Collision Blast - Preparation

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    Proper prepping a car is one of the most important steps to performing a professional hi-quality paint job.

    • True
    • False
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Collision Blast - Preparation - Quiz
About This Quiz

This quiz is over module 7 Preparation. I would like to stress the importance of preparation in order to produce a quality paint job. This is perhaps the most important module for producing stellar results.

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  • 2. 

    To produce a professional quality paint job, a painter must purchase the most expensive spray gun available on the market.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    High quality spray guns help make the job easier, but when it come to paint, preparation is the most important.

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  • 3. 

    Feather edging is the process of transitioning the repair area, body filler, metal, and coatings to a smooth surface.   This is the process of layering each coating so the build-up of coatings are less noticeable.  

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Yes, feather edging is layer each layer of coating to provide a less noticeable surface. Primer surfacer is used to apply and block sand to produce a level surface with no rings of layered paint.

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  • 4. 

    You should mask to the edge of jambs when spraying primer.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Mask to the edge of jambs when priming to prevent primer from getting into the jamb areas. When painting mask back from the edge to allow paint to wrap around the corner.

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  • 5. 

    Properly cleaning the paint surface before beginning repairs may eliminate fish eyes when spraying and use less sandpaper when sanding.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Silicone from waxes cause fisheyes and clog sandpaper faster.

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  • 6. 

    It may be necessary to lay plastic over the entire car when priming a repair area.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    It only takes a minute to cover the car with plastic. If you think there is a chance of getting overspray on the undamaged adjacent panels and parts, go ahead and drop plastic over the car.

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  • 7. 

    It's late Friday night, you're painting a car and now it is ready to clear coat.  However, you forgot to look earlier in the day and now you discover that you do not have the catalyst for the clear coat.  All of the stores are closed and you are going out of town for the weekend.  After reading the technical data sheet, you see that the paint should flash for at least 30 minutes before applying clear coat, but no longer than 24 hours.  This is a 24 hour window, which is the time that there is chemical adhesion.  However, the window will pass by Monday morning.....what are you going do?

    • Just go ahead and spray the clear Monday morning and hope it doesn't peel.

    • Find any type of catalyst in the shop and get it sprayed tonight. All catalyst are the same thing.

    • Lightly scuff the paint Monday morning to provide a mechanical adhesion, spray another coat of paint and then clear coat the car.

    • Give the car back to the customer Monday morning without clear coat. He will never know!

    Correct Answer
    A. Lightly scuff the paint Monday morning to provide a mechanical adhesion, spray another coat of paint and then clear coat the car.
    Explanation
    If you loose the chemical adhesion, then you must provide mechanical adhesion by scuffing. Next, spray another coat of base coat to assure even coverage and then apply clear coat.

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  • 8. 

    Primer surfacer should be sprayed over epoxy primer for it's filling properties.  This type of primer is thick, fill scratches, and sands well.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Epoxy primer does not fill or sand well. Epoxy is used for corrosion protection. Primer surfacer is used to fill scratches and sands well.

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  • 9. 

    Masking for primer is less important than masking for paint.  It's easier to clean moldings and glass that may have had a little primer overspray on them than to waste time masking.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    2K primers are very difficult to remove from moldings and trim. It is equally important to do a good mask job when priming or painting.

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  • 10. 

    If it's a rush job and the customer is going to be there to pick the car up today at 5PM, it's alright to skip or rush through the prep work in order to have the car ready for the customer as promised.  The customer will always overlook imperfections, if he or she get their car on time.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Most customer will overlook a deadline, if you let them know in advance. However, if the car is not to their satisfactory, they will tell everyone they know about it for years to come.

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  • 11. 

    A painter needs to spend more time perfecting his/her prep skills than time spent perfecting their spraying skills.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Spraying skills are important, but prep is the most important step.

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  • 12. 

    When sanding a new OEM panel, you should final sand the panel, but try to leave most of the e-coat on the panel.   

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Yes, most of the guide coat should be lefton the panel. E-coat provides superior corrosion protection.

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  • 13. 

    Flash time is:

    • How fast the painter sprays.

    • How long it take the paint to cure.

    • The time needed to wait between coats.

    • There is no search term as flash time in auto body.

    Correct Answer
    A. The time needed to wait between coats.
  • 14. 

    What is the purpose of sanding a painted surface when preparing it for paint?

    • To provide a smooth surface for the paint.

    • To rough up the surface for paint.

    • To clean the surface for paint.

    • It is not necessary to sand if the paint is in good condition.

    Correct Answer
    A. To rough up the surface for paint.
    Explanation
    The purpose of sanding is to rough the surface to provide mechanical adhesion.

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  • 15. 

    Using a block to block sand primer surfacer is not necessary, just hand sand the primer.  That will work just as good.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The purpose of block sanding primer surfacer is to level and identify lows. Sanding with the palm of your hand will not achieve this.

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  • 16. 

    Technician A says that featheredging should be done before priming.   Technician B says that featheredging should be done after priming. Who is correct?

    • Technician A only

    • Technician B only

    • Both Technician A and Technician B

    • Neither Technician A or B

    Correct Answer
    A. Technician A only
    Explanation
    Feather edging should be performed before priming. Blocking the primer will help level and prevent the feather edge area from showing up after painting.

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  • 17. 

     "Foam Tape" the foam tape is used to mask:  

    • Glass

    • Door handles

    • Jamb openings

    • Custom stripes

    Correct Answer
    A. Jamb openings
    Explanation
    Foam tape is used for making a soft edge when masking jamb openings.

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  • 18. 

    It may be possible to prime a small repair without masking.  

    • True

    • False

    Correct Answer
    A. True
    Explanation
    If the dent is in the center of a panel, it is possible to adjust the spray gun to spray a small patter with low overspray.

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  • 19. 

    What color of 3m Scotch-brite scuff pad should be used for scuffing edges and hard to reach areas extra good, when the entire panel is being painted?

    • Red

    • Gray

    • Yellow

    Correct Answer
    A. Red
    Explanation
    Red is used where base coat will be applied. Gray is used if only clear coat is going to be applied to the surface.

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  • 20. 

    What type of paint problem may appear after the surface has been painted and clear coated, if the car was not properly featheredged?

    • Rings.

    • Adhesion failure.

    • Mis-match color.

    • You do not need to featheredge if you prime and block sand.

    Correct Answer
    A. Rings.
    Explanation
    If not properly featheredged, rings from the layers of paint may show up after painted.

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  • 21. 

    Using a 6" Dual Action (DA) sander,  _____grit sandpaper is the best selection below to use for feather the edges.

    • 80 grit

    • 500 grit

    • 800 grit

    • 220 grit

    Correct Answer
    A. 220 grit
    Explanation
    220 grit can be used for feather edging. 500 grit is used for final sanding for base coat. 800 grit is used for final sanding for clear coat.

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  • 22. 

    It is recommended to feather or layer each coating at least _____.

    • 1 inch.

    • 3/4 inch.

    • 1/4 inch.

    • 1 1/2 inches.

    Correct Answer
    A. 1/4 inch.
    Explanation
    Each layer of paint should be feathered at least 1/4 of an inch to eliminate rings from appearing after the part has been painted.

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  • 23. 

    Transitional tape and back masking are two methods that can be used for masking jamb openings.
          

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Transitional tape, foam, and back masking can be used on jamb openings.

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  • 24. 

    A repair area is ready for epoxy primer.  For the best result, the painter should:

    • Primer the entire panel with epoxy primer.

    • Only prime the repair and bare metal areas. There is no benefit to priming the entire fender and is a waste of primer.

    • Spray what ever is not masked off. By spraying all the way to the tape edges of the masking tape, will assure proper coverage.

    Correct Answer
    A. Only prime the repair and bare metal areas. There is no benefit to priming the entire fender and is a waste of primer.
    Explanation
    Epoxy is only needed for bare metal. There is no benefit to priming undamaged areas where no bare metal is present.

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  • 25. 

     It is not necessary to sand the epoxy primer before spraying the primer surfacer if sprayed within the recommended window time.  

    • True

    • False

    Correct Answer
    A. True
    Explanation
    According to the technical data sheet for the epoxy primer, the epoxy has a 72 hour window. This means that there is a chemical adhesion window. After 72 hours, the primer will loose it's chemical adhesion and must be sanded to provide mechanical adhesion.

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  • 26. 

    Guide coat is used to identify highs and lows throughout the body filler and primer stages when block sanding.  Guide coat may come as:

    • Dry powder

    • Spray can

    • Both forms

    • Neither forms

    Correct Answer
    A. Both forms
    Explanation
    Guide coat comes is spray and/or dry form.

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  • 27. 

    Special attention should be taken when mixing epoxy because:  

    • It may have a strange reaction.

    • It may have an induction time.

    • It has an extremely short window.

    • It's just another type of primer, no special attention needed.

    Correct Answer
    A. It may have an induction time.
    Explanation
    Some epoxy primers have an induction time. This is a determined time that the chemicals must be mixed together before using.

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  • 28. 

    What is the purpose of spraying epoxy primer?

    • Adhesion

    • Corrosion Protection

    • Adhesion and Corrosion Protection

    • Adhesion, Corrosion Protection, and Filling

    Correct Answer
    A. Adhesion and Corrosion Protection
    Explanation
    The two main purposes of epoxy primer is adhesion and corrosion protection.

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  • 29. 

    When painting an entire panel, sand the surface with ______ on a DA sander with an interface pad or by hand sanding.

    • 150 - 300 grit

    • 220 grit

    • 400 - 600 grit

    • 800 - 1000 grit

    Correct Answer
    A. 400 - 600 grit
    Explanation
    When final sanding a panel to apply base coat, 400 to 500 grit sandpaper should be used. 800 to 1000 grit is used if only applying clear coat.

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  • 30. 

    When preparing a blend-within a panel or a blend panel, what grit of sandpaper should be used where only clear coat will be applied? (no color)

    • 150 - 300 grit

    • 320 grit

    • 400 - 500 grit

    • 800 - 1000 grit

    Correct Answer
    A. 800 - 1000 grit
    Explanation
    800 grit or finer should be used where only clear coat will be applied. You may see the scratched through the clear if any coarser sandpaper is used to sand the surface.

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  • 31. 

    When preparing to primer, you should mask the area that has been repaired by taping a square off around the damaged area.  This will prevent primer overspray from getting on the adjacent panels.  

    • True

    • False

    Correct Answer
    A. False
    Explanation
    That will leave hard edges. Try back masking or moving your masking paper away from the damaged area. You do not want to prime all the way to the masking edge.

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Quiz Review Timeline (Updated): +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 23, 2011
    Quiz Created by
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