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Florida CDL Practice Test: Class A - Test 6 2019

(From the 2019 Florida CDL Handbook)
Number of tests: 6
Number of questions: 30
Passing score: 80

Directions: When applying for this license, applicants must pass a 50-question test. And applicants must score 80% to pass the test. The following questions are based on the details provided in the Florida Commercial Driver Handbook. Endorsements that may be used with a Class A CDL include Hazardous Materials, Passenger, Double and Triples, HazMat and Tanker, Air Brakes and School bus. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Florida DMV locations.

You have made 2 errors so far.
1. Within the first ____ miles of your journey you should always check that your cargo is secure.
  • Vehicles towing a trailer.

  • School buses and passenger buses carrying passengers.

  • Motorcycles.

  • Pick up trucks.

2. In tractors and straight trucks spring brakes will come on fully when the air pressure drops to what range?
  • Alcohol does not

  • Only a blood alcohol level greater than the legal limit

  • Only a blood alcohol level greater than .05

  • Even the smallest amount of alcohol

3. What is the purpose of dummy coupler?
  • All of the above

  • Take your eyes off the road

  • Take your hands off the wheel

  • Take your attention away from the driving task

4. The space under a heavily loaded vehicle is very small. Because of this you might want to avoid what surfaces?
  • Warning of a right turn ahead.

  • Warning of a winding road ahead.

  • Warning of merging traffic to the right.

  • Warning of a right curve ahead.

5. If the air compressor does not have its own oil supply, how is it lubricated?
  • Look for traffic by using your inside rear-view mirror.

  • Look for traffic by turning your head.

  • Turn on your four-way flasher.

  • Sound your horn.

6. The parking brake valve should close when the air pressure falls into what range?
  • Condition and type of vehicle tires

  • Condition of your vehicle's brakes

  • The time of day

  • Your own reaction time