Wood
Which statement about wood decay is correct? - ANSDecay is not acceptable in any form or
amount.
Compression daily res in wood aircraft structures are characterized by buckling of the fibers that
appear as streaks on the surface - ANSat the right angles grain
Glue deterioration in wood aircraft structure is indicated - ANSwhen a joint has separated and
the glue surface shows only the imprint of the wood with no wood fibers clinging to the glue
When patching a plywood skin, abrupt changes in cross-sectional areas which will develop
dangerous stress concentration should be avoided by using - ANScircular or elliptical patches
Laminated wood is sometimes used in the construction of highly stressed aircraft components.
This wood can be identified by its - ANSparallel grain construction
Pin knot clusters are permitted in wood aircraft structure provided - ANSthey produce a small
effect on grain direction
which of the following conditions will determine acceptance of wood with mineral streaks -
ANSCareful inspection fails to reveal any decay.
A faint line running across the grain of a wood spar generally indicates - ANScompression
failure
In cases of eking ated boltholes in a wood spar or cracks in the vicinity of boltholes, - ANSa new
section of spar should be spliced in or the spar replaced entirely
where is information found concerning acceptable species substitutions for wood materials used
in aircraft repair? - ANSAC 43.13-1B
The strength of a well-designed and properly prepared wood splice joint is provided by the -
ANSglue
The I-beam wooden spar is routed to - ANSreduce weight
which of the following is a hazard associated with sanding on fabric surfaces during the finishing
process? - ANSstatic electricity buildup
what is likely to occur if I hydrated wash primer is applied to unpainted aluminum and then about
30-40 minutes later a finish topcoat, when the humidity is low? - ANSa glossy, blush free finish
Which statement about wood decay is correct? - ANSDecay is not acceptable in any form or
amount.
Compression daily res in wood aircraft structures are characterized by buckling of the fibers that
appear as streaks on the surface - ANSat the right angles grain
Glue deterioration in wood aircraft structure is indicated - ANSwhen a joint has separated and
the glue surface shows only the imprint of the wood with no wood fibers clinging to the glue
When patching a plywood skin, abrupt changes in cross-sectional areas which will develop
dangerous stress concentration should be avoided by using - ANScircular or elliptical patches
Laminated wood is sometimes used in the construction of highly stressed aircraft components.
This wood can be identified by its - ANSparallel grain construction
Pin knot clusters are permitted in wood aircraft structure provided - ANSthey produce a small
effect on grain direction
which of the following conditions will determine acceptance of wood with mineral streaks -
ANSCareful inspection fails to reveal any decay.
A faint line running across the grain of a wood spar generally indicates - ANScompression
failure
In cases of eking ated boltholes in a wood spar or cracks in the vicinity of boltholes, - ANSa new
section of spar should be spliced in or the spar replaced entirely
where is information found concerning acceptable species substitutions for wood materials used
in aircraft repair? - ANSAC 43.13-1B
The strength of a well-designed and properly prepared wood splice joint is provided by the -
ANSglue
The I-beam wooden spar is routed to - ANSreduce weight
which of the following is a hazard associated with sanding on fabric surfaces during the finishing
process? - ANSstatic electricity buildup
what is likely to occur if I hydrated wash primer is applied to unpainted aluminum and then about
30-40 minutes later a finish topcoat, when the humidity is low? - ANSa glossy, blush free finish
