20 Color Identification & Formula Practice Questions & Answers

Every Color Identification & Formula practice question from the ASE B2 Painting & Refinishing Practice Test, with the correct answer and a short explanation.

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1. A painter cannot find the paint code label in the driver's door jamb of an unfamiliar vehicle. What is the best next step?
- A.Take a spectrophotometer reading and record its pick as the code
- B.Check the paint maker's code-location chart for that make and model✓ Answer
- C.Use the color name printed in the owner's manual to pick a formula
- D.Copy the code from a same-model car of that color parked on the lot
The location of the paint code (service parts ID) label varies by maker and model—door jamb, under the hood, trunk or glovebox—so the paint maker's code-location charts or service information tell the painter where to look. Another car's code, a color name or an instrument reading is not the vehicle's own factory code.
Ref QB-PAWVKUSource: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
2. Painter A says the paint code label is in the same location on every vehicle built by a given automaker. Painter B says the label may also list a trim color code and a two-tone code. Who is right?
- A.A only
- B.B only✓ Answer
- C.Both A and B
- D.Neither A nor B
Label location varies by model and year even within one automaker, so Painter A is wrong. The vehicle ID label often carries more than the body color—such as a trim code and the second code of a two-tone scheme—so Painter B is right.
Ref QB-5TCDUSSource: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
3. To identify the finish on a red car, a painter rubs a hidden spot with fine polishing compound on a clean white cloth. The cloth turns red. What does this indicate?
- A.The finish is basecoat/clearcoat; the clear contains a tinted toner
- B.The finish is a tri-coat; the pearl midcoat is rubbing onto the cloth
- C.The finish is single-stage; the color pigment is in the top layer✓ Answer
- D.The finish is clearcoated; the compound has dissolved the basecoat
A single-stage finish carries color and gloss in one layer, so polishing or sanding it removes pigment and colors the cloth. On a basecoat/clearcoat finish the top layer is clear, so the residue is white or clear unless the clear is worn through.
Ref QB-NAJJETSource: ASE Collision Repair and Refinish Study Guide, Test B2 task list (determine the type of finish); I-CAR refinish training principlesReport a problem with this question
4. Painter A says that if lightly wet-sanding a hidden spot with fine paper leaves only white residue, the vehicle has a clearcoat finish. Painter B says that if the residue on the paper is the vehicle's color, the finish is single-stage. Who is right?
- A.Neither A nor B
- B.B only
- C.Both A and B✓ Answer
- D.A only
Both describe the standard residue test. Clearcoat sands to a white or clear powder because it holds no pigment, while a single-stage topcoat contains the pigment, so its sanding residue shows the color.
Ref QB-42GRB3Source: ASE Collision Repair and Refinish Study Guide, Test B2 task list (determine the type of finish); I-CAR refinish training principlesReport a problem with this question
5. The paint code lookup for a vehicle shows a three-stage pearl white. Which layer sequence does this finish use?
- A.A white basecoat with pearl mixed in, then two clearcoats
- B.A groundcoat, then a translucent pearl midcoat, then clearcoat✓ Answer
- C.A sealer, a single-stage white, then a pearl-loaded clear
- D.A pearl basecoat, a tinted clear, then a second plain clear
A tri-coat (three-stage) finish uses a solid groundcoat for hiding, a translucent pearl or mica midcoat that creates the depth and color shift, and a clearcoat for gloss and protection. The midcoat is not hiding, so its coat count changes the final color.
Ref QB-MHNWW3Source: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
6. Before refinishing a tri-coat panel, how should the painter decide how many coats of midcoat to apply?
- A.Apply the count that a spectrophotometer reading suggests
- B.Follow the coat count printed on the vehicle's paint code label
- C.Match the number of coats the groundcoat needed to hide
- D.Spray a let-down panel with stepped midcoat coats to compare✓ Answer
Because the translucent midcoat darkens or shifts with each coat, the painter sprays a let-down panel over the groundcoat with one, two, three or more midcoat coats, clears it, and compares each step to the vehicle to find the matching count.
Ref QB-325E62Source: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
7. While planning a fender repair, a painter finds that the door next to it was refinished at some earlier time. How should this affect color selection?
- A.Use the code's standard formula, since the label governs every panel
- B.Judge the formula against the adjacent panels as they are right now✓ Answer
- C.Match the rear quarter instead, since it is the oldest original panel
- D.Strip the door first so it can be redone in the original formula
A previous refinish may not match the factory formula for the code, and the repair has to blend with the panels that sit beside it. The painter therefore checks variants and spray-outs against the adjacent panels as they actually are, not just against the label.
Ref QB-KHAKR2Source: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
8. All of these help a painter identify the type of finish on a vehicle EXCEPT:
- A.Sanding a hidden spot lightly and checking the residue color
- B.Looking up the paint code in the paint maker's color reference
- C.Measuring the gloss level with the vehicle in direct sunlight✓ Answer
- D.Viewing the color at several angles for a pearl or mica effect
Both a single-stage finish and a clearcoat can be glossy, so a gloss reading does not reveal the finish type. The residue test, the code lookup (which can show a two- or three-stage color) and checking for angle-dependent pearl or mica effect all do.
Ref QB-627EP5Source: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
9. A painter looks up a paint code and the color retrieval system lists a prime formula and three alternate variants. What is the best way to choose one?
- A.Use the prime formula, since alternates are only for very old cars
- B.Mix equal parts of all four so the color averages out in between
- C.Hold the variant chips against the cleaned, polished car to compare✓ Answer
- D.Use the newest-dated variant, since it shows current production
One code can be produced at different plants, by different OEM paint suppliers and in different batches, so variants exist for the same nominal color. The closest one is chosen by comparing the variance chips with the cleaned, polished car beside the repair, then confirmed with a spray-out.
Ref QB-PHCK96Source: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
10. Which information does a painter need to retrieve the correct mixing formula for a repair?
- A.The color name and model year, since names are unique to each color
- B.The paint code alone, since every code has exactly one formula
- C.The trim code and make, since the trim code sets the body color
- D.The paint code, make and year, plus the product line and amount✓ Answer
Formulas are retrieved by paint code together with make and year, because codes repeat across makes and years, and the result is scaled to the chosen product line and the quantity to be mixed. Color names are not unique, and one code can have several variants.
Ref QB-7MBEMDSource: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
11. When comparing variance chips to a vehicle, a painter should do all of these EXCEPT:
- A.Hold the chips on the panel as-is so its weathering is matched✓ Answer
- B.View the chips under color-corrected light or natural daylight
- C.Clean and polish the area of the car right next to the repair
- D.Check each chip face-on and at side angles for the flop tone
Dirt and oxidation hide the true color, and the refinished area will be compounded and polished too, so chips are compared against a cleaned, polished area. Correct lighting and viewing both face-on and at angles are needed because metallics and pearls change with angle.
Ref QB-P4692DSource: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
12. Painter A says a spectrophotometer reading should be taken on a cleaned, polished area next to the repair, at the angles the instrument measures. Painter B says that once the spectrophotometer selects a formula, a spray-out card is unnecessary. Who is right?
- A.Both A and B
- B.B only
- C.Neither A nor B
- D.A only✓ Answer
A spectrophotometer reads color at several angles and is only as good as the surface it measures, so the area must be cleaned and polished. Its suggestion is an aid, not the final check; a spray-out card compared with the car still confirms the match before painting.
Ref QB-8MPRSESource: ASE Collision Repair and Refinish Study Guide, Test B2 task list (identify colour formula; spray test panel); I-CAR refinish training principlesReport a problem with this question
13. A spectrophotometer suggests a formula for a silver metallic, but the cleared spray-out card is visibly darker than the car at a side angle. What should the painter do next?
- A.Re-measure an unpolished spot, since polish skews the instrument
- B.Trust the reading, since the instrument is more exact than the eye
- C.Check other variants or tint it, then spray a new card and compare✓ Answer
- D.Paint the panel anyway and plan to tint once it is on the vehicle
The spray-out card is the final check because it shows how the mixed paint actually looks when sprayed and cleared. If it does not match, the painter tries a closer variant or adjusts the color and sprays another card before painting the vehicle.
Ref QB-Q4HK7ESource: ASE Collision Repair and Refinish Study Guide, Test B2 task list (identify colour formula; check and adjust colour match); I-CAR refinish training principlesReport a problem with this question
14. Which sequence is correct when weighing out a paint formula on an electronic mixing scale?
- A.Level the scale, set the empty can on it, zero it, add toners in order✓ Answer
- B.Place the can, add the first toner, then zero the scale for the rest
- C.Level the scale, add the largest toner first, then the rest by weight
- D.Zero the empty scale, set the can on it, then add toners in any order
The scale must be level to weigh accurately, and zeroing (taring) with the empty container on it removes the container's weight. Toners are then added in the exact order listed, because the formula's running totals and any recalculation depend on that sequence.
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15. A formula is displayed in cumulative (running-total) form: Toner 1 to 200.0 g, Toner 2 to 260.0 g, and Toner 3 to 275.0 g. How much Toner 3 is actually added?
- A.15.0 g✓ Answer
- B.60.0 g
- C.75.0 g
- D.275.0 g
In a cumulative formula each figure is the scale reading to stop at, so the amount of a toner is its total minus the previous total: 275.0 g minus 260.0 g equals 15.0 g. An incremental formula would instead list 15.0 g directly.
Ref QB-R4VWCFSource: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
16. While weighing a formula, a painter over-pours one toner by several grams. What is the correct way to recover?
- A.Add the same extra weight to the next toner to balance the error
- B.Ignore it, since a small excess evens out when the paint is reduced
- C.Keep going and later spoon out the extra from the mixed paint
- D.Have the software recalculate the remaining toners to the new ratio✓ Answer
Once a toner is over-poured, every other component must be scaled up in the same proportion to keep the color, which the formula software (or a careful recalculation) does; otherwise the batch is remixed. Removing paint or adding to one other toner cannot restore the ratio, and reducer does not correct pigment proportions.
Ref QB-AMDE5HSource: ASE Collision Repair and Refinish Study Guide, Test B2 Painting and Refinishing task list (Paint Mixing, Matching, and Applying)Report a problem with this question
17. Painter A says toners on the mixing bank need agitating only when one looks settled in its can. Painter B says toners agitated a week ago can be used without agitating them again. Who is right?
- A.Neither A nor B✓ Answer
- B.A only
- C.Both A and B
- D.B only
Pigment and flake settle continuously, often without visible signs, so the mixing bank must be agitated on the paint maker's schedule—typically at least daily before use. Toner that has not been agitated dispenses at the wrong strength and gives the wrong color.
Ref QB-S489JGSource: ASE Collision Repair and Refinish Study Guide, Test B2 task list (use of mixing equipment and materials); paint manufacturer mixing-system practiceReport a problem with this question
18. A silver metallic mixed exactly to formula sprays out lighter and with less sparkle than a card of the same formula mixed last week. The mixing bank was not run over the long weekend. What is the most likely cause?
- A.The toners settled in their cans because they were not agitated✓ Answer
- B.The formula variant was wrong for the plant that built the car
- C.The color code label was misread when the formula was retrieved
- D.The mixing container was too large for the amount of paint made
The same formula matched last week, so the variant and code are not the problem. When the bank is not agitated, pigment and aluminum flake settle, so the toner dispensed is weaker or richer than intended and the color and metallic effect shift even though the weights were exact.
Ref QB-3MW3X8Source: ASE Collision Repair and Refinish Study Guide, Test B2 task list (use of mixing equipment and materials); paint manufacturer mixing-system practiceReport a problem with this question
19. Why is accurate weighing especially important when a formula calls for a strong toner such as black?
- A.Strong toners control drying, so excess slows the paint's cure
- B.Strong toners set the viscosity, so excess makes paint too thick
- C.Strong toners cost the most, so any excess wastes the most money
- D.Strong toners tint heavily, so even a tiny error shifts the color✓ Answer
A strong toner has high tinting strength, so even a fraction of a gram too much or too little produces a visible color shift. Drying, cure and viscosity are governed by the binder, reducer and activator, not by the color toner.
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20. A painter is short of one toner, and a different paint system on the shelf has a toner with a similar color name. What should the painter do?
- A.Substitute the other toner, since same-named toners share pigment
- B.Obtain the correct toner, since components must stay in one system✓ Answer
- C.Use half as much of the other toner, since other systems run stronger
- D.Mix in the other toner if the reducer also comes from that system
Toners, binders, reducers and activators are formulated to work together within one paint system, and formulas are written for that system's toners. Mixing brands risks a wrong color and poor adhesion, durability or cure, so the correct toner must be obtained.
Ref QB-UBMJ2NSource: ASE Collision Repair and Refinish Study Guide, Test B2 task list (use of mixing equipment and materials); paint manufacturer technical data sheet practiceReport a problem with this question

1. A painter cannot find the paint code label in the driver's door jamb of an unfamiliar vehicle. What is the best next step?

2. Painter A says the paint code label is in the same location on every vehicle built by a given automaker. Painter B says the label may also list a trim color code and a two-tone code. Who is right?

3. To identify the finish on a red car, a painter rubs a hidden spot with fine polishing compound on a clean white cloth. The cloth turns red. What does this indicate?

4. Painter A says that if lightly wet-sanding a hidden spot with fine paper leaves only white residue, the vehicle has a clearcoat finish. Painter B says that if the residue on the paper is the vehicle's color, the finish is single-stage. Who is right?

5. The paint code lookup for a vehicle shows a three-stage pearl white. Which layer sequence does this finish use?

6. Before refinishing a tri-coat panel, how should the painter decide how many coats of midcoat to apply?

7. While planning a fender repair, a painter finds that the door next to it was refinished at some earlier time. How should this affect color selection?

8. All of these help a painter identify the type of finish on a vehicle EXCEPT:

9. A painter looks up a paint code and the color retrieval system lists a prime formula and three alternate variants. What is the best way to choose one?

10. Which information does a painter need to retrieve the correct mixing formula for a repair?

11. When comparing variance chips to a vehicle, a painter should do all of these EXCEPT:

12. Painter A says a spectrophotometer reading should be taken on a cleaned, polished area next to the repair, at the angles the instrument measures. Painter B says that once the spectrophotometer selects a formula, a spray-out card is unnecessary. Who is right?

13. A spectrophotometer suggests a formula for a silver metallic, but the cleared spray-out card is visibly darker than the car at a side angle. What should the painter do next?

14. Which sequence is correct when weighing out a paint formula on an electronic mixing scale?

15. A formula is displayed in cumulative (running-total) form: Toner 1 to 200.0 g, Toner 2 to 260.0 g, and Toner 3 to 275.0 g. How much Toner 3 is actually added?

16. While weighing a formula, a painter over-pours one toner by several grams. What is the correct way to recover?

17. Painter A says toners on the mixing bank need agitating only when one looks settled in its can. Painter B says toners agitated a week ago can be used without agitating them again. Who is right?

18. A silver metallic mixed exactly to formula sprays out lighter and with less sparkle than a card of the same formula mixed last week. The mixing bank was not run over the long weekend. What is the most likely cause?

19. Why is accurate weighing especially important when a formula calls for a strong toner such as black?

20. A painter is short of one toner, and a different paint system on the shelf has a toner with a similar color name. What should the painter do?

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