138 CDL General Knowledge Practice Test Questions
Why do I need a Class A CDL License?
Read 138 CDL General Knowledge Practice Test Questions to get more information about this exam. Driving certain commercial motor vehicles always requires specialized skills and knowledge. In number of states, any people who are licensed to drive an auto-mobile can also drive a tractor-trailer or bus legally before implementation of the Commercial Driver’s License Program (CDL). Even a person is not skill-tested in a representative vehicle in many of the states that did have a classified licensing system. Consequently, many drivers are operating motor vehicles that they may not have been qualified to drive.
On October 27, 1986, the Commercial Motor Vehicle Safety Act of 1986 was signed into law. The goal of this ACT is to improve highway safety by ensuring that drivers of large trucks and buses are qualified to operate vehicles and to remove unsafe and unqualified drivers from the highways. The FHWA (Federal Highway Administration) has developed and issued standards fro testing and licensing commercial motor vehicle drivers. The standards require each state to issue a Class A CDL License to a commercial motor vehicle driver only after the driver passes the tests administered by the state related to the type of vehicle. If drivers drive a vehicle that meets one of the following definitions of a CMV, they need a CDL license:
1. Class A CDL: Any combination of vehicles with a GVWR of 26,001 or more pounds provided the GVWR of the vehicle(s) being towed is in excess of 10,000 pounds.
Careers that require a Class A CDL License include but are not limited to:
• Interstate Tractor Trailer Driver
• Intrastate Tractor Trailer Driver
2. Class B CDL: Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing a vehicle not in excess of 10,000 pounds GVWR.
Careers that require a Class B CDL License include but are not limited to:
• Hauling specialty cargo
• Heavy truck and tractor-trailer drivers
• Auto-transport drivers
• Furniture delivery
• Self-employed truck driver
• Store delivery driver
• Local driver
• Truck driver training instructor
• Cement and concrete production
• Bus driver
• Supply company delivery
3. Class C CDL: Any single vehicle with a GVWR of less than twenty-six thousand one (26,001) pounds or any such vehicle towing a vehicle with a GVWR not in excess of ten thousand (10,000) pounds including:
• Vehicles designed to transport sixteen or more passengers, including the driver, or more than ten passengers, including the driver, and used to transport students under the age of twenty-one years to and from school
• Vehicles used to transport hazardous materials which are required to be placarded in accordance with 49 CFR 172, Subpart F, as amended.
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