Vehicle InspectionCâu 3 / 120
During your walkaround you measure 3/32 inch of tread on a drive-axle tire and 5/32 inch on a steer tire. What is the correct conclusion?
a.Both tires are illegal and must be replaced
b.The steer tire is illegal but the drive tire is legal
c.Both tires are illegal but the vehicle may be driven to the nearest shop
d.Both tires meet the federal minimum tread requirements
Giải thích
Non-steering tires need at least 2/32 inch, so 3/32 is legal, and steer tires need at least 4/32 inch, so 5/32 is legal. Neither tire is below the minimum, so no replacement is required and no exception for driving to a shop is needed.
Trích dẫn luật: 49 CFR §393.75Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- You arrive for your shift and the tractor was driven by another driver yesterday. Before you move the vehicle, what does the federal rule require you to do first?
- What is the minimum legal tread depth in a major groove of a front steering-axle tire on a commercial motor vehicle?
- At what air pressure must the low-air-pressure warning device on an air-brake vehicle come on?
- You are running the air-brake check with a fully charged system, engine off, and the service brakes released. What is the maximum allowable air pressure loss per minute for a combination vehicle?
- With the engine off and the air system fully charged, you begin fanning off air pressure with the brake pedal. At roughly what pressure should the tractor protection valve and parking brake valve pop out?
- Which sequence correctly describes the seven-step inspection method?
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