Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Airframe > Wood Structures/Fabric Covering/Painting + Finishing > Flashcards

Wood Structures/Fabric Covering/Painting + Finishing Flashcards

1
Q

The negative aspect of wood structures:

A

Can rot and mildew

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Positive aspects of wood structures:

A

Can support its own weight.
Hardens over time.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where is rot most likely to occur on a wood structure aircraft?

A

In the lowest points.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

T/F
Absolutely no rot is allowed on a wooden aircraft structure.

A

True.
Absolutely none.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Ways to detect rot:

A

Smell first, then visual.
Pierce with knife.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where does the strength of wood lie?

A

Across the grain.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the wood by which all other woods’ characteristics are judged?

A

Sitka spruce is the reference wood.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Minimum number of rings allowed per square inch in aircraft wood:

A

6 rings.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Maximum slope of grain deviation in aircraft wood:

A

1” : 15”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Main way that wood structures are held together:

A

Glue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

If glue fails what can be done?

A

Reapply glue.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What type of glue is used in wood structure?

A

Epoxy glue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What should be the goal of a glued joint?

A

To be stronger than the wood itself.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

T/F
Joined portions of wooden parts should not be sanded.

A

True.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The grain of the different layers of plywood are _______.

A

Perpendicular to each other.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The grain of the different layers of laminated wood are ________.

A

In the same direction.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

In which direction should the grain of a wood repair be?

A

Same direction as the part being repaired.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The purpose of any repair is to restore ________.

A

Strength.
Stiffness.
Shape.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What non-destructive method is used to test the deterioration limit of fabric covering?

A

A maule fabric tester pushed into fabric at a specified pressure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the deterioration limit?

A

No less than 70% of original strength.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Two categories of fabric covering:

A

Organic.
Non-organic.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Types of organic fabric:

A

Cotton.
Linen.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Types of non-organic fabric:

A

Dacron.
Ceconite.
Superflite.
Poly-fiber.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Grades of cotton fabric:

A

Grade A.
Intermediate.
Glider cloth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Material by which all organic fabrics are judged:

A

Grade A cotton

26
Q

What factors must be considered when choosing the type of fabric?

A

Wing loading in pounds per square foot.
Never exceed speed (Vne)

27
Q

What is used to tighten organic fabric over the structure?

A

Butyrate dope.

28
Q

What factors must be considered to determine the spacing of fabric lacing?

A

In or out of prop wash.
Never excess velocity.(Vne)

29
Q

What type of knot is most generally used for rib stitching?

A

Modified Seine knot.

30
Q

How is non-organic fabric tightened on the structure?

A

Apply cement and filling material followed by heating.

31
Q

Purposes of paint:

A

Prevents corrosion.
Aerodynamically clean.
Weather resistant.

32
Q

What must be done to original paint before repainting?

A

Remove original paint to prevent weight increase.

33
Q

Most common type of primer:

A

Epoxy primer.

34
Q

What is used as a spot primer?

A

Zinc chromate.

35
Q

What happens if wash primer is not allowed to cure properly?

A

Filiform corrosion will form.

36
Q

_____ slows down the rate of evaporation of dope.

A

Retarder.

37
Q

Used to restore resilience to old dope film and repair ring worming:

A

Rejuvenator

38
Q

Types of finishing problems:

A

Poor adhesion.
Blushing.
Pinholes.
Orange peel.
Fisheyes.
Runs and sags.
Dope roping.
Ringworms.

39
Q

What dictates spray pattern of a spray gun?

A

Wing port position.
Air pressure.

40
Q

How far from the surface should the spray gun be held?

A

6”-10”

41
Q

What shape indicates a correct spray pattern?

A

Long thin oval.

42
Q

Insufficient spray gun air pressure is indicated by what shape spray pattern?

A

Short, more circular oval.

43
Q

Trade names of fabric made from polyester fibers:

A

Ceconite.
Superflite.
Poly-Fiber.

44
Q

3 requirements of wood used in aircraft:

A

12% moisture content.
Min. of 6 rings per inch.
Max. of 1:15 slope of grain.

45
Q

Possible wood defects:

A

Cross grain.
Wavy grain.
Knots.
Pin knot clusters.
Pitch pockets.
Mineral streaks.

46
Q

Technique of cutting a log to produce planks with vertical grain.

A

Quartersawing wood.

47
Q

T/F
Flat grain is desirable for aircraft wood planks.

A

False.
Vertical grain.
Grain that is @45 degrees or more to the wide dimension of the wood plank.

48
Q

A small plate attached to two or more members of a truss structure:

A

Gusset

49
Q

A joint in a wood structure in which the ends to be joined are cut in a long taper.

A

Scarf joint

50
Q

What is required by the FAA when re-covering an aircraft?

A

Form 337 for major repair.

51
Q

What form is required when changing the fabric type on an aircraft?

A

STC (supplemental type certificate)

52
Q

The fabric tester that actually pierces the fabric during the test:

A

Seyboth fabric tester

53
Q

Two basic types of dopes:

A

Nitrate.
Butyrate.

54
Q

The material placed over the ribs before lacing:

A

Reinforcing tape.

55
Q

Material placed and doped over rib lacing:

A

Surface tape.

56
Q

Technique that prevents fabric raveling and provides additional surface area:

A

Pinking. (Pinked edges)

57
Q

Major drawback of nitrate dope:

A

Very flammable

58
Q

Three types of finishing systems:

A

Acrylic lacquer.
Synthetic enamel.
Polyurethane. (Most used)

59
Q

First coat of finishing material:

A

Tack coat

60
Q

Where are the requirements for color and placement of registration numbers found?

A

FAR Part 45

61
Q

ATA code for placards and markings.

A

ATA 11

62
Q

Each pass of the spray gun should overlap all but ____ or ____inches of the previous pass.

A

2, 3

Airframe (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions