Day 2 Progress Check

What type of patch can only be used for damage that does not involve the supporting structure under the skin?

Plug patch

What is the primary long term concern when inspecting glued joints in wood structures?

Age and stress at the joints

When inspecting wood structures, what indicates the presence of dry rot?

Discoloration of the wood

Why is it important to use the same mechanical and environmental conditions for glue joint testing as the actual repair?

To ensure accuracy in strength assessment

What is the purpose of using a moisture meter during the inspection of wood structures?

To ensure the wood's moisture content is within the ideal range

What key aspect should be checked for during the inspection of metal fittings attached to wood structures?

Presence of cracks or bending

Which type of adhesive is noted for being the most forgiving in terms of joint finish quality?

Epoxy resins

What is the maximum slope of grain allowed for wood suitable for structural repair in aircraft?

1:15

What is the ideal moisture content range for wood used in aircraft structures to prevent fungus growth?

8-12%

Which type of patch is considered best for repairing damaged plywood in aircraft structures?

Scarf patch

What type of glue is most commonly used for wood and structural repair in aircraft?

Resorcinol glue

Which historical aircraft was known for its wooden construction during WWII?

DeHavilland Mosquito

Which of the following is NOT a common factor in premature glue deterioration?

Excessive ambient noise

What indicates a glue-starved joint during the clamping and pressure application process?

Thin glue line

For a scarf splice in a cap strip repair, what is the required slope for the splice?

10:1