When reading a blueprint, a dimension is given as 5.327 inches +.007 -.003. Which statement is true?

The maximum acceptable size is 5.334 inches, The minimum acceptable size is 5.324 inches.

How many of these factors are considered essential knowledge for x ray exposure?

Material thickness and density., Film characteristics., Exposure distance and angle.

Damaged anodized coating can be repaired by:

Applying a chemical surface treatment

If dye penetrant inspection indications are not sharp and clear, the most probable cause is that the part:

Was not thoroughly washed before developer was applied.

A hydraulic system schematic drawing typically indicates the:

direction of fluid flow through the system.

The rust or corrosion that occurs with most metals is the result of:

a tendency for them to return to their natural state.

How is the locking feature of the fiber-type locknut obtained?

By the use of an unthreaded fiber locking insert.

Alclad is a metal consisting of:

pure aluminum surface layers on an aluminum alloy core.

what is the best way to start cleaning an aircraft window

Flush the surface with clean water.

Before applying any chemical surface treatment on bare metal, perform a water break test. This test will

Make certain that the metal is completely clean

Where is an AN clevis bolt used in an airplane?

Only for shear load applications.

Generally speaking, bolt grip lengths should be

equal to the thickness of the material which is fastened together.

What methods are suitable to use to detect cracks open to the surface in aluminum forgings and castings

Dye penetrant inspection., Visual inspection., Ultrasonic inspection., Eddy current inspection.

For which of the following reasons would a water break test be conducted?

To make certain that a bare metal surface is thoroughly clean.

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Q8 & 9: cleaning and corrosion control Block 2 Final : G-16: Heat treat Q5, G-14: NDI quiz 3 & 4: Materials and processes G-7: Drawings

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Questions 99

Answers

1
The drawings often used in illustrated parts manuals are:
exploded view drawings.
detail drawings.
block drawings.
2
The two types of mediums for magnetic particle are:
High retentivity and low permeability
Wet and dry
Iron oxides and ferric oxides
3
An assembly drawing shows how multiple detail parts form and assembly or sub assembly
True
False
4
Method of magnetic particle inspection used most often to inspect aircraft parts for invisible cracks and other defects
Inductance.
Continuous.
Inrermittent
Residual.
5
In what type of electrical diagram are images of components used instead of conventional electrical symbols?
A block diagram.
A sketch
A pictorial diagram.
A schematic diagram.
6
What is the max diameter of the hole for the clevis pin?
20/64"
19/64"
20/32"
1/8"
7
Which condition indicates a part has cooled too quickly after being welded?
Discoloration of the base metal.
Gas pockets, porosity, and slag inclusions.
Cracking adjacent to the weld.
8
When reading a blueprint, a dimension is given as 5.327 inches +.007 -.003. Which statement is true?
The maximum acceptable size is 5.334 inches
potato
The minimum acceptable size is 5.390 inches.
The minimum acceptable size is 5.324 inches.
9
An assembly drawing has enough detail to allow a part to be manufactured
False
True
10
What material symbol is frequently used in drawings to represent all metals?
Steel.
Aluminum.
Duranium
Cast iron.
11
How many of these factors are considered essential knowledge for x ray exposure?
Material thickness and density.
Processing of the film.
Film characteristics.
Exposure distance and angle.
12
Wiring diagrams indicate the size of wires?
False
True
13
Damaged anodized coating can be repaired by:
Reheatreating
Applying a thin coat of primer
Applying a chemical surface treatment
Using a mild cleaner
14
A discontinuity may or may not affect the usefulness of a part.
True
False
15
If dye penetrant inspection indications are not sharp and clear, the most probable cause is that the part:
Clean your glasses
Was not thoroughly washed before developer was applied.
Was not correctly degaussed before the developer was applied.
Has no appreciable damage.
16
A hydraulic system schematic drawing typically indicates the:
specific location of the individual components within the aircraft.
direction of fluid flow through the system.
amount of pressure in the pressure and return lines, and components
17
Select the solvent recommended for wipe-down of cleaned surfaces just before painting.
Aromatic naphtha.
Aliphatic naphtha.
Dry-cleaning solvent.
18
What is generally used in the construction of aircraft engine firewalls?
Stainless steel.
Chrome-molybdenum alloy steel.
Titanium nickel alloy.
Aramid
19
what is F
edge joint
lap joint
fillet weld
double butt weld
20
Which material section-line symbol indicates cast iron
2
1
3
21
The rust or corrosion that occurs with most metals is the result of:
blocking electron flow in homogenous metals, or between dissimilar metals
a tendency for them to return to their natural state.
electron flow in or between metals from cathodic to anodic areas.
22
What nondestructive testing method is suitable for surface and subsurface defects of most metals, plastics, and ceramics
Dye Pen
Ultrasonic inspection
Eddy current inspection.
Magnetic particle inspection
23
1,2,and 3, view drawings are a common form for what?
Isometric
Obleque
Orthographic projection
Schematic
24
A drawing in which the subassemblies or parts are shown as brought together on the aircraft is called:
an installation drawing.
an assembly drawing.
a detail drawing.
25
How is the locking feature of the fiber-type locknut obtained?
By making threads in fiber insert smaller than in the load section
By a fiber insert held firmly in place at the base of the load carrying sec
By the use of an unthreaded fiber locking insert.
26
a discontinuity is defined as an interruption in the normal physical structure or configuration of a part.
False
True
27
Select the solvent used to clean acrylics and rubber
Aromatic naphtha
Methyl ethyl ketone.
Aliphatic naphtha.
28
Aircraft bolts with a cross or asterisk marked on the bolt-head are
standard steel bolts.
made of aluminum alloy.
close tolerance bolts.
29
Which material cannot be heat treated repeatedly without harmful effects?
Unclad aluminum alloy in sheet form.
6061-T9 stainless steel.
Clad aluminum alloy.
30
Caustic cleaning products used on aluminum structures have the effect of producing:
passive oxidation.
improved corrosion resistance.
corrosion.
31
Alclad is a metal consisting of:
Multiple layers of sheet aluminum alloy
aluminum alloy surface layers and a pure aluminum core.
a homogeneous mixture of pure aluminum and aluminum alloy
pure aluminum surface layers on an aluminum alloy core.
32
Aircraft bolts are usually manufactured with a
the major alloying element.
class 2 fit for the threads
class 1 fit for the threads.
class 3 fit for the threads.
33
what is the best way to start cleaning an aircraft window
Flush the surface with clean water.
Gently wipe the surface with a clean, dry, soft cloth.
soft cloth moistened with de-mineralized or distilled water.
34
The datum is always the firewall
False
True
35
Before applying any chemical surface treatment on bare metal, perform a water break test. This test will
Ensure that water does not break the part
Make certain that the anodized coating has been fully removed
Make certain that the metal is completely clean
Make certain that the surface is fully covered with the anodized coat
36
You demagnetize a part by moving the part slowly out of the AC magnetic field produced by the AC coil
False
True
37
A nonelectrolyte chemical treatment for aluminum alloys to increase corrosion resistance and paint-bonding qualities is
dichromating
anodizing.
alodizing.
38
What is descriptive of the annealing process for steel during and after it has been annealed?
Slow cooling; low strength.
Rapid cooling; high strength.
Slow cooling; increased resistance to wear.
39
which image is correct
3
1
2
40
High permeability means minimal amount of magnetic energy is needed to attract the particles to the defect
True
False
41
What may be used to remove corrosion from highly stressed steel surfaces?
Fine-grit aluminum oxide.
Medium-grit carborundum paper.
Steel wire brushes.
42
In the corrosion process, it is the cathodic area or dissimilar cathodic material that corrodes.
False
True
43
Normalizing is a process of heat treating ferrous based metals only
True
False
44
Low retentivity means particles themselves wont become magnetized and attracting one another.
False
True
45
Where is an AN clevis bolt used in an airplane?
where the manual says, duh...
Only for shear load applications.
Where external tension loads are applied.
For tension and shear load conditions.
46
Generally speaking, bolt grip lengths should be
equal to the thickness of the material which is fastened together.
equal to the thickness of the material fastened together, plus 1/4 dia.
made of aluminum alloy
one and one-half times the thickness of the material
47
Orthographic projection can show as many as 6 views
False
True
48
Hidden lines are described how?
Lines... that hide?
Medium solid line.
Dashed line, of medium weight
Alternate short and long light dashes.
49
What methods are suitable to use to detect cracks open to the surface in aluminum forgings and castings
Dye penetrant inspection.
Visual inspection.
Ultrasonic inspection.
Eddy current inspection.
50
For which of the following reasons would a water break test be conducted?
make certain that a newly alodized aluminum surface is sufficiently coated
make certain that an anodizing coating has been sufficiently removed
To make certain that a bare metal surface is thoroughly clean.
51
Flammable materials should be stored in:
An OSHA approved area
An area that is roped off
Next to matches
An area close to the exterior doors
52
Galvanic corrosion is likely to be most rapid and severe when:
surface area of cathodic metal is smaller than surface area of the anodic
surface area of the anodic metal is smaller than the surface area of the ca
surface areas of the anodic and cathodic metals are approximately the same.
53
In the four-digit aluminum index system number 2024, the first digit indicates
the major alloying element.
the percent of alloying metal added.
the number of major alloying elements used in the metal.
standard steel bolts.
54
You can demagnetize a part by continually reversing a DC magnetizing force gradually decreasing.
False
True
55
Which of the listed conditions is NOT one of the requirements for corrosion to occur?
The presence of an electrolyte.
Electrical contact between an anodic area and a cathodic area.
The presence of a passive oxide film.
56
Which of the following are acceptable to use in cleaning anodized surfaces?
Aluminum wool.
Fiber bristle brush.
Steel wool.
Stainless steel wire brush.
57
When the specific torque value for nuts is not given, where can the recommended torque value be found?
Technical Standard Order.
43-4b
AC 43.13-1B.
. AC 43.13-2A.
58
Engine parts made from magnesium and its alloys are cleaned by
Aluminized sand paper
proper commercial cleaner, decarborizer, and grit blasting hard deposits
Use MEK to wash and soak the parts
Use a caustic solution to clean the hard deposits
59
A part which is being prepared for dye penetrant inspection should be cleaned with:
the penetrant developer.
yes
a volatile petroleum-based solvent.
water-base solvents only.
60
Which of the following are acceptable to use when utilizing chemical cleaning agents on aircraft?
Synthetic fiber wiping cloths when using a flammable agent.
Cotton fiber wiping cloths when using a flammable agent.
Atomizing spray equipment
spaceballs the flamethrower
61
lifting or flaking of the metal at the surface due to the delamination of grain boundarie
exfoliation
brinelling.
granulation
62
Fayed surfaces cause concern in chemical cleaning because of the danger of:
forming passive oxides.
corrosion by imbedded iron oxide.
entrapping corrosive materials.
63
Unless otherwise specified, torque values for tightening aircraft nuts and bolts relate to:
clean, lightly oiled threads.
clean, dry threads.
Rivets
both dry and lightly oiled threads.
64
Station numbers are always referenced from
The leading edge of the wing
Datum
The phone book
The firewall
65
Select a characteristic of a good gas weld.
The weld should taper off smoothly into the base metal.
The depth of penetration shall be sufficient to ensure fusion of the filler
99 percent commercially pure aluminum.
The height of the weld bead should be 1/8 inch above the base metal.
66
Identify the bottom view of the object shown.
2
1
3
67
The aluminum code number 1100 identifies what type of aluminum?
Aluminum alloy containing zinc.
Aluminum alloy containing 11 percent copper.
AC 43.13-1B
99 percent commercially pure aluminum.
68
non-approved commercial cleaning compounds can cause chemical reactions to aircraft structures,This might cause?
An inability to properly clean the part
parts to react with the commercial compound....
Hydrogen embrittlement of the part
Nitrogen embrittlement of the part
69
What are case hardening techniques?
Nitriding
Tempering.
Normalizing.
Carburizing
70
Magnetic Particle inspection can only detect flaws in ferromagnetic material:
Deep in the material
Near the surface
All are true
On the surface
71
A detail drawing has enough information to allow a part to be manufactured
True
False
72
Why is steel tempered after being hardened?
to soften
increase ductility
increase its strength
to reduce brittleness
73
What nondestructive testing method is used to determine the soundness of a honeycomb bonded repair has cured?
Eddy current test.
Ultrasonic test.
Metallic ring or coin test.
Dye pen
74
Which of the following materials may be inspected using the magnetic particle inspection method?
Copper alloys.
Magnesium alloys.
Aluminum alloys.
Iron alloys.
75
In performing a dye penetrant inspection, the developer:
thoroughly cleans the surface prior to inspection.
develops
acts as a blotter to produce a visible indication.
seeps into a surface crack to indicate the presence of a defect.
76
Spilled mercury on aluminum causes rapid and severe corrosion that is very difficult to control.
True
False
77
What corrosion may attack the grain of aluminum alloys when heat treatment process has been improperly accomplished?
Intergranular.
Concentration cell.
Fretting.
Rust
78
identify center line
2
3
1
4
79
'4130' designating chromium molybdenum steel, the first digit indicates the:
4 thousandths of an inch thick
basic alloying element.
percentage of carbon in the alloy in hundredths of a percent
percentage of the basic element in the alloy.
80
What method of mag particle inspection may be used in practically all circular and longitudinal magnetization procedures
Continuous
Inductance
Residual
81
Fretting corrosion is most likely to occur:
only when two dissimilar metals are in contact.
when two surfaces fit tightly together but can move relative to one another
when two surfaces fit loosely together and can move relative to another
82
mechanical force is repeatedly applied to metals at room temperature, rolling, hammering, or bending, the metals becomes
Broken
Cold worked, strain or work hardened
Artificially aged
Stress corrosion cracked
83
In Galvanic or Electro-Chemical Series for metals, the most anodic metals are ones that give up electrons easily
True
False
84
Unless otherwise specified or required, aircraft bolts should be installed so that the bolt-head is:
upward, or in rearward direction.
installed.....
downward, or in a forward direction.
upward, or in a forward direction
85
which number is correct?
02.851
0.2851.
0.2901
.1138
86
Almost all objects are composed of one or some combination of the
Triangle, circle, cube, cylinder, cone, and sphere
^^vv<><>ba "start'
Triangle, plane, arc, line, square, and polygon.
Angle, arc, line, plane, square, and circle.
87
Why is it considered good practice to normalize a part after welding?
To remove the surface scale formed during welding.
To increase the hardness of the weld.
To relieve internal stresses developed within the base metal.
88
If steel is heated to its critical temperature and allowed to cool slowly:
It will become soft
it will break
It will harden
It will corrode
89
One way a part may be demagnetized after magnetic particle inspection is by
Hit it against something hard, like a marines head
Slowly moving the part out of an ac magnetic field of sufficient strength.
Subjecting the part to high voltage, low amperage ac.
Slowly moving the part into an ac magnetic field of sufficient strength.
90
The testing medium that is generally used in magnetic particle inspection utilizes a ferromagnetic material that has
High permeability and high retentivity.
Low permeability and high retentivity.
High flux capacitance
High permeability and low retentivity.
91
Sketches can be made easier using
plain white paper.
graph paper.
doing it right
artist's paper.
92
Micrometers are precision measuring instruments. What tool can be used to check their accuracy?
Measuring rule
Dial indicator
A gauge block
93
A bolt with a single raised dash on the head is classified as an
AN corrosion-resistant steel bolt.
NAS standard aircraft bolt.
NAS close tolerance bolt.
94
Which of the following are the desired effects of using Alodine on aluminum alloy?
Relieved surface stresses.
A smooth painting surface.
Increased corrosion resistance.
A slightly rough surface.
95
Corrosion should be removed from magnesium parts with a:
stiff, nonmetallic brush.
silicon carbide brush.
carborundum abrasive.
96
Eddy current requires little preparation for a part
True
False
97
Which of the following describe the effects of annealing?
Hard outside, soft inside
Decrease in internal stress.
Softening of the metal.
Improved corrosion resistance.
98
The reheating of a heat treated metal, such as with a welding torch:
Cause it to catch fire
Has little or no effect on a metal's heat treated characteristics.
Can significantly alter a metal's properties in the reheated area.
Has a cumulative enhancement effect on the original heat treatment.
99
castle tension nut cotter pin hole does not align within the recommended torque range, the acceptable practice is to:
change washers and try again.
what?
tighten below the torque range.
exceed the recommended torque range by no more than 10 percen

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