Chapter 6: Tasks Flashcards
three-step process of visual inspection
- look: search for defect
- see: perceive or detect defect
- recognise: understand the defect
repetitive workplace stimuli ___ the awareness of dangers associated with that stimuli
reduces
What is one advantage of
including users in your design?
fosters user’s involvement and acceptance
In the decompression incident,
on 30 May 2003, the investigators found that the wire loom had been damaged
by ___ due to poor ___.
abrasion, routing
In the Concorde accident, on 13
June 2003, the investigators concluded that the mechanics had ____ the wiring
when they carried out the ___ repairs in 2001.
chafed, structural
Why do ergonomists carry out task analysis?
to identify and solve interface issues
Narrowing of attention occurs in states of ____ arousal
high
A Category A aircraft maintenance licence permits the holder to issue certificates of release to service following a ___ ___ line maintenance and simple ____ ____, as specified in SAR-145, within the limits of tasks specifically endorsed
on the authorisation. The certification privileges are restricted to work that the
authorisation holder has ____ ____.
minor scheduled, defect rectification, personally performed
In dye penetrant inspection process, the object is first cleaned and then soaked into
a ____ dye for about 30 minutes. It is then rinsed with water and dipped into an ____ for about a minute. It is then rinsed off with water again and briefly dipped into a ____. The object is then dried and inspected for cracks under UV
light.
fluorescent, emulsifier, developer
As the system becomes more defined, usability assessment tools become?
more complex
A ____ _ aircraft maintenance licence permits the holder to issue certificates of
release to service following ___ _____ on aircraft. The privileges apply to
the aircraft in its entirety in a SAR-145 organisation.
category C, base maintenance
Purpose of task analysis is to gain an ____ of what people in jobs carry out
understanding
Usability is an indicator of how well a system design supports the operators’ and
maintainers’ needs and it is best measured by?
task performance time and accuracy
A secure quarantine store or facility should be provided to ____ those aircraft
components, tools or material where the status of _____ has not been or
cannot be determined.
isolate, serviceability
human performance ____ to an ____ point and ____ as arousal is further increased
increases, optimal, diminishes
