Which of these is true about overhead clearance?
Answer: A — The weight of the cargo can change the height of the vehicle.
Cargo weight can greatly affect the overall height of a vehicle. As a result, the allowable clearance height may change depending on the weight of the cargo. This means that vehicles carrying heavy loads may have less overhead clearance than those without cargo. Option B is incorrect because as previously mentioned, cargo weight can affect the vehicle's height. Option C is not true because overhead clearance is important for all vehicles, regardless of height. Option D is incorrect because insufficient overhead clearance can lead to potential accidents or damage to the vehicle, making it a safety concern.