What is a technician important responsability
o :# Identifying and applying specifications within acceptable toleranceibility
What gives the aircraft the capability to withstand aerodynamic loads ?
o :# the strength of thousands of fasteners which hold it together
What does the Strength of airc...
AFAB 115 MIDTERM Questions and
Answers
What is a technician important responsability
o :# Identifying and applying specifications within acceptable toleranceibility
What gives the aircraft the capability to withstand aerodynamic loads ?
o :# the strength of thousands of fasteners which hold it together
What does the Strength of aircraft fasteners depends on?
o :# the technician's who drill and prepare the holes in which those fasteners are
installed.
What is fundamental for good joint performance and durability
o :# Clean, round holes within tolerance and with minimal burrs
For most DOD manufacturers you must be
o :# certified by the manufacturer/employer to perform hole drilling operations
Tolerance is
o :# the plus or minus allowances in hole dimensions
, 2024/2025 2|Page
Accurate holes can only occur if
o :# the drill is at a 90 degree angle
to the surface being drilled.
A drill or egg cup should be used to
o :# ensure a perpendicular drill.
To minimize fatigue, and enable fasteners to sit correctly,
it is important that
o :# proper deburring,chamfering,and edge breaks
are performed.
To prevent delamination and breakout when drilling
composites you must
o :# always support the material from the backside
To minimize delamination when drilling in graphite/carbon
or composites you must
o :# always keep the drill rotating as it touches
the surface and during withdrawal.
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