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FREE AVIATION AND STUDY GAMES ABOUT PETERS2210
EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -61 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: Aluminum pigment in dope is used primarily to
Answer:
- provide a silver color.
- aid in sealing out moisture from the fabric.
- reflect ultraviolet from the fabric.
Question 2: Compression failures in wood aircraft structures are characterized by buckling of the fibers that appear as streaks on the surface
Answer:
- At right angles to the growth rings
- Parallel to the grain
- At right angles to the grain
Question 3: Finishing tape (surface tape) is used for what purpose?
Answer:
- To help prevent 'ripple formation' in covering fabric.
- To provide additional wear resistance over the edges of fabric forming structures.
- To provide additional anti-tear resistance under reinforcement tape.
Question 4: Which fiber to resin (percent) ratio for advanced composite wet lay-ups is generally considered the best for strength?
Answer:
a. 40:60
b. 50:50
c. 60:40
Question 5: Proper prepreg composite lay-up curing is generally accomplished by
Answer:
- adding a catalyst or curing agent to the resin.
- applying external heat and pressure.
- room temperature exposure and applying pressure.
Question 6: Which of the following conditions will determine acceptance of wood with mineral streaks?
Answer:
- Careful inspection fails to reveal any decay
- They produce only a small effect on grain direction
- Local irregularities do not exceed limitations specified for spiral diagonal grain
Question 7: Superficial scars, scratches, surface abrasion, or rain erosion on fiberglass laminates can generally be repaired by applying
Answer:
- a piece of resin-impregnated glass fabric facing.
- one or more coats of suitable resin (room-temperature catalyzed) to the surface.
- a sheet of polyethylene over the abraded surface and one or more coats of resin cured with infrared
heat lamps.Question 8: Laminated wood spars may be substituted for solid rectangular wood spars
Answer:
- Only in certain instances where the primary load is shared by one or more other original structural
member
- If the same quality wood is used in both
- Only upon specific approval by the manufacturer or the FAA
Question 9: Fiberglass laminate damage that extends completely through one facing and into the core
Answer:
- Cannot be repaired
- requires the replacement of the damaged core and facing.
- can be repaired by using a typical metal facing patch.
Question 10: The classification for high tensile strength fiberglass used in aircraft structures is
Answer:
- E-glass
- S-glass
- G-glass
Question 11: When dope-proofing the parts of the aircraft structure that come in contact with doped fabric, which of the following provide an acceptable protective coating?
Answer:
- Resin impregnated cloth tape and cellulose tape.
- Aluminum foil and resin impregnated cloth tape.
- Aluminum foil and cellulose tape.
Question 12: When making repairs to fiberglass, cleaning of the area to be repaired is essential for a good bond. The final cleaning should be made using
Answer:
- MEK
- Soap and water
- Thixotropic agent
Question 13: Before applying a protective coating to any unpainted clean aluminum, you should
Answer:
- wipe the surface with methyl ethyl ketone (MEK).
- remove any contaminants from the surface with a paper towel.
- avoid touching the surface with bare hands.
Question 14: What reference tool is used to determine how the fiber is to be oriented for a particular ply of fabric?
Answer:
- Fill clock (or compass).
- Bias clock (or compass).
- Warp clock (or compass).
Question 15: Which defect in aircraft finishes may be caused by adverse humidity, drafts, or sudden changes in temperature?
Answer:
- Orange peel
- Blushing
- Pinholes
Question 16: Pin knot clusters are permitted in wood aircraft structure provided
Answer:
- They produce a small effect on grain direction
- They have no mineral streaks
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