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Autobody Technician Year 4 > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

Although pulling equipment comes in a variety of shapes and styles, it all has just one function: to apply a _______ force to correct collision damage.

A

Controlled

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2
Q

When heating the damaged area on the side with the buckle, heat the buckled area. On the opposite side of the buckle: heat an area that is approximately ____ to ____ times the size of the buckled area.

A

Five

Seven

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3
Q

____ body sectioning is the most severe or extensive form of reworking the passenger compartment.

A

Full body

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4
Q

The pulling forces must never be ______ than the combined anchoring force.

A

Larger

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5
Q

When doing a butt joint with insert the width of the gap depends on the thickness of metal, but ideally it should not be less then 1/__” or more than 1/_”.

A

1/16”

1/8”

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6
Q

Make the first pull a _______ pull.

A

Multiple

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7
Q

_________ cuts across most of the major load bearing paths in a car.

A

Clipping

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8
Q

A-pillars should be sectioned near the _______.

A

Middle

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9
Q

Cold stress relieving involves the use of ______ hammering.

A

Spring

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10
Q

Most unibody repairs demand ________ pulls at once.

A

Multiple

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11
Q

Once primers are opened they only have a shelf life of about _ week

A

1 week

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12
Q

Prepare the roof panel assembly and vehicle body with offset butt joints at the _-pillars, butt joint with insert or combination butt with lap joint at the _-pillar and offset lap joints at the _-pillars.

A

A pillar
B pillar
C pillar

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13
Q

A _______ gauge attached to your pulling equipment can be very useful in monitoring the pulling process.

A

pressure

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14
Q

A BOF vehicle can usually be straightened and realigned with a series of ______-_______ pulls.

A

Single-direction

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15
Q

A high speed ________ wheel can be used to seperate spot welded panels. Use this technique when the weld is not visible with a drill.

A

Grinding

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16
Q

Use the ____ saw type of cutter when the replacement panel is on top.

A

Hole saw type

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17
Q

Make the pulls a _____ at a time, _____ the stress, always take a __________.

A

Little
Relieve
Measurements

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18
Q

Stress relieving is necessary to help control _________.

A

Springback

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19
Q

You will deal with 3 general types of primary structural components
1
2
3

A

Closed sections
Hat channels
Single-layer flat components

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20
Q

Multiple or multi-directional pulls are used to repair _____ vehicles.

A

Unibody

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21
Q

You need to realign the grain of the metal to what it was before the collision. This is called _____ relieving.

A

Stress

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22
Q

All continuous welds must be made in increments of 13 mm to 19 mm (1/2” to 3/4”) maximum. This is known as _____ welding.

A

Stitch

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23
Q

An example of a bench system is the _______.

A

Celette

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24
Q

The MVSS states that when a vehicle with no passenger air bags is involved in a frontal collision of 48 km/hr, __ % of the front windshield be retained in the body opening. For vehicles with airbags no less than __% be retained.

A

75%

50%

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25
Q

_____ hardness is the firmness of a material or its ability to flex.

A

Shore hardness

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26
Q

Ensure the ___ level is topped up before using the pump.

A

Oil

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27
Q

The most effective way to perform the pull procedure is to approach the operation as though it is done with your ____ hands.

A

Bare

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28
Q

Use a ___ grinder when the weld is not accessible or if removing an existing MIG weld.

A

Die Grinder

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29
Q

Glass is considered structural if it is installed with polyurethane _______.

A

Adhesive

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30
Q

Follow a _______ plan to correct collision damage.

A

Repair

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31
Q

When sectioning a floor pan, whenever possible section on top of a _____ member.

A

Cross member

32
Q

Ensure couplers are ______ to each other and never force couplers to mate to each other.

A

Matched

33
Q

There are two types of anchoring systems for unibodies,
1.
2.

A

Pinch weld clamps

Mechanical or suspension mounts

34
Q

Installation temperatures should not be less than _ C

A

4 C

35
Q

When sectioning, the three basic types of weld joints recommended are the:
1
2
3

A

Butt joint with insert
Offset butt
Lap joint

36
Q

The two types of cutting bits are
1
2

A

Drill type

Hole saw type

37
Q

_______-pull systems allow the hold and pull or bi-directional pull capability that is often required in correcting secondary damage in unibody vehicles.

A

Secondary-pull

38
Q

The damage correction sequence is
1.
2.
3.

A

Length
Width
Height

39
Q

What is the grade of chain typically used for pulling chains?

A

Grade 80 Alloy

40
Q

Sectioning refers to the procedure of panel replacement at somewhere other than a _______ joint.

A

Factory

41
Q

Floor systems are among the most popular systems. An example of a floor system is the ______ ____ system.

A

Wedge Clamp

42
Q

If there are no known manufacturer procedures for sectioning, replace the component at _______ seams.

A

Factory

43
Q

Rack systems were heavily favored in the past and can still be found in many shops. An example of a rack system is the _____ or ___-_-____.

A

Chief

Car-O-Liner

44
Q

DOT Department of ___________.

A

Transportation

45
Q

Under no circumstances, can the pulling force exceed the ________ force.

A

Anchoring

46
Q

The three main types of pumps used in straightening equipment are:
1.
2.
3.

A

Manual Hand Pumps
Electric over hydraulic
Air over hydraulic

47
Q

___ primer is necessary for the adhesion of polyurethane to some plastic or rubber materials .

A

PVC Primer

48
Q

Some manufacturers recommend that __ to __% of the vehicle weight be left on the wheels when the vehicle is anchored.

A

40 to 60%

49
Q

The ____ hugger is the fastest means of making an anchor on vehicles with large holes in the bottom of the frame.

A

Hole Hugger

50
Q

The damage that occurred last during the accident should be corrected _____.

A

First

51
Q

At least ____ anchors are required for unibody vehicles.

A

Four

52
Q

Metals consists of a structure of building blocks called _____.

A

Grains

53
Q

Glass manufacturers place their logo and other identifying information on the _______ of the glass.

A

Bottom

54
Q

The black band around the windshield is known as the ___.

A

Frit

55
Q

Use a ______ bit type of cutter when the replacement panel is on top, when the panel is thick, where nuggets are large and where the weld shape is destroyed.

A

Large drill

56
Q

The MVSS are standards for ________ and their ability to bond.

A

Adhesion

57
Q

In unibody repair your have a two-fold job: to return your vehicle to its pre-accident ____ and to its pre-accident ____.

A

Shape

State

58
Q

Welding should be performed with a MIG welder equipped with 0.mm (0.023”) diameter wire that meets American Welding Society Standard AWS-E-70S-

A

0.6

AWS-E-70S-6

59
Q

Leave a _mm thick layer of urethane on the pinch weld.

A

2mm

60
Q

Before any upper body structure is straightened, the ________ dimensions for length, width and height must first be corrected.

A

underbody

61
Q

The overall pulling sequences should be ___-_____.

A

Pre-planned

62
Q

Pinch weld clamps should be placed on the _____ panels to ensure they are in the torque box area.

A

Rocker

63
Q

The two types of couplers are
1.
2.

A

Threaded and screw type

Quick connect

64
Q

Do not grind into the steel panel and do not heat the panel so that it turns ____ or begins to warp.

A

Blue

65
Q

An insert should be _____ the width of the cross section.

A

twice

66
Q

_____ dimensions are always established first.

A

Length

67
Q

Hydraulic rams are classified by their ______ and the capacity they are pushing, pulling or spreading.

A

Length

68
Q

Floor pans use an _______ joint when sectioning. Lap the section over the panel at least _”

A

Overlap Joint

2”

69
Q

Use a _____ drill bit type of cutter when the replacement panel is between other panels and welding cannot be accomplished from the backside.

A

Small type

70
Q

Most frame equipment manufacturers have designed universal __-___ systems to aid in tying down BOF vehicles.

A

Tie-down

71
Q

Depending upon the make and model, the rocker panels will be either _ or _ layers

A

2 or 3

72
Q

Stress relieving must be done periodically during the pull. Pull, ____ relieve, measure and ___ again.

A

Stress

Pull

73
Q

Adhesives usually have a shelf life of _ months

A

6 months

74
Q

A _____-pull system is capable of making a single, very directional pull on the damaged area of the vehicle. These systems are effective on ____-type vehicles.

A

Single-pull

BOF

75
Q

Always make your first ____ before trimming away the damaged metal.

A

Pulls

76
Q

Often _______ must be used in conjunction with anchors to make them work properly.

A

Blocking

Autobody Technician Year 4 (4 decks)

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