CDL Tanker Endorsement Practice Exam

Signs of overloading a tanker primarily include tire squatting and increased stopping distance. When a tanker is overloaded, the weight being supported by the tires exceeds their designed capacity, causing them to bend or 'squat.' This is a critical safety concern, as it can affect the vehicle's handling capabilities. Increased stopping distance is another consequence of overloading because the additional weight requires more distance to slow down or stop. The brakes have to work harder against the extra load, which can lead to longer stopping distances and may increase the risk of accidents. The other options include factors that do not correlate with overloading in a tank vehicle. Excessive fuel consumption and engine noise can occur for various reasons, but they are not specific indicators of overloading. Likewise, reduced maneuverability is a symptom of dealing with heavy loads, yet stating that it leads to improved fuel efficiency is inaccurate, as heavy loads typically decrease fuel efficiency. Unusual tire wear and improved handling also do not represent the consequences of overloading, as overloading generally leads to negative impacts on handling, not improvements.