Home › CDL Practice Tests › General Knowledge Questions › Question 12
When inspecting dual tires, why is it a problem if the two tires are touching each other?
- A.Touching tires look unprofessional at delivery sites
- B.It makes checking pressure impossible
- C.The rubbing builds heat and can cause a tire failure
- D.It slightly increases fuel use but is otherwise harmless
Correct answer
C. The rubbing builds heat and can cause a tire failure
Why
Duals that touch rub as they flex, generating heat that breaks down the rubber and can lead to a blowout. Duals should have a visible gap and be matched in size and pressure.
Manual topic: Vehicle Inspection - Tires · From the General Knowledge practice bank (GK-012).