CR101B Introduction to Collision Repair
The process being done in the photo above is: (car on lift with hanging measuring devices)
measuring a vehicle using a three-dimensional system.
The fibers in a fiber-reinforced part are primarily used:
to provide strength
What is the maximum amount of clearcoat that can be removed from an OEM finish when correcting a surface defect?
0.5 mil
Technician A says that a film thickness gauge may be used to locate body filler.Technician B says that paint film is usually thicker on vertical panels than on horizontal panels.Who is right?
A only
Information on cleaning a hazardous material spill can be found in what section of an SDS?
Accidental Release Measures
What is the purpose of a wheel alignment?
Allow the vehicle to travel straight
Which of these is designed to protect the vehicle from sparks? A) plastic sheet for seats B) Welding blanket C) Paint tape D) Masking plastic sheet
B
Technician A says that a cold knife is pneumatic.Technician B says that a wire tool can be used for removing some trim.Who is right?
B only
Technician A says that the unitized structure of a hybrid vehicle is considerably different when compared to the same conventional model. Technician B says that hybrid vehicles have 12-volt and high voltage batteries. Who is right?
B only
Which of these should be used if car wash soap does not remove acid rain spotting?
Baking soda solution
Which of these is true about removing a stain in carpet?
Blot the stain with a detailing cloth.
A hand wet sanding process requires three progressively finer grits of sandpaper. Technician A says to cross the first two grits diagonally.Technician B says to sand along body lines with the finest grit. Who is right?
Both A and B
Technician A says that a rotary buffer should not exceed 2000 rpm while buffing.Technician B says that a rotary buffer should be started while resting on the panel.Who is right?
Both A and B
Which of these sheathing colors is commonly used to designate high voltage wiring?
Bright orange
Which of these is used as the filler material with GMA (MIG) welding?
Electrode wire
Which of these best describes the flow of the collision repair process?
Estimating, structural repair, non-structural repair, refinishing, detailing, quality control, delivery
Which of these safety items is missing on the technician in the photo below? (Using angle grinder)
Full-face shield
Which of these should be worn when using a half- mask supplied-air respirator during refinishing?
Goggles
Which of these is required on a workplace label?
Hazard warnings
Which of these tools may be used to determine if a defect is embedded into the finish?
Magnifier
Which of these damage conditions is illustrated above? (Bend in frame rail)
Mash
Technician A says that degreaser can be used to clean seat belts.Technician B says that a petroleum solvent can be used to clean seat belts.Who is right?
Neither A nor B
Which of these can be used to do a wheelbase quick check?
String
Which of these is proper when washing a vehicle?
Use two buckets, one with soapy water.
The additional corrosion protection used on the interior of repaired parts includes:
a wax-based coating.
When cleaning clearcoated wheels:
all-purpose cleaner may work.
Knowledge of the pH scale is useful for determining whether to use:
all-purpose cleaner or a vinegar solution.
If a container does not have a label, a technician should:
avoid handling material until identified.
A Class B fire extinguisher could be used on a:
burning solvent.
Electronic ferrous film thickness gauges:
can read in tenths of one mil.
A portion of the claim that must be paid for by the policy holder is known as a (an):
deductible.
All of these are necessary for a complete circuit EXCEPT a:
fuse
A clay bar used for detailing:
is not effective on a porous surface.
All of these are true about aluminum EXCEPT that it:
is resistant to galvanic corrosion
To remove rail dust:
rub using a clay bar.
When treating an odor:
start by removing the source.
Tensile strength is the amount of force necessary to:
tear a piece of steel apart.
All of these are true about GMA (MIG) welding EXCEPT that:
the welding gun liner regulates the shielding gas.
All of these are true about carbon fiber parts EXCEPT that:
they are a combination of fiberglass and carbon fibers.
All of these may be included on a care tip sheet given to the customer EXCEPT:
use clay to remove embedded rail dust.
Two-part adhesives cure:
when mixed together.
Which of these should be used to clean a tail lamp lens?
Clear plastic cleaner
Which of these warnings is shown in the symbol below?
Flammable
Technician A says that powdered soap may be used to wash a vehicle.Technician B says that when rinsing a vehicle after washing, the water should bead on the surface.Who is right?
Neither A nor B
Which of these is a safety issue when doing the process shown in the photo below? (Spot welding)
Sparking from the welding process
Which of these speeds should never be exceeded when using a rotary buffer?
2,000 rpm
To help identify collision energy management functions, a vehicle structure is divided into how many main sections?
3
Waxes and sealants:
form a thin barrier coating.
Thermoplastic parts are:
formed by forcing a molten solution into a mold.
All of these are true about steel EXCEPT that:
heat tends to strengthen high-strength steel.
The reason a safety cable is used on a pulling chain is to:
help reduce backlash if the chain comes loose.
After washing a vehicle with car wash soap, rinse using a:
hose without the nozzle attached.
A technician has confirmed that spots on the surface are caused by acid rain. When treating acid rain, it is necessary to:
neutralize the acid.
All of these are types of wheel alignments EXCEPT:
steering angle.
Which of these is true about machine buffing?
switch pads when changing material.
After removing a defect from a vehicle that has just been refinished, generally how much clearcoat or single-stage topcoat should remain?
1 mil
Which of these is the maximum amount of topcoat that can be removed when correcting a defect in an original finish?
1/2 mil
A label on a spray bottle of a known solution has washed off.Technician A says that the label information or label must be replaced as soon as possible. Technician B says that the solution must be replaced as soon as possible.Who is right?
A only
Technician A says that a heat gun may be used to remove emblems.Technician B says that a mixing board is used for mixing paint.Who is right?
A only
Which of these safety items is recommended when doing the process shown in the photo below? (Using a hammer & dolly)
Safety glasses
Which of these caused the damage shown in the photo above? (metal with clamp marks in it)
Anchoring clamp
Technician A says that a magnifier may be able to determine if a defect has etched into the surface.Technician B says that a magnifier may be able to determine the depth of a scratch. Who is right?
Both A and B
Technician A says that a steering column may be designed to absorb energy. Technician B says that vehicle seats may be designed to absorb energy. Who is right?
Both A and B
Technician A says that an A-pillar may be designed to transfer collision energy. Technician B says that a floor pan reinforcement may be designed to transfer collision energy.
Both A and B
Which of these methods is the recommended first step to remove most overspray?
Clay
Which of these is true about cleaning a vinyl convertible top?
Do not clean just one spot.
Technician A says that all-purpose cleaners are recommended for use on leather.Technician B says that all-purpose cleaners are recommended for use as a general car wash soap.Who is right?
Neither A nor B
Which of these processes uses a die and a press to form parts?
Stamping
Why are a type of lineman's gloves recommended when working with high voltage parts?
They are electrically insulated.
Which of these refinishing defects might be able to be removed through the detailing process?
Too much orange peel
What repair task is the technician doing in the photo above? (tech w/wrench on lug nuts)
Torqueing lug nuts
Three-dimensional measuring references all of these EXCEPT:
radius.
All of these are designed to absorb collision energy EXCEPT:
reinforcements.
All of these are stages of the spot weld process EXCEPT:
release time.
All of these are other names for an estimate EXCEPT:
repair order.
When shampooing fabric carpets and seats:
test a hidden area to make sure the color will not bleed.
The imaginary plane shown in red in the illustration above is used to measure: (through center of vehicle - front to rear)
width
Which of these may be removed with detailing?
Orange peel in the clearcoat
Which of these is the most aggressive material used for detailing?
P800 grit sandpaper
Hepatitis B is considered:
a blood borne pathogen.
The welded joint shown in the illustration above is: (two pieces joined together w/backing)
a butt joint with backing.
The appearance of clearcoat degradation is:
a dull finish.
The process being shown in the photo above is: (body filler)
applying body filler.
Technician A says that a vinegar-based cleaner can be used for cleaning glass with aftermarket window tinting.Technician B says that an ammonia-based cleaner can be used for cleaning glass with aftermarket window tinting.Who is right?
A only
Technician A says that ordered parts should be at the repair facility and inspected before repairs are begun. Technician B says that repairs may begin once all supplemental damage has been identified. Who is right?
A only
Technician A says that shielding gas nozzles may have different shapes.Technician B says that the shielding gas nozzle is attached to the shielding gas cylinder.Who is right?
A only
Technician A says that some film thickness gauges work on aluminum. Technician B says that some film thickness gauges work on plastic. Who is right?
A only
Technician A says that tailor-rolled parts may be used for collision energy management. Technician B says that tailor-welded parts are aluminum and steel parts joined together. Who is right?
A only
Technician A says that the B-pillars aid in resisting roof crush. Technician B says that the IIHS rates vehicles to resist roof crush to five times the weight of the vehicle. Who is right?
A only
There is evidence of rail dust on a lower quarter panel. Technician A says that clay might be able to remove the rail dust. Technician B says that sanding and buffing might remove the rail dust. Who is right?
A only
Working with which of these systems requires a technician that has been certified in an EPA-approved course?
Air conditioning
Which of these is the ingredient in glass cleaner that may damage applied window tinting?
Ammonia
An inspection of a newly refinished surface is being performed by the detailing technician while the vehicle is in the spraybooth.Technician A says that this is beneficial so that color sanding can be performed before the vehicle leaves the spraybooth.Technician B says that this is beneficial to allow the refinish technician to apply more clearcoat to an area that may need sanding and buffing.Who is right?
B only
Technician A says that a magnetic film thickness gauge is effective for monitoring film thickness when detailing.Technician B says that a digital film thickness gauge is effective for monitoring film thickness when detailing.Who is right?
B only
Technician A says that acid rain does the most harm when it first falls on a finish.Technician B says that hard water spotting is usually just a surface problem that can be washed off.Who is right?
B only
Technician A says that employers are allowed to remove information from an SDS for use in the work place. Technician B says that employers should retain an SDS for 30 years after the product is no longer used. Who is right?
B only
Technician A says that it is good practice to store removed parts of the vehicle in the back seat. Technician B says that windows and doors should be kept closed, if possible, during the repair process. Who is right?
B only
Technician A says that most carpet stains are alkaline.Technician B says that to remove a stain, blot with a clean cloth.Who is right?
B only
Technician A says that wax is used to remove swirl marks.Technician B says that wax may be considered a sacrificial coating.Who is right?
B only
Technician A says that a synthetic chamois may be used to dry a vehicle.Technician B says that a cotton terry towel may be used to dry a vehicle.Who is right?
Both A and B
Technician A says that information obtained from a customer consultation may include which seat belts were in use during the collision.Technician B says that information obtained from a customer consultation may include identifying what the vehicle collided with.Who is right?
Both A and B
Technician A says that one function of a damage report is to help prevent misunderstandings between the repairer and customer.Technician B says that one function of a damage report is to document authorization to repair the vehicle.Who is right?
Both A and B
Technician A says that to remove a scratch, level the surrounding finish to the depth of the scratch.Technician B says that swirl marks are scratches caused by buffing.Who is right?
Both A and B
Technician A says that welding machine cables should be routed away from electronic sensors. Technician B says that 12-volt batteries can release explosive gases. Who is right?
Both A and B
Technician A says that windshield adhesive applicator guns may be pneumatic.Technician B says that windshield adhesive applicator guns may be electric.Who is right?
Both A and B
Technician A says that wool pads are more aggressive than foam pads.Technician B says that it is more difficult to avoid swirl marks with a wool pad than with a foam pad.Who is right?
Both A and B
What repair step is the technician doing in the photo above? (tech holding weight over seat)
Calibrating the occupant classification system
Which of these is the best option for removing overspray from an aluminum molding?
Clay
What is the repair step being done by the technician in the photo above? (technician holding front windshield)
Dry setting the glass
Which of these could occur if too much clearcoat is removed during detailing?
Hazing
Which of these is true about airbag charts?
Lists mandatory part replacement guidelines
What is shown in the wire circled above? (Severed wire)
Open
Which of these is recommended for removing decals and stickers from glass?
Plastic razor blade
Which of these processes is being done in the photo above? (w/round end plastic welding)
Plastic welding
Which of these warnings is shown in the symbol below?
Poison
Which of these safety items is missing on the technician in the photo below? (Wiping a car down with something)
Protective gloves
Which of these is a condition where the vehicle favors going to one side of the road versus the other?
Pull
Which of these can occur while welding on a panel that has a catalyzed clearcoat finish?
Release of isocyanate vapors
The acronym R&R refers to:
Remove and replace
Which of these is true about conditioners and dressings?
They should be applied to weatherstripping.
Which of these should be used to keep the area wet when hand wet sanding?
Using a hose or spray bottle
Which of these is done to a tire if it is out of balance?
Weights are added to the rim
Which of these safety equipment items avoids flash burn when observing the task shown in the photo below? (welding)
Welding helmet
Forcing a solid piece of heated aluminum through a die forms:
an extruded part
All of these are true about blind rivets EXCEPT that they:
can be self-piercing.
A flammable material:
can easily catch fire and burn rapidly or explosively.
Olfactory fatigue is when a person:
can no longer smell a chemical after exposure.
A carcinogen is a substance that causes:
cancer
All steels are alloys that contain a combination of iron and:
carbon.
A supplement is a:
change to the damage report.
When shampooing carpet:
clean the surface, not the backing.
All of these may be limitations for using spot welding EXCEPT:
electrode wire size.
Partial teardown is done for the estimating process to:
find any hidden damage.
When cleaning a fabric headliner:
gently wet-wipe in one direction.
To help control the thickness of the adhesive in a joint, adhesives may contain:
glass beads.
The purpose of a malfunction indicator lamp (MIL) is to:
indicate which system is not working properly.
All of these are true about a magnesium part EXCEPT that it
is typically made from stampings
All of these are stages in the adhesive bonding process EXCEPT:
mix time.
To complete an attachment, bolts can be tightened onto a part with a:
nut.
The technician in the photo above is marking: (yellow marker line on rail)
the cut location on the damaged rail.
