CDL模拟考试 2026
CDL等级：A、B和C
CDL驾照根据车辆重量和类型分为三个等级。你的等级决定了你可以驾驶哪些车辆以及需要哪些背书考试。
A级
组合车辆，GCWR为26,001磅以上，被拖车辆超过10,000磅。包括半挂车、平板车、牲畜运输车和油罐车。
B级
GVWR为26,001磅以上的重型单车辆，或拖行10,000磅以下的车辆。包括直卡车、大型公共汽车、自卸车和箱式卡车。
C级
26,001磅以下、设计用于运输16人以上乘客或运载需要标牌的危险材料的车辆。
CDL背书
HazMat(H)
The HazMat endorsement (H) authorizes you to transport hazardous materials in commercial vehicles. This is one of the most sought-after CDL endorsements because...
立即练习Air Brakes
The air brakes endorsement removes the air brake restriction from your CDL, allowing you to operate any commercial vehicle equipped with air brakes. Nearly all ...
立即练习Tanker(N)
The Tanker endorsement (N) is required to drive a commercial vehicle designed to transport liquid or gaseous materials in a tank or tanks rated at 119 gallons o...
立即练习School Bus(S)
The School Bus endorsement (S) authorizes you to drive a school bus carrying students. This is one of the most regulated CDL endorsements due to the safety of c...
立即练习Passenger(P)
The Passenger endorsement (P) authorizes you to drive a commercial vehicle designed to carry 16 or more passengers, including the driver. This endorsement is re...
立即练习Doubles/Triples(T)
The Doubles/Triples endorsement (T) authorizes you to pull double or triple trailers with a Class A CDL. This endorsement is common in long-haul freight operati...
立即练习Combination
Combination vehicles knowledge is tested as part of the Class A CDL general knowledge exam. It covers the operation of tractor-trailer rigs and other combinatio...
立即练习按州练习CDL
CDL知识考试由你所在州的DMV或执照机构管理。虽然CDL手册全国标准化，但每个州设定自己的费用和要求。