No
If the vehicle requires a CDL in service, it'll require a CDL for the test drive.
The cost of renewing licences varies by state. You need to inquire with your state's DMV.
Depends on what class of CDL you're going for, among other things.
Everything you need is in the CDL handbook. Read it. Study it. Learn it.
The General Knowledge test is one of the tests you'll need to take in order to get a permit. What other tests you'll needs depends on what class of CDL you're going for, and the nature of the vehicle(s) you'll be operating.
You either need to provide your own vehicle or test at a facility that will rent you one.
You need to specify what your circumstances are, and what you're trying to do.
If you need to earn your CDL for your job, the best thing that you can do is to attend a CDL training school. By attending one of the many CDL training schools, you can learn the basics of driving a truck. A CDL school will teach you the most important things that you will need to know to pass the CDL test. You will also get plenty of hours of practice driving a truck.
A CDL I believe only covers the person who passed the test for it. Your workers need their own CDLs.
Most companies will require it, yes.
The CDL test, which stands for Commercial Driver's License, is a test which allows one to drive large vehicles. If you are planning to work in a field involving driving large vehicles, you should take the CDL test.
If you want information about LCDL schools, the website "CDLschool.com" has enormous amounts of information on how to get started, to what you need to pay and where you can take the test.