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Oklahoma Commercial Drivers License (CDL) Practice Test 1

1. The tendency for long commercial vehicles to swing wide on turns is called:
  Fishtailing
  Dovetailing
  Offtracking
  Hydroplaning
2. Water is the best way to put out a fire when the fuel is:
  Gasoline.
  Grease.
  Chemicals.
  None of the above.
3. Three things factor into how quickly you can come to a full stop; those are:
  Perception distance, response distance, reaction distance.
  Perception distance, reaction distance, braking distance.
  Observation distance, reaction distance, slowing distance.
  Road conditions, speed, perception distance.
4. If you park along side the road at night, you must:
  Keep your turn signals on all night.
  Set up warning cones or triangles within 10 minutes of pulling over.
  Turn on your four-way emergency flashers.
  Sound your horn every 20 minutes.
5. Whenever you drive at night, you should:
  Make sure you are well rested.
  Drink plenty of coffee.
  Slow down.
  Always drive with your high beams on.
6. The phrase gross combination weight is figured by adding together:
  The cargo, the trailer, and the weight of the vehicle.
  The load and the trailer only.
  The trailer and the powered vehicle.
  The weight of the driver, the cargo, the trailer and the powered vehicle.
7. While driving, the driver should always be looking down the road:
  20-30 seconds ahead.
  2-5 seconds ahead.
  5-10 seconds ahead.
  12-15 seconds ahead.
8. Drivers should check the exhaust system regularly because:
  Fumes can pollute the air.
  You could be cited.
  Sometimes-fatal fumes can come into the cab and make you sick.
  A faulty system can cause your engine to seize up.
9. You can assume that posted overhead clearance signs are correct:
  Because they are checked regularly.
  Sometimes, except when the road has just been paved.
  Never, because your cargo load may effect clearance.
  Except in certain bad weather conditions.
10. When you park your vehicle, you should find a place that:
  Is quiet and secluded.
  Does not require backing up as you leave.
  Serves good food.
  Allows for 10 feet of space all around your rig.
11. If you have a breakdown or emergency, you need to put reflective triangles out at:
  20 feet, 100 feet and 200 feet facing approaching traffic.
  10 feet, 100 feet and 200 feet facing approaching traffic.
  50 feet, 100 feet and 500 feet facing approaching traffic.
  25 feet, 100 feet and 250 feet facing approaching traffic.
12. In hazardous weather conditions, you should:
  Maintain the posted speed limit.
  Turn on your high beams so you can see more clearly.
  Slow down and contact dispatch for further instructions.
  Keep driving until you come to a truck stop.
13. When driving down a steep downhill grade, you should:
  Shift into a lower gear than one you would use to go up the same grade.
  Shift into a higher gear than one you would use to go up the same grade.
  Shift into the same gear that you would use to go up the same grade.
  Read your vehicle\'s manual before attempting the grade.
14. Before beginning a trip, you should always:
  Verify that the cargo is secured.
  Check all lights and safety equipment.
  Test your steering and brake systems.
  All of the above.
15. You have to study and pass a test before you are granted a commercial drivers license:
  If you are younger than 18 years old.
  If you have never had a license before.
  If you plan to carry passengers and drive vehicles of a certain size and weight.
  Only if you are planning to drive across country.
16. To help ensure passenger safety, bus drivers should always check to make sure the following are all in working order:
  The emergency exit handles.
  The railings and handholds.
  The signaling devises on doors.
  All of the above.
17. Before you can take the driving portion to get your commercial drivers license, you will need to:
  Make an appointment.
  Bring along the same type of vehicle you will be driving.
  Conduct a pre-trip inspection with the examiner.
  All of the above.
18. The purpose of you conducting a pre-trip inspection of your vehicle is:
  To make sure it is safe to drive.
  To make sure you know what to check on a vehicle.
  To eliminate poor drivers quickly.
  Both 1 and 2.
19. Unsecured cargo can be dangerous because:
  During shifting it can harm you or damage the vehicle.
  It will cost the company a lot of money if it gets damaged.
  Other drivers will know you are a novice.
  Your insurance rates may go up.
20. The rules governing covering loads, securing cargo, where you can drive, and how much your load can weigh:
  Are determined by the federal government.
  Are determined by local government.
  Are determined by local, state, and the federal government.
  Are determined by state government.
21. The maximum weight that a tire can carry at a specific tire pressure is called:
  Tire load.
  Tire pressure.
  Tire max.
  Tire weight.
22. Overloading a vehicle may have adverse effects on a vehicle\'s:
  Speed control.
  Steering ability.
  Braking system.
  All of the above.
23. The reason why cargo is required to be covered in many states is:
  So nobody knows what materials you are carrying.
  So the weather doesn\'t damage the cargo.
  So the cargo does not fall off the vehicle.
  Both 2 and 3.
24. You should get into the habit of inspecting your cargo:
  Only at the beginning of a trip.
  Only midway through a trip.
  Before, 50 miles into, and after every break during the trip.
  None of the above.
25. If your vehicle is equipped with air brakes, you need to know:
  The parts of the system.
  How to inspect the system.
  How to spot signs of trouble.
  All of the above.