CDL General Knowledge Practice Test

Question. The parking brake should be tested while the vehicle is:

Question. A drivers trip log, if required:

Question. Should the pre-trip inspection report from the last driver be reviewed during your pre-trip inspection?

Question. If you are stopped at a roadside inspection and found to have a BAC (Blood Alcohol Concentration) of .02 you will:

Question. When roads are slippery, you should:

Question. If a tire blows out in a commercial vehicle, you should put the brakes on hard to stop quickly.

Question. What type of vehicles can get stuck on a railroad crossing?

Question. While driving, you see a small (1 foot square) cardboard box ahead in your lane. You should:

Question. Which of the pieces of emergency equipment should be carried at all times in your vehicle.

Question. What is counter steering?

Question. You do not have a hazardous materials endorsement on your commercial license. When can you drive a vehicle hauling hazardous materials?

Question. You are driving a new truck with a manual transmission. What gear will you probably have to use to take a long downhill grade?

Question. High beams should be:

Question. An en-route inspection should include checking:

Question. Where or when should you test the stopping action of your service brakes?

Question. Stab braking:

Question. Which of these statements about using turn signals is true?

Question. Retarders:

Question. Which of these statements about staying alert to drive is true?

Question. You are driving on a two lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is generally the best action?

Question. You should avoid driving through deep puddles or flowing water. But if you must, which of these steps can help keep your brakes working?

Question. Which of these statements about brakes is true?

Question. What should you do when your vehicle hydroplanes?

Question. Which fires can you use water to put out?

Question. Your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time?

Question. Which of these is a sign of a tire failure?

Question. Which of these statements about drinking alcohol is true?

Question. Which of these can help you stay alert while driving?

Question. Which one of these is not part of the check of the engine compartment done for a pre-trip inspection?

Question. According to the driver's manual, why should you limit the use of your horn?

Question. You are traveling down a long, steep hill. Your brakes get so hot that they fail. What should you do?

Question. How far should a driver look ahead of the vehicle while driving?

Question. Which of these statements about cargo loading is true?

Question. Which of these statements about marking a stopped vehicle is true?

Question. You are driving a 40 foot vehicle at 45 MPH. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe?

Question. The amount of liquid to load into a tank depends on:

Question. You are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin. You should:

Question. You should use mirrors to check:

Question. The proper way to hold the steering wheel is at clock positions:

Question. Cargo inspections:

Question. Your brakes can get wet when you drive through a heavy rain. What problems can occur when the brakes are applied?

Question. How do you test hydraulic brakes for leaks?

Question. Which of these is a good rule to follow when driving at night.

Question. A vehicle is loaded with very little weight on the drive axle. What may result?

Question. The key principle in balancing cargo weight is to keep the load:

Question. Which of these statements about using mirrors is true?

Question. Which of these statements about cold weather driving is true?

Question. The most important reason for being alert to hazards is so:

Question. Which of these is a good rule to follow when using a fire extinguisher?

Question. Is it legal to drive with one fourth of a vehicles leaf springs broken or missing?

Question. You have left the road in an emergency condition, it is

Question. Which of these statements about down shifting is true.

Question. Which of these statements about drugs is true?

Question. To avoid a crash, you had to drive onto the right shoulder. You are now driving at 40 MPH n the shoulder. How should you move back onto the pavement?

Question. Which of these statements about managing space is true?

Question. Which of these is the most important things to remember about emergency braking?

Question. To correct a rear wheel (drive wheel) braking skid, you should:

Question. While driving, ice builds up on your wipers and they no longer clean the windshield. You should:

Question. The road you are driving on becomes very slippery due to glare ice. Which of these is a good thing to do in such a situation?

Question. You must park on the side of a level. straight, two lane road. Where should you place the three reflective triangles?

Question. You are driving in the right lane of a four lane, undivided road, you come over a hill and find a car stopped ahead in your lane. You do not have room to stop, and the hill blocks your view to the rear. Which of these is most likely the best action to take?

Question. You are checking your tires for a pre-trip inspection. Which of these statements is true?

Question. The first step to take if your vehicle catches fire while driving is:

Question. Which of these statements about double clutching and shifting is true?

Question. The center of gravity of a load:

Question. You are testing the stopping action of the service brakes on a hydraulic system. Which of these can mean there is a problem?

Question. The distance you should look ahead of your vehicle while driving amounts to about ______ at highway speed.

Question. Which of these statements about tires and hot weather driving is true?

Question. You are driving a 40 foot vehicle at 35 MPH. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe?

Question. A moving vehicle ahead of you has a red triangle with an orange center on the rear. What does this mean?

Question. Which of these statements about drinking alcohol is true?

Question. On which fires can you use the "ABC" fire extinguisher?

Question. Which of these statements about speed management is true?

Question. Cargo that can shift should have at least tie downs.

Question. If a straight vehicle (no trailer or articulation) goes into a front wheel skid it will:

Question. Which of these is a proper use of vehicle lights and flashers?