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CDC 2T370N > Volume 3 > Flashcards

Volume 3 Flashcards

1
Q

The vehicle frame and body are combined together as a unit in a

A

Unitized body.

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2
Q

If you do not have specialized measuring equipment determining frame misalignment, what other method are you using if you transfer checkpoints to a level floor?

A

Plum bob.

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3
Q

What auto body shape has the appearance of a curved surface?

A

Crown.

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4
Q

Lower door panels, hoods, and deck lids are examples of what auto body curved surface characteristic?

A

Low crown.

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5
Q

Why type of auto body curved surface will not spring back once enough force pushes the body surface out of shape?

A

High crown.

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6
Q

The auto body curved surface around the taillights and headlights is usually a

A

Reverse crown.

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7
Q

Which is the heaviest and largest auto body repair hammer?

A

Bumping.

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8
Q

If you are repairing an auto body surface with concave damage, which of the following hammers should you use to repair the area?

A

Crowned face bumping hammer.

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9
Q

What auto body repair hammer do you use for finish work?

A

Dinging.

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10
Q

If you need to repair a panel that is hard to get to, which auto body repair hammer do you use?

A

Dolly block.

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11
Q

How much heavier should a dolly block be than the hammer you are using for a body repair?

A

Three times the weight of the hammer.

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12
Q

What type of dolly block working face do you use if you want minimum mental stretching and minimum lift of the damaged mental surface?

A

Low crown.

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13
Q

What type of dolly block working face do you use if you want increased mental stretching and increased lift of the damaged mental surface?

A

High crown.

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14
Q

When making auto body repairs with a bumping spoon, where do you place the spoon in relationship to the metal surface?

A

Between the metal surface and the hammer.

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15
Q

What type of hammer do you use to strike a bumping spoon?

A

Ball-peen.

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16
Q

Which spoon would you use as a pry tool on a damaged vehicle panel?

A

Body.

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17
Q

The area of auto body metal that serves as a pivot for movement without breaking is called

A

A simple bend.

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18
Q

After you inspect and analyze the body damage, your next step in metal straightening is to perform

A

Bumping.

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19
Q

During your auto body repairs, it is important to lower the raised metal first because it

A

Reduces the chances of stretches and sharp bends of the mental.

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20
Q

The auto body repair process where you release a stretched area with a cross-peen hammer and a specialized dolly is called

A

Cold shrinking.

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21
Q

If two opposite auto body diagonal measurements are not the same, you need to spread the body along the direction of the

A

Shorter diagonal.

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22
Q

What auto body tool do you use to compare distances but not measure them?

A

Trammel.

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23
Q

What could happen to the metal if you apply too much heat to an auto body panel during the welding process?

A

Distortion.

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24
Q

The first of the four steps to removing to removing a fender is to remove the fender bolts from the

A

Hood hinge assembly.

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25
Q

When removing the door skin for inner door repair, what needs to be done directly after removing the door from the vehicle?

A

Place the door in a holding unit.

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26
Q

Collision Estimating Guides List vehicle parts in what order?

A

Front to back, outside to inside.

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27
Q

What type of vehicle construction requires inspection of undamaged areas unrelated to the actual point of impact?

A

Unibody.

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28
Q

When doing a damage report using the Collision Estimating Sequence what would you inspect after the windshield?

A

Cowl and dash.

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29
Q

What precautions should be taken when storing a vehicle outside after performing an accident estimate and awaiting a decision?

A

Prevent additional damage from the elements.

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30
Q

Where would you begin your damage report after the vehicle that was in a minor front-end collision that crumpled the right front fender, the bumper, the suspension, and the grille?

A

Front bumper.

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31
Q

If you want to ensure a damaged mental surface can be properly filled and adhesion will take place, then how many inches beyond the damaged areas should you clean?

A

2.

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32
Q

If you need to order abrasive discs for the circular disc grinder, consult the operators instructions that come with the grinder and then

A

Measure across the disc to see what size you have.

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33
Q

When you need to apply filler to body component, then you will mix what two items?

A

Resin base and a catalyst.

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34
Q

When you apply filler to a metal surface, you use what type of pressure?

A

Firm hand pressure.

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35
Q

When you are preparing a fiberglass panel, how much of the total material thickness should you bevel from both accessible sides of the panel?

A

1/3.

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36
Q

The Society of Automotive Engineers (SAE) recommended practice system of making plastic vehicle parts specifies a series of

A

Letters, 3.0 mm high, placed inside a football-shaped circle, which is molded into the component part.

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37
Q

Which type of plastic softens when heated, hardens as it cools, and can be heated/cooled repeatedly with the same result?

A

Thermoplastics.

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38
Q

Which is the best way to match up the proper plastic welding rod material with the material being repaired?

A

Match the International Organization for Standardization (ISO) symbol.

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39
Q

During plastic welding, what percentage of the base material should the weld penetrate if using a single-V weld?

A

75 percent.

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40
Q

Which composite plastic filler is used for repairing large gasps?

A

Structural.

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41
Q

Paint flexitive additives are usually used in what?

A

Primers and clear coats.

42
Q

What is a disadvantage of low-volatile organic compound (VOC) paints?

A

Equipment requirements.

43
Q

If the pressure switch malfunctions on the electric motor air compressor, excessive air pressure is relieved by the

A

Safety valve.

44
Q

What types of respirators must be fit tested?

A

Any with a tight-fitting seal.

45
Q

How do you control the width of the paint spray pattern on a spray gun?

A

Adjust the control screw.

46
Q

Which type of high-volume low-pressure (HVLP) paint system generates oil free, dry, air and high temperatures?

A

Turbine.

47
Q

Which type of high-volume low-pressure (HVLP) paint system uses standard shop compressed air, and a special orifice to reduce air pressure in the air nozzle?

A

Air conversion unit.

48
Q

Before using a paint stripper to remove paint from a vehicle, you should consult with

A

Environmental or Bioenvironmental Engineering.

49
Q

Which type of sandpaper is used primarily with disc sanders on mental surfaces?

A

Aluminum oxide.

50
Q

Which type of sandpaper is good for use on paint finishes?

A

Silicon carbide.

51
Q

What type of automotive glass is used for windshields on a vehicle?

A

Laminated.

52
Q

If you notice a rainbow or colored spots on a windshield when sunlight strikes it from different angles, the problem is

A

Decomposition of the plastic layer.

53
Q

The plastic layer inside the windshield allows the windshield to bend out of shape after breakage and still provide protection for the

A

Vehicle occupants.

54
Q

What device at the bottom of the door window on a vehicle provides support for raising and lowering the window in the door?

A

Channel.

55
Q

How should you install a channel to the window glass on a vehicle?

A

Force the channel onto the glass.

56
Q

What substance should be used to clean the sheet-metal surface before replacing a body side molding?

A

Isopropyl alcohol.

57
Q

Regardless of the type of door hinge, why procedures is common to replacing both bolted and welded door hinges?

A

Marking/scribing the position of the old hinge.

58
Q

Doors are removed from welded-on hinges by

A

Removing the hinge pins.

59
Q

What item can save much of the labor involved in hinge replacement?

A

Bushings.

60
Q

You should never weld on or near a gas-filled bumper energy-absorbing unit because the unit could

A

Explode.

61
Q

During installation of a seat belt as part of an accident repair, what should you do with respect to a damaged retractor mounting area?

A

Return it to the original shape.

62
Q

What type of vehicle upholstery has minimal padding and sent cover only?

A

Rigid.

63
Q

What usually makes up a rigid seat foundation?

A

Wood or metal.

64
Q

When heat dissipates form the coolant to the atmosphere, then it must have reached which section of the radiator?

A

Tubular core.

65
Q

If it was necessary to use a radiator at a lower height to accommodate a hood design, then which type of radiator would work best?

A

Cross-flow radiator.

66
Q

What radiator core components help radiate heat away from the coolant flowing through the core tube?

A

Fins.

67
Q

What does the second digit of SAE mental identification number indicate?

A

Percentage of predominant alloying agent.

68
Q

As a safety factor, acetylene cylinder valve fittings have

A

Left-handed threads.

69
Q

What should you use to check all fitting joints for leaks on oxyacetylene equipment?

A

Soapy water.

70
Q

What type of threads do the acetylene hose fittings have?

A

Left-handed.

71
Q

When you change an oxyacetylene welding tip to a higher number tip, you increase the

A

Volume of the flame.

72
Q

How large of a diameter should you maintain the molten metal pool in oxyacetylene welding?

A

3/16 to 3/8 inch.

73
Q

What technique of oxyacetylene welding would you use for welding heavy metals that require deep penetration?

A

Weave.

74
Q

When brazing silver what kind of flame is used?

A

Strongly reducing.

75
Q

When a gas is superheated, it then breaks down into tiny molecules with an electrical charge called plasma technically called

A

Ionized gas.

76
Q

If you want to make thicker metal cuts with the plasm cutter, what variable must be adjusted?

A

Increased the amperage.

77
Q

Which component of the plasma torch channels secondary gas or water?

A

Shield cup.

78
Q

What is the minimum air pressure needed at the air connection to operate the plasma cutter?

A

60 psi.

79
Q

What are the two consumables in the plasma cutter torch?

A

Electrode and cutting nozzle.

80
Q

What is meant by the term overpowering the nozzle when using the plasma cutter?

A

Amperage level exceeds the rating.

81
Q

How long do you purge plasma gas from the lines after a part change?

A

2 to 3 minutes.

82
Q

If you are shielded metal arc welding (SMAW) with an internal combustion engine-driven generator welder, what controls the demand of the generator?

A

Governor.

83
Q

To alter the current setting on an alternating current arc welder containing a variable resister, use the

A

Hand wheel.

84
Q

What are the four general welding positions?

A

Flat, horizontal, vertical, and overhead.

85
Q

What should you do prior to applying a fillet weld on a tee joint?

A

Remove the slag from the root bead.

86
Q

What maximum metal thickness can you successfully arc weld without preparing the edges?

A

1/8 inch.

87
Q

What kind of edge preparation would you do for welding if you can prepare both metal plate edges that are 3/4 to 1 inch thick?

A

Double “U.”

88
Q

What characteristic is most noticeable when gas metal arc welding steel parts using 100 percent argon shielding gas?

A

Insufficient penetration.

89
Q

Which gas metal arc welding transfer method will not occur if carbon dioxide is used as the only shielding gas?

A

Spray arc.

90
Q

Excessive stick out can result in the gas metal arc welding discontinuity called

A

Porosity.

91
Q

When gas metal arc welding, excessive penetration can result in

A

Cracking.

92
Q

When using the oxyacetylene torch to cut high-strength, low-alloy materials, how for from the final desired cut line should you stay to prevent weakness in the metal?

A

2 inches.

93
Q

When cutting high-strength, low-alloy steel with an oxyacetylene torch, you should try to limit the torch time to

A

3 minutes.

94
Q

At what angle should the tip of the gas metal arc welded be held at during continuous welding?

A

30 degrees to 45 degrees.

95
Q

What type of current is generally used for gas tungsten arc welding?

A

Alternating current.

96
Q

What gas tungsten arc welding torch component directs the flow of shielding gas onto the weld puddle?

A

Gas nozzle.

97
Q

What quality of the gas tungsten arc welding process cleans off the oxides that form on aluminum?

A

Reverse polarity of the alternating current arc.

98
Q

What contaminate, if left on aluminum, will cause poor mechanical and electrical qualities in a weld?

A

Oil film.

99
Q

If you are going to weld with aluminum, your first step is to remove any oil, grease, and water vapor from the aluminum and then

A

Remove surface oxides with a stainless steel wire brush or strong alkaline acid.

100
Q

If you need to repair a panel that is hard to get to, which auto body repair hammer do you use?

A

Pick.

CDC 2T370N (3 decks)

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