diagnosis and removal of faults.
Which of the following provides the best description of the difference between maintainability
and maintenance? Answer-Maintainability is a design characteristic, while maintenance
is the act of restoring or retaining a system to a specified condition.
Which of the following design elements contribute to a system's maintainability design by
providing a capability to identify and diagnose a failure and facilitating a repair?
Select the two alternatives that apply. Answer-1.*** Diagnostics.
2.*** Human Factors.
A system's built-in testing (BIT) indicates that a part is not functioning correctly. When it is
shipped to the depot for repairs, tests indicate that the part is working within normal
parameters.
This type of diagnostic indicates which of the following diagnostic problems? Answer-Re-
test OK (RTOK).
A pilot notices that the engine fire warning lamp in her UH-60 Blackhawk helicopter is lit an
hour into a flight. Knowing that the built-in testing (BIT) has a tendency to develop intermittent
, LOG 104 MODULE 5; Questions & Answers
connections with the sensors, the pilot bangs on the indicator, and the light goes out. Believing
the aircraft is fine, the pilot completes the mission.
The pilot has apparently experienced which of the following diagnostic problems?
Answer-BIT false alarm.
Which of the following is the worst case scenario when there is a diagnostic system
malfunction? Answer-Diagnostics report no problem, and there really is a problem.
What will the D-level diagnostics tell you about the circuit board just discussed? Answer-
The board is out of tolerance.
What problems would you expect to encounter in systems that do not incorporate vertical
testability concepts? Answer-Increased indications of out of tolerance conditions.
Which of the following is the best definition of vertical testability? Answer-A
maintainability feature that provides the capability to obtain usable and consistent test results
across maintenance levels.
Which of the following are benefits of establishing a vertical testability scheme?
Select the two alternatives that apply. Answer-1.*** Increased confidence in a system's
diagnostic capabilities.
2.*** Decreased number of Can Not Duplicates (CNDs), Bench Check Serviceables (BCSs), and
Re-test OKs (RTOKs)
Which of the following descriptions define a maintainability-related metric?
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