IDA Wheel and Tire Care 2

Question 1

What is the primary cause of tire 'blooming' or browning over time?

Accepted Answer

Antiozonant compounds in the rubber migrating to the surface

Answer

Tire manufacturers add antiozonant compounds to rubber to prevent cracking; these compounds migrate to the surface and oxidize, causing the brown discoloration known as blooming.

Question 2

What does the term 'curb rash' refer to in wheel detailing?

Accepted Answer

Scuffs and scratches on the wheel rim from contact with curbs

Answer

Curb rash refers to the physical abrasion damage — scuffs, scratches, and gouges — that occurs when the wheel rim contacts a curb.

Question 3

Which type of tire dressing should be avoided on tires used in high-performance or track driving scenarios?

Accepted Answer

Silicone-based tire dressings

Answer

Silicone-based dressings can reduce tire grip by coating the contact patch and sidewall, making them unsafe for performance or track use where traction is critical.

Question 4

What primary contaminant in wheel wells makes cleaning them an important step in a thorough detail?

Accepted Answer

Accumulated road grime, tar, and mud that accelerates rust

Answer

Wheel wells collect road grime, tar, mud, and road salt, which trap moisture against bare metal and accelerate rust and corrosion of structural components.

Question 5

When cleaning lug nut recesses and bolt holes, which tool provides the best access?

Accepted Answer

Thin detailing stick brush or lug nut brush

Answer

Thin detailing stick brushes or dedicated lug nut brushes are designed to reach into narrow bolt holes and lug nut recesses where other tools cannot fit.

IDA - International Detailing Association Practice Test

IDA - International Detailing Association Practice Test

IDA Wheel and Tire Care 2