Free Automobile Parts Specialist (Test P2) Practice Questions

Sample Practice Questions

Try these 10 sample questions from the Automobile Parts Specialist (Test P2) practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1A replacement shaft has a specified diameter of 0.75 inch. What is this diameter in millimeters?

   1. A. 1.905 mm
   2. B. 19.05 mm
   3. C. 25.40 mm
   4. D. 33.87 mm

   Answer: B

   Explanation: NIST states that the standard inch "is exactly equivalent to 25.4 mm." Multiply 0.75 by 25.4 to obtain 19.05 mm. Dividing by the conversion factor or shifting the decimal gives an incorrect dimension.

   Reference: SI Units – Length — FAQ: When did the metric redefinition of the inch occur?

2. 2A consumer wants to read the written warranty on a $90 replacement part before buying it at the counter. What must the retailer provide under the FTC pre-sale availability rule?

   1. A. Access to the written terms before purchase
   2. B. Access to the written terms only after payment
   3. C. A verbal warranty-duration summary in place of the terms
   4. D. Access to the written terms only when filing a claim

   Answer: A

   Explanation: The FTC requires covered written warranties to "be available to consumers before they buy." A $90 consumer product is above the stated $15 threshold. Payment or a later claim cannot be made a prerequisite to examining the terms, and a verbal duration summary does not replace access.

   Reference: Businessperson's Guide to Federal Warranty Law — Making Warranties Available Prior to Sale

3. 3Which gasket seals the valve or cam cover to the top of the cylinder head to prevent an external engine-oil leak at that joint?

   1. A. Oil pan gasket
   2. B. Intake manifold gasket
   3. C. Timing cover gasket
   4. D. Valve cover gasket

   Answer: D

   Explanation: Fel-Pro identifies the valve-cover gasket as sealing the cover to the "cylinder head". This joint prevents external oil leakage; the other listed gaskets seal different engine joints.

   Reference: Fel-Pro Leak Repair Sealing Solutions — Valve Cover Gaskets

4. 4How many characters are in the standardized VIN used on a modern U.S. passenger car?

   1. A. 13
   2. B. 15
   3. C. 17
   4. D. 19

   Answer: C

   Explanation: NHTSA describes the VIN as a "17-character number that encodes specific information about the particular vehicle." A shortened engine number or partial VIN should not be mistaken for the complete vehicle identifier.

   Reference: NHTSA VIN Decoder — VIN Decoder, introductory paragraph

5. 5A RockAuto catalog search lists the correct make, year, and model but the wrong engine. What should the parts specialist do before selecting an engine-specific part?

   1. A. Keep the results because the model matches
   2. B. Use the lowest-priced result for that model
   3. C. Change the search to the correct engine
   4. D. Use the result with the closest-looking photo

   Answer: C

   Explanation: RockAuto instructs users to select make, year, model, and "engine size". An engine-specific part must be looked up for the correct engine; model, appearance, or price cannot replace that application input.

   Reference: RockAuto Help with Finding Parts for Your Vehicle — Do you have a part for my car or truck?

6. 6A RockAuto brake-pad listing is sold as an axle set. How many sets should be ordered to replace the pads on both front wheels?

   1. A. One set
   2. B. Two sets
   3. C. Three sets
   4. D. Four sets

   Answer: A

   Explanation: RockAuto states that brake pads and shoes are sold as "axle sets." One front-axle set covers both front wheels; ordering one set per wheel would double the needed quantity.

   Reference: RockAuto Help with Choosing Parts — What quantity will I receive?

7. 7Which merchandising document is a visual plan showing where products should be placed in a retail display?

   1. A. Purchase order
   2. B. Planogram
   3. C. Packing list
   4. D. Inventory ledger

   Answer: B

   Explanation: Shopify describes a planogram as a "detailed drawing, or visual plan". It plans merchandise placement, whereas purchase orders, packing lists, and inventory ledgers record ordering, shipments, or stock.

   Reference: What Is Cross Merchandising in Retail? — How to cross merchandise, introductory paragraph

8. 8A parts drawing lists a hose length as 36 centimeters. What length should be entered in a catalog that uses millimeters?

   1. A. 3.6 mm
   2. B. 36 mm
   3. C. 360 mm
   4. D. 3,600 mm

   Answer: C

   Explanation: The NIST Units of Length table equates "10 millimeters (mm)" with "1 centimeter (cm)". Thus 36 centimeters equals 360 millimeters. The other values apply the decimal conversion in the wrong direction or by the wrong factor.

   Reference: SI Units – Length — Units of Length table

9. 9A customer assumes that a part labeled with a limited warranty has no warranty coverage. Which explanation correctly describes that designation under federal warranty guidance?

   1. A. It means there is no express warranty coverage
   2. B. It means the warranty must last less than one year
   3. C. It means at least one full-warranty standard is not met
   4. D. It means coverage must end when ownership changes

   Answer: C

   Explanation: The FTC defines a limited warranty as one that "does not meet at least one of the Act's standards". The label alone does not mean no coverage or prescribe a fixed duration or transferability rule; the actual terms determine those details.

   Reference: Businessperson's Guide to Federal Warranty Law — Titling Written Warranties as Full or Limited

10. 10An engine needs a replacement gasket at the joint between the oil pan and the bottom of the engine. Which gasket matches this location?

    1. A. Oil pan gasket
    2. B. Valve cover gasket
    3. C. Exhaust manifold gasket
    4. D. Intake manifold gasket

    Answer: A

    Explanation: Fel-Pro describes the oil pan gasket as "Sealing the oil pan to the bottom of the engine". The other options seal cover or manifold joints rather than the oil-pan joint.

    Reference: Fel-Pro Leak Repair Sealing Solutions — Oil Pan Gaskets