Pi is the sixteenth letter of the Greek alphabet, representing sound. In the system of Greek numerals it has a value of 80. It was derived from the Phoenician letter Pe (). Letters that arose from pi include Cyrillic Pe, Coptic pi, and Gothic pairthra ().
The 3 types of commercial drivers are Class A, B, and C licenses. 1  Class A Commercial Driverâs License â Combination Vehicle permit holder can drive all commercial vehicles or a combination of commercial vehicles with a gross weight of 26,001 lbs. or more.
Find out how to get a commercial driverâs license below. Types of Commercial Driverâs Licenses. There are three main types of commercial driverâs licenses: Class A, Class B and Class C. In most states a Class A CDL allows the driver to operate any vehicle with a semi-trailer or trailer with two or more axles.