DD is the major diameter of the thread. Thus 3/8-inch thread will have a 3/8 standing at the left most of the thread specification. The dimensions usually come at margins of an inch (1/2, Â¼, 1/8 ,1/16 etc). It must be noted that threads with a diameter smaller than Â¼ have been given special numbers, from 0 to 10.
The speed awareness course is an educational presentation that lasts approximately four hours. The workshop takes place in a classroom based scenario with up to 23 other motorists.he speed awareness course does not involve any type of test. You have been offered the opportunity to attend a speed awareness course because you were recorded driving above the legal speed limit. Although we do have the power to prosecute those who break the speed limit, we would rather persuade drivers to slow down.
How Long Is Truck Driving School? Programs vary significantly in length. At some schools, CDL training takes only three to five weeks. But at others, it can take eight to ten weeks or as long as 20 to 24 weeks. How long a program lasts is often determined by the depth and breadth of the in-classroom curriculum as well as the amount of on-the-road training.