A brief summary of the cdl permit process in Florida. At most Florida DMV offices the florida cdl written test is administered on a computer. Each question on the test is timed. You have to be well prepared to pass the tests. The minimum passing grade for each written test is 80%. The general knowledge test is the longest Florida cdl written test at around 50 total questions. All the other endorsements are around 30 questions each. The best way to prepare for the florida cdl permit test is with the florida cdl test answers and practice tests.