Yes, it is possible to operate a dump truck with a Class B Commercial Driver's License (CDL). A Class B CDL allows drivers to operate vehicles that weigh over 26,001 pounds, provided they are not towing a trailer that exceeds 10,000 pounds. Since most dump trucks fall within this weight category, a Class B CDL is sufficient for driving them. In summary, a Class B CDL permits the operation of dump trucks, as these vehicles typically meet the weight requirements outlined for this type of license. This means that individuals holding a Class B CDL can legally drive dump trucks, as long as they adhere to the regulations regarding weight and towing limits.