Wood, Fabric And Finishes Subject Test Ii

Front 1

What function does aircraft fabric coverings perform?

Back 1

To provide a light airproofskin for lifting and control surfaces.

To provide structural strengthto otherwise weak structures.

To cover other non-liftingparts of an aircraft to reduce drag, sometimes forming a fairing.

To protect the structure from the elements.

Front 2

Name the two classes of aircraft coverings.

Back 2

Organic and Synthetic

Front 3

What are two popular natural or organic fabrics used to cover FAA certificated aircraft?

Back 3

Cotton and Linen

Front 4

Name two inorganic material used to cover FAA certificated aircraft

Back 4

Polyesters and glass fibers aircraft

Front 5

According to FAR part 43 appendix A, what type of repair is the complete recovering of an aircraft?

Back 5

Major repair

Front 6

Namethree advantages of using polyester fabrics over cotton fabrics

Back 6

Lower cost, additional strength, and weight savings.

Front 7

Grade A cotton fabrics are produced under which TSO and or Mil-Spec?

Back 7

TSO-C15,MIL-C-5646, AMS- 3806

Front 8

Whatis the TPI of Grade A cotton fabric used to cover an aircraft?

Back 8

80 to 84 TPI

Front 9

Grade A cotton fabric can be used on aircraft with a wing loading of greater than 9 pounds per square foot and a never exceed speed of 160 MPH.

Back 9

Grade A cotton fabric can be used on aircraft with a wing loading of greater than 9 pounds per square foot and a never exceed speed of 160 MPH.

Front 10

What is the allowable fabric deterioration of an aircraft fabric before it must be replaced?

Back 10

No less than 70% of its original strength, no more than 30% fabric deterioration.

Front 11

What is the purpose of and when is the fungicidal agent applied to organic fabrics when recovering an aircraft?

Back 11

to prevent fabric deterioration and applied before dope.

Front 12

When must an aircraft have its fabric strength tested?

Back 12

Every 100 hours or annually.

Front 13

What are the two testing devices used to test the strength of aircraft fabrics?

Back 13

Maule Tester and seyboth tester.

Front 14

What are the two types (names) of dopes used on cotton fabrics?

Back 14

Nitrate and butyrate dopes

Front 15

How can aircraft wood be protected from doped cotton fabrics?

Back 15

by using one or a combination of one ofaluminum foil, cellulose tape and dope proof paint.

Front 16

How can the aircraft fabrics be protected from sharp edges such as nails, sharp corners, rivets, bolt heads, etc.?

Back 16

By covering them with an anti-chafe tape toprevent cutting and wearing through the fabric after installation.

Front 17

What are the two acceptable covering methods, when recovering an aircraft?

Back 17

Envelope or the blanket method.

Front 18

What are the four types of machine sewn seams used when recovering an aircraft?

Back 18

Plain overlap seam, folded fell seam,modified folded fell seam and French fell seam.

Front 19

What type of tape is used over ribs and structures in which fabric is to be attached when recovering an aircraft?

Back 19

Reinforcing tape

Front 20

When inspecting the fabric on an aircraft, name five things that you would be looking for.

Back 20

Loose finishing tape, Loose reinforcingpatches, chafing under fairings, brittle, cracked, peeling, and deterioratingcoatings, fabric tears and rock damage, broken or missing rib lacing, rodent orbird nests.

Front 21

What defects could be caused by excessive tension in an aircraft fabric covering?

Back 21

Deformation or warpage of criticalcomponents such as: wing ribs, longerons, trailing edges, etc.

Front 22

What could cause excessive tension on an aircraft covered with cotton?

Back 22

Excessive dope film on new covering or continuous shrinking of an originally satisfactory dope film.

Front 23

What could cause excessive slack or wrinkles in an aircraft covered with cotton?

Back 23

Inadequately applied dope film, poor dopequality, fabric installed with excessive slack, bend broken or warped structure.

Front 24

What causes cotton fabric to tauten around the aircraft structure?

Back 24

Nitrate dope.

Front 25

Name three methods that may be used to attach the fabric covering to the aircraft structure.

Back 25

Method used by the manufacturer, envelope, and blanket methods.

Front 26

Name the three types of tapes commonly used when recovering an aircraft structure.

Back 26

Method used by the manufacturer, envelope, and blanket methods.

Front 27

What causes the polyester fabric to tauten around the aircraft structure?

Back 27

Combined effect of heat.

Front 28

Which fabric will not deteriorate when exposed to ultraviolet light?

Back 28

Fiber Glass.

Front 29

Name five causes of cotton fabric deterioration?

Back 29

UV radiation, mildew, acid rain, fungus from moister, dew, fog and pollution and age.

Front 30

How can the different types of aircraft fabrics be identified?

Back 30

Burn test, color and TPI (treads per Inch).

Front 31

Are all repairs to aircraft fabric coverings a major repair?

Back 31

No

Front 32

What steps and forms are taken and completed when an aircraft covering has undergone a major repair?

Back 32

Initiate FAA form 337, have FAA approval,have repair inspected by an IA.

Front 33

What factors are the basis for determining the required strength of an aircraft fabric covering system on a particular aircraft?

Back 33

Breaking strength in width (up to less than70%), wing loading and Vne.

Front 34

Name the two types of dopes commonly used on Mercerized Grade A cotton fabric coverings?

Back 34

Nitrateand butyrate.ing and Vne.

Front 35

What two purposes does the dope serve when covering an aircraft with cotton fabric?

Back 35

Protection from environment, increase strenght

Front 36

What purpose does the dope that contains aluminum flakes/powder serve?

Back 36

Blocksunlight and reflect heat

Front 37

State three types of materials that may be used to protect the underlying aircraft structure from the harmful affects of the dope, prior to recovering an aircraft with cotton fabric?

Back 37

Aluminum foil, cellulose tape and dope proof paint.

Front 38

The strength classification of aircraft fabric coverings is based on _tensile_strength.

Back 38

The strength classification of aircraft fabric coverings is based on _tensile_strength.

Front 39

What is the major draw back to cellulose nitrate dopes?

Back 39

Made covering materialtranslucent and exposed interior framework to harmful UV rays.

Front 40

Which type of tape is used to cover the ribs prior to rib lacing?

Back 40

Reinforcingtape

Front 41

Name three types of methods used to attach the fabric to the aircraft wing ribs?

Back 41

Screws,rivets, and lacing.

Front 42

Why must you electrically ground an aircraft that is being recovered with cotton fabric?

Back 42

To prevent static electricitybuild-up.

Front 43

Which fabric term describes the manufactured edge of the fabric as it comes off the manufacturer roll?

Back 43

Salvage edge .

Front 44

In accordance with FAR Part 43 Appendix A, when is the repair of a fabric covering considered a major repair?

Back 44

Repairs involving an area greaterthan that required to repair two adjacent ribs or replacement of fabric on partssuch as wings, fuselages, and control surfaces.

Front 45

When recovering an aircraft, why is it a good idea to hang on to the old removed fabric?

Back 45

It will be used as a template forinspection holes and size.