Aircraft Fabric Questionnaire

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Name three ways to mechanically bond fabric to ribs or other underlying structure

Clips, screws, rivets, and lacing cords

What is the danger associated with cellulose acetate nitrate dope?

Highly flammable

What is the advantage of utilizing the envelope method aircraft covering?

Saves time and has better seams

How are cotton and linen fabrics tautened?

Use of tautening dopes?

What can be used to ensure rib alignment when shrinking fabric

rib lacing

What percentage of the original strength of fabric must be retained to remain airworthy?

70%

What visual identification does certified fabric possess?

A repeated stamp on the fabric

What standard must all fabric types conform to for installation on certificated aircraft?

Aeronautical Material Standards (AMS)

What determines the spacing for rib stitching

Airspeed

What tpe of hand stitch is commonly used for repairs of fabric?

Baseball stitch

Name two methods for covering aircraft structures

Blanket Method Envelope Method

Name the two organic fabrics

Cotton Linnen

What is the most extensively used synthetic fabric?

Dacron (Polyester)

What must be done to structures that will come in contact with dope finishes?

Dope proofed

Which statement is true regarding paint system compatibility?

Epoxy finishes can be applied over wash primer coats

Select at least three types of protection that should be used while working with chemicals

Eye protection, gloves, respirator

Which of the following is a hazard associated with sanding on fabric covered surfaces during the finishing process?

Fire

Fungicidal dopes are used in aircraft finishing as which coat in the process?

First coat

Linen is derived from what source?

Flax plant

Name the four types of sewn seams

French fell, Folded fell, Modified folded, and Plain Overlap

What grade cotton is required for aircraft fabric?

Grade A

What is used to reinforce drain openings on aircraft fabric?

Grommets

When sanding fabric, it is important to do what?

Ground the part to prevent static electricity

In the covering process, when is the surface type applied?

Last fabric applied, applied during the second coat of dope

What type of solvent is used for thinning dopes?

MEK

What knot is commonly used in rib stitching

Modified Seine

Name the two types of dopes used in aircraft fabric

Nitrate Butyrate

What are the two types of fabric in use for aviation?

Organic Synthetic

Fabric repairs should reinstate two qualities, what are they?

Original strength and quality

What is the purpose of silver butyrate dope in finishing fabric

Protect fabric from UV rays

What is the purpose of the surface tape?

Protect underlying fabric around edges

What is the purpose of reinforcing tapes?

Protects fabric around mechanical fasteners

Define warp as related to fabric.

The length of the fabric

Define fill as related to fabric.

Width of the fabric

What two factors determine the quality and strength requirements of fabric for aircraft

Wing loading and Vne

Aluminum-pigment in dope is used primarily to

add UV protection

Define bias as related to fabric.

diagonally to the warp or threads

Tautening dopes were used to shrink dopes. How are synthetic fabrics shrunk?

heat

A correct use of acetone is to

used to wipe down surfaces


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