Question 1

Technician A says that the first step for refinishing preparation is to chemically clean the surface to be refinished. Technician B says that the first step for refinish preparation is soap and water wash. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Accepted Answer

The first step in refinishing preparation is typically to wash the surface with soap and water to remove any surface contaminants before proceeding with more specific preparation steps like chemical cleaning.

Question 2

Block sanding is done to ____________________ the high spots on an uneven surface.

Accepted Answer

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Question 3

Technician A says that 40-grit sandpaper is the best to use when stripping old finish from aluminum hoods. Technician B says chemical stripping is best used when the entire finish must be removed down to the substrate. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Accepted Answer

Chemical stripping is the most efficient way to remove the entire finish down to the substrate, especially on surfaces with complex geometries, as it can reach every corner and crevice. Using 40-grit sandpaper could leave scratches and damage the aluminum hood, which may require additional work to repair.

Question 4

Lacquer finish cures through oxidation.

Accepted Answer

Lacquer finish cures through the evaporation of its solvent, not through oxidation.

Question 5

Technician A says that guide coat helps a technician identify imperfections. Technician B says that guide coat helps level the surface during paint preparation. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Accepted Answer

Guide coat is used to identify imperfections such as low spots or scratches during the sanding process, not to level the surface.

Question 6

Aluminum should never be sanded with an abrasive grade more aggressive than _______________ grit.

Accepted Answer

The answer of Aluminum should never be sanded with an...

Question 7

Block sanding should never be done wet.

Accepted Answer

Block sanding can be done wet to reduce dust and help achieve a smoother finish. Wet sanding is often used in auto body work and woodworking for finer, more controlled surface preparation.

Question 8

A technician will be mixing soap and water for cleaning a vehicle. The soap diluted 1 part soap to 50 parts water. The amount of water in the bucket is 4 gallons. How much soap should the technician put in the water?

Accepted Answer

The answer of A technician will be mixing soap and...

Question 9

Technician A says that preparing an aluminum substrate is done using the same steps and materials used for a steel substrate. Technician B says a solvent test can be used to determine if the existing finish is a lacquer or another more durable finish. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Accepted Answer

Technician B is correct because a solvent test is indeed a method used to determine the type of finish on a surface, distinguishing between lacquer and more durable finishes. Technician A is incorrect because aluminum substrates require different preparation steps and materials compared to steel substrates, due to differences in properties like corrosion resistance and surface texture.

Question 10

Technician A says that adhesion promoter is a coating that helps topcoat stick to OEM paint. Technician B says that adhesion promoter is used on certain types of plastic. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Accepted Answer

The answer of Technician A says that adhesion promoter is...

Question 11

Not all primers provide corrosion protection.

Accepted Answer

While some primers do provide corrosion protection, not all of them do. It is important to choose a primer that specifically includes corrosion protection if that is a concern for the project at hand.

Question 12

Technician A says that each vehicle will have a slightly different refinish plan. Technician B says the cleaner the vehicle before the painting is initiated the less likely of having dirt in the newly applied finish. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Accepted Answer

Both technicians are correct. Each vehicle will have a different refinish plan depending on its condition, and starting with a cleaner vehicle will result in a higher chance of a clean finish with no dirt particles.

Question 13

Blocking is used to remove the shine from a paint surface before refinishing.

Accepted Answer

Blocking refers to the process of sanding or smoothing a surface to ensure evenness, not specifically to remove shine.

Question 14

Technician A says that when using a DA sander, it is not necessary for the technician to wear gloves. Technician B says that a particle mask should be worn when sanding primer filler. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor b

Accepted Answer

Technician B is correct because sanding primer filler can release harmful particles that can be inhaled, so a particle mask should be worn to protect the technician's respiratory system. Technician A is incorrect because wearing gloves can protect the technician's hands from potential injury or irritation from the sander.

Question 15

Plastic is refinished the same way, no matter which type of plastic is used.

Accepted Answer

Different types of plastic have different properties and may require different methods for refinishing.

Question 16

____________________ is done primarily to deglaze the surface.

Accepted Answer

The answer of ____________________ is done primarily to deglaze the...

Question 17

Technician A says that careful feathering and priming reduces the possibility of the repair showing. Technician B says that scuffing and sanding are the same processes. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Accepted Answer

Technician A is correct that feathering and priming can help reduce the visibility of a repair. Technician B is incorrect, as scuffing and sanding are two separate processes; scuffing is a process of lightly roughening the surface for better adhesion, while sanding involves smoothing the surface through the use of abrasives.

Question 18

Technician A says the bare metal should be cleaned with wax and grease remover before applying conversion coating to prevent rust. Technician B says that a steel paint cup should be used with acid etch primer. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Accepted Answer

The answer of Technician A says the bare metal should...

Question 19

Technician A says abrasive discs are available in either an open or closed coat configuration with the closed coat having a tightly packed layer of abrasive on the surface. Technician B says that paint manufacturers have different film thickness limits. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Accepted Answer

Both statements are correct. Abrasive discs do indeed come in open or closed coat configurations, with closed coats having a more densely packed abrasive surface. Additionally, paint manufacturers do set different film thickness limits for their products.

Question 20

A vehicle's fender has been measured and found to have thicknesses of 8.5 mil, 8.9 mil, 9.0 mil, 8.2 mil, and 8.8 mil, in five different locations on the fender. What is the average film thickness? ____________________ mil

Accepted Answer

The answer of A vehicle's fender has been measured and...

Quiz 25: Surface Preparation

Technician A says that the first step for refinishing preparation is to chemically clean the surface to be refinished. Technician B says that the first step for refinish preparation is soap and water wash. Who is correct?

Block sanding is done to ____________________ the high spots on an uneven surface.

Technician A says that 40-grit sandpaper is the best to use when stripping old finish from aluminum hoods. Technician B says chemical stripping is best used when the entire finish must be removed down to the substrate. Who is correct?

Lacquer finish cures through oxidation.

Technician A says that guide coat helps a technician identify imperfections. Technician B says that guide coat helps level the surface during paint preparation. Who is correct?

Aluminum should never be sanded with an abrasive grade more aggressive than _______________ grit.

Block sanding should never be done wet.

A technician will be mixing soap and water for cleaning a vehicle. The soap diluted 1 part soap to 50 parts water. The amount of water in the bucket is 4 gallons. How much soap should the technician put in the water?

Technician A says that preparing an aluminum substrate is done using the same steps and materials used for a steel substrate. Technician B says a solvent test can be used to determine if the existing finish is a lacquer or another more durable finish. Who is correct?

Technician A says that adhesion promoter is a coating that helps topcoat stick to OEM paint. Technician B says that adhesion promoter is used on certain types of plastic. Who is correct?

Not all primers provide corrosion protection.

Technician A says that each vehicle will have a slightly different refinish plan. Technician B says the cleaner the vehicle before the painting is initiated the less likely of having dirt in the newly applied finish. Who is correct?

Blocking is used to remove the shine from a paint surface before refinishing.

Technician A says that when using a DA sander, it is not necessary for the technician to wear gloves. Technician B says that a particle mask should be worn when sanding primer filler. Who is correct?

Plastic is refinished the same way, no matter which type of plastic is used.

____________________ is done primarily to deglaze the surface.

Technician A says that careful feathering and priming reduces the possibility of the repair showing. Technician B says that scuffing and sanding are the same processes. Who is correct?

Technician A says the bare metal should be cleaned with wax and grease remover before applying conversion coating to prevent rust. Technician B says that a steel paint cup should be used with acid etch primer. Who is correct?

Technician A says abrasive discs are available in either an open or closed coat configuration with the closed coat having a tightly packed layer of abrasive on the surface. Technician B says that paint manufacturers have different film thickness limits. Who is correct?

A vehicle's fender has been measured and found to have thicknesses of 8.5 mil, 8.9 mil, 9.0 mil, 8.2 mil, and 8.8 mil, in five different locations on the fender. What is the average film thickness? ____________________ mil