This is the fourth of four different General Knowledge CDL practice tests that we offer. Please take all of our free practice tests to ensure that you score well on the big day! General Knowledge questions cover common topics involving the proper operation of a commercial vehicle and safe driving in general.
Our free General Knowledge CDL practice test #4 contains 10 questions. You may not skip any of the questions. There is no time limit on the test. For maximum practice, we highly recommend taking each of our free CDL practice tests at least once.
Our CDL practice test database contains hundreds of questions. If you need more practice or want to improve your score, click the ‘Restart Quiz’ button at the end of the test. The questions will be presented in a different order but they’ll be the same questions you already answered. The second time around you should know the answers!
Feel free to retake this test as many times as you’d like. Once you receive your score there will be a button to View Questions. Wrong answers will be highlighted in red. The correct answer will be in a green box outlined in green.
Being the driver of a commercial vehicle is a huge responsibility. The written CDL test isn’t that bad. The actual driving test is rigorous. Inspectors do not want anyone on the road who isn’t capable of handling a big rig. Make sure you practice your driving and especially BACKING UP.
Congratulations on your decision to become a commercial driver!
General Knowledge CDL Practice Test 4
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Question 1 of 10
On a divided highway, where do you place the three reflector triangles?CorrectIncorrect
Question 2 of 10
What are the three factors of total stopping distance with hydraulic brakes?CorrectIncorrect
Question 3 of 10
If your vehicle hydroplanes you should __________.CorrectIncorrect
Question 4 of 10
Approximately how long does it take to stop a heavy vehicle traveling 55 mph on a dry, level road?CorrectIncorrect
Question 5 of 10
If traffic is moving at 35 mph in a 55-mph zone, what is your safest driving speed?CorrectIncorrect
Question 6 of 10
You must apply for a CDL __________.CorrectIncorrect
Question 7 of 10
Which of the following will mean failure to pass your CDL test?CorrectIncorrect
Question 8 of 10
According to the Commercial Motor Vehicle Safety Act, you must notify your employer within _____ days if you are convicted in another state of any traffic violation except a parking ticket.CorrectIncorrect
Question 9 of 10
According to the Commercial Motor Vehicle Safety Act, you must notify your motor vehicle licensing agency within _____ days if you are convicted in another state of any traffic violation except a parking ticket.CorrectIncorrect
Question 10 of 10
Commercial Driver’s Licenses may carry restrictions and endorsements, recognized by all jurisdictions. What is the endorsement code for Doubles/Triples?CorrectIncorrect