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Autobody Technician Year 3 > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

________ roll buckles on combination type panels are not unrolled equally as is done on double and single crowned panels.

A

Collapsed

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2
Q

______ quench the hot spots before the metal has turned _____; otherwis, the metal will crystallize, harden and possibly crack.

A

Never quench

Black

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3
Q

Roughing out is also reffered to as ________.

A

Unlocking

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4
Q

When discing to do the work of the file, a _______ action is recommended.

A

Crosscut

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5
Q

All buckles are unrolled __%, then __% and so on, until they are all ___% completed at approximately the same time.

A

10%

20%

100%

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6
Q

In X filing, new scratch marks cross the previous ones at a __° angle.

A

45°

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7
Q

The word _______ also means that the metal has shrunk internally as well as dimensionally.

A

Collapsed

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8
Q

The damage created by a _____ buckle is usually minor.

A

Hinge

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9
Q

Aluminum has elastic qualities similar to those of steel, but aluminum elasticity is much _____.

A

Lower

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10
Q

___ bars are used to pry out damaged areas that cannot be reached with a dolly.

A

Pry

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11
Q

Small low spots can be raised by using the side or edge of the face of the ____ hammer first.

A

Pick hammer

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12
Q

_______ is used to bring a panel back to its original position, therby restoring the metal back to its proper contour and thickness.

A

Shrinking

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13
Q

Never drive up a ______, whether it is a roll or hinge buckle. This is called ______ the back of the buckle, and severe additional damage is bound to occur in the form of collapsed roll buckles.

A

buckle

breaking

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14
Q

The force of the hammer blows and the amount of arm pressure exerted against the dolly determine the rate and amount of _______ that will occur in the area.

A

Stretching

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15
Q

The hammer-___-dolly method is generally recommended for aluminum panel straightening.

A

Hammer-off-dolly

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16
Q

_______ damage is damage that cannot be detected or seen until dismatling takes place.

A

Hidden damage

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17
Q

______ hammer-__dolly is used to smooth and level small surface irregularities left in the damaged metal after the area has been roughed out and brought back to its original shape.

A

Light Hammer-on-dolly

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18
Q

Metal _______ is the operation of relieving stresses and strains in a panel caused by damage in the form of crevices or crowns.

A

Bumping

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19
Q

Do not disk off the panel for the first time unless you can remove __% to __% of the paint without turning the disk on ____ to get out paint from low areas.

A

80-90%

Edge

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20
Q

The ______ the shrink, the harder it is to control panel warpage.

A

Larger

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21
Q

Before attempting to heat shrink aluminum, apply a heat crayon to the metal that will change color at about ___°F (400°C)

A

750°F

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22
Q

Both ridges and ______ contain work hardening, with the amount depending on the degree of bend.

A

channel

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23
Q

When _______ the top part of the disc is used, the grinder is moved up and down on the panel with each cut slightly overlapping the last.

A

Buffing

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24
Q

Hiddden damage can be direct or indirect damage, but is usually _______.

A

indirect

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25
Q

_________ is done by using the top part of the disc and moving the grinder back and forth from left to right.

A

Crosscutting

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26
Q

_______ damage should always be the last part of the damage to be repaired.

A

Direct damage

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27
Q

A _____ buckle is a more severe type of damage than a hinge buckle, and considerable impact force is required to create this type of buckle.

A

Roll buckle

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28
Q

When filing relatively flat panels, either hold the file at a __° angle and push it straight or hold it straight and push at a __° angle to the line of travel.

A

30°

30°

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29
Q

A _____ pick will raise a larger area per blow, but is ______ to see.

A

Blunt pick

Harder

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30
Q

______ can be used in a number of ways, such as to pry out dents.

A

Spoons

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31
Q

Creases in enclosed body panels that cannot be accessed from the back side can be pulled out with a _____ hammer.

A

Slide hammer

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32
Q

________ is used for; paint removal, fast rough cutting of sheet metal and grinding down welds.

A

Crosscutting

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33
Q

________ drills come in sizes that are determined by the size of the chuck or diameter of the chuck when its fully opened.

A

Electric drills

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34
Q

Roughing out is the step in which the dimensions are established and commonly stated as getting _______ alignment.

A

Perimeter

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35
Q

When pulling a crease with pull pins, work the crease out from the _________ end to the ______.

A

Shallowest

deepest

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36
Q

________ plastic body filler is used to eliminate minor surface irregularities.

A

Aluminized

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37
Q

________ cannot be done until all rough out is complete.

A

Finishing

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38
Q

_______ ____ buckles are the most severe type of buckle to repair.

A

Collapsed Roll Buckles

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39
Q

If the crease is accessible from the inside, a ___ bar or a body _____ are excellent tools for repairing creases.

A

Pry bar

Body spoon

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40
Q

A simple roll is also called a ______.

A

Ridge

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41
Q

The pivot point, or hinge, has been bent past its ______ limit and ____ hardened, preventing the relatively undamaged elastic metal on the sides from returning to their original position.

A

Elastic limit

Work hardened

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42
Q

Hold the grinder no more than __°

A

20°

43
Q

All buckles are _______ damage.

A

indirect

44
Q

______ damage is damage caused by making contact, and shows as a gouge, scratch or tear.

A

Direct

45
Q

The hammer-___-dolly method is used to straighten or move damaged metal.

A

Hammer-off-dolly

46
Q

_______ lines are flanges or partial boxed sections used along the edges of panels to incorporate added strength.

A

Perimeter lines

47
Q

________ out is one of the first steps in shaping a metal panel.

A

Roughing out

48
Q

Metal is heated in a shrinking operation to make it _______.

A

Ductile

49
Q

________ damage is all other damage except direct damage.

A

Indirect

50
Q

A _______ sanding stick or block has a special shape to match the body lines or panel contours for specific model cars

A

Contour

51
Q

Do not heat the metal past a _____ red. It will start to melt, and you may burn a hole.

A

Cherry Red

52
Q

When using a hacksaw, the recommened number of teeth per inch for sheet metal work is approximately __ to __.

A

24 to 32

53
Q

Do not _____ finish any one panel until _ panels are completly roughed out.

A

Metal finish

all

54
Q

During repair, ____ buckles are unrolled and _____ buckles are opened; otherwise severe additional damage will result.

A

Roll buckles

Hinge buckles

55
Q

The greater the pressure exerted on the grinder, the faster it will cut.

True or False

A

False

56
Q

Space each hammer blow _/_” to _/_” apart until the damaged metal is level.

A

3/8” to 1/2”

57
Q

In cross-filing, new scratch pattern marks are filed across the previous one at a __° angle.

A

90°

58
Q

When shrinking, bring the cone of the flame straight down to within _/_” (3.2mm) of the metal and hold it steady until the metal starts to turn red.

A

1/8”

59
Q

______ ____ buckles can be identified by the familiar arrow design formed.

A

Collapsed roll buckle

60
Q

_________ lines are ridges and channels that are stamped into the panels in order to incorporate additional strength.

A

Control lines

61
Q

__-_______ is reserved for shrunken and collapsed buckles and for welds.

A

On-dollying

62
Q

The flatter the panel, the ______ the shrink used.

A

Smaller

63
Q

Do not break the back of the gouge by _______ it to the surface; keep it low.

A

Raising

64
Q

The outer panels of a vehicle can be classified as one of three types; _____ crowned, ______ crowned or ________ crowned.

A

Single

Double

Combination

65
Q

There are two methods to use with your hammer when shrinking.

1.

2.

A

Hammer around the hot spot

Hammer on the hot spot

66
Q

The buckle that is the most severe and in the crowned area is roughed out or unrolled ______.

A

First

67
Q

When using a grinder, hold the grinder so that _ 1/2” to _” of the disc touch the metal surface.

A

1 1/2” to 2”

68
Q

95% of all problems related to polyester filler are caused by ____-________.

A

Over-catalyzation

69
Q

The more pressing required when shaping the original panel, the _______ it is.

A

Stronger

70
Q

_____________ damage is damage that has no predominate buckle, gouge, scratch or tear.

A

Miscellaneous

71
Q

________ responds very rapidly to on-dolly hammering; however, there is always the danger of overstreching the metal.

A

Aluminum

72
Q

Start filing in the undamaged area on one side and progress accross the damaged metal to the _________ metal on the opposite side.

A

Undamaged

73
Q

Flat, low crowned metal must be _______ more than straightened.

A

Protected

74
Q

When discing to remove file marks and so on, either _______ or ______ can be used.

A

Crosscut

Buffing

75
Q

______ hammer-__-dolly blows are used to thin and flatten damaged areas of metal that are severely folded or buckled.

A

Heavy Hammer-on-dolly

76
Q

When heat shrinking aluminum make certain the heat applied is kept below ___°F (425°C)

A

800°F

77
Q

For shrinking, the most commonly used tool, however, is the oxyacetylene torch with either a #_ or #_ tip.

A

1 or #2

78
Q

________ hammers or ______ hammers should be used for the final shaping and smoothing of the metal.

A

Finishing Hammers

Dinging Hammers

79
Q

On bare metal surfaces, imperfections that cannot be seen can be located by _______ the surface with your hand.

A

Feeling

80
Q

_______ are formed when automotive sheet metal is bent beyond its elastic limit and becomes permanently deformed.

A

Buckles

81
Q

When disking before shrinking the metal, a _______ action is recommended, crossing the area from several directions.

A

crosscut

82
Q

When disk sanding an aluminum panel, use nothing coarser than __ grit.

A

80 grit

83
Q

To use a surform file, hold it at a __° angle and pull it lightly accross the semi-hard filler to rough out the shape.

A

30°

84
Q

Grasp the hammer about _____-________ of the way down the handle from the head.

A

Three-quarters

85
Q

If it is a _____, scratch or ____, it is direct damage, no matter where it is.

A

Gouge, scratch or tear

86
Q

_______ damage makes up the greater part of the average collision damage.

A

Indirect

87
Q

The metal is _______ within a collapsed hinge buckle.

A

shrunk

88
Q

_______ hammering is the operation of releiving stresses and strains in a panel caused by damage in the form of ridges or buckles

A

Spring

89
Q

The _____ or cheese grater file is used to cut the excess filler to contour quickly.

A

Surform

90
Q

Bench grinders are rated by _________ and grinding stone size.

A

Horsepower

91
Q
A
92
Q

The terms _____ and ___ describe how the damage occured while _____ and _______ describe what happened to the steel during the creation of the buckle.

A

Hinge and Roll

Simple and Collapsed

93
Q

As a general rule, for each golf ball sized lump of filler, use a _” bead of cream hardener.

A

1”

94
Q

A hinge is also called a _______.

A

Channel

95
Q

_____ buckles are always located in crowned metal because crowns are what causes them.

A

Roll buckle

96
Q

Never __-_____ any damage in low crowned or flat areas.

A

on-dolly

97
Q

Electric grinders usually operate with speeds upward of ____ RPM.

A

5500 RPM

98
Q

If mixing a baseball size of filler use a _” bead of hardener.

A

6”

99
Q

A ______ buckle is the bending point or pivot point where a crease or channel is formed between relatively undamaged areas of metal.

A

Hinge

100
Q

An oil can in a metal panel indicates a ___ spot.

A

High spot

101
Q

__________ ______ buckles are simply hinge buckles in which the hinging occurs in a boxed or ________ boxed construction instead of flat metal.

A

Collapsed hinge buckles

partially

102
Q

To pull out a crease with a slide hammer, resistance weld a number of pull pins along the length of the crease, approximately _/_” apart.

A

3/4”

103
Q

Apply numerous ____ coats rather than one ____ coat of body filler.

A

Thin coats

Thick coat

104
Q

Pulling out any roll buckle with power equiptment must be done by setting up the pull at __°

A

90°

Autobody Technician Year 3 (4 decks)

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