Question 321 of 276 · Alberta Class 4 Knowledge Test
During an ambulance inspection, what is the minimum tread depth for the drive axle tire?
Exactly one answer is correct.
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Correct answer to question 321
- A: 1.6 mm
Explanation
For Class 4 ambulances, the drive axle tire must have a tread depth of not less than 1.6 mm. The stricter 3.2 mm minimum applies to the steering axle tire.
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