GENERAL KNOWLEDGE

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General Knowledge Test

1 / 50

Which of these would not help if windshield covered with ice?

2 / 50

What is necessary to know to determine the alcohol concentration level for an individual?

3 / 50

The tread depth on a front steering wheels tires should be:

4 / 50

What is counter-steering?

5 / 50

Which of these would tell you that a shipment contains hazardous materials?

6 / 50

Why is it important to shift gear correctly?

7 / 50

Which of these should you not do in an emergency?

8 / 50

Which of these is NOT something you should do if your headlights are not working properly?

9 / 50

Why your vehicle speed naturally increases on a downgrade?

10 / 50

Which of these statements about downshifting is true?

11 / 50

You are checking your brakes and suspension system for a pre-trip inspection. Which of these statements is true?

12 / 50

Heavy vehicles often move slower than others do. Which of these is NOT a good rule to follow while driving a heavy vehicle?

13 / 50

When starting a bus on a level surface with good traction, often there is no need for:

14 / 50

Drivers of truck and tractor-trailers with cargo must check that the cargo is well secured within the first ___ miles of the trip.

15 / 50

Which of these tell you that the shipment contains hazardous materials?

16 / 50

In normal driving, some drivers use the hand valve before the brake pedal to prevent a  jackknife. Which of the statements is true?

17 / 50

The center of gravity of a load:

18 / 50

You are driving a heavy vehicle. You must exit a highway using an off-ramp that curves downhill. You should:

19 / 50

Which of these actions are not recommended for a left turn?

20 / 50

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

21 / 50

You do not have a hazardous materials endorsement on your commercial driver's license. You are asked to deliver hazardous materials in a placarded vehicle. You should:

22 / 50

You are driving a heavy vehicle with manual transmission. You have to stop the vehicle on the shoulder while driving on an uphill grade. Which of these is a good rule to follow when putting it back in motion?

23 / 50

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

24 / 50

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

25 / 50

Which of these is not required knowledge for a drive, who needs a hazardous material endorsement?

26 / 50

Which of these is the most important thing to remember about emergency braking?

27 / 50

When is it necessary to learn how a fire extinguisher works?

28 / 50

Implied consent means:

29 / 50

The distance that you should look ahead of your vehicle while driving amounts to about ___ miles at normal highway speed.

30 / 50

A full stop is required at a railroad crossing when:

31 / 50

You are inspecting hydraulic brakes. You should pump the brake pedal three times then apply firm pressure to the pedal for five seconds. If the brakes are working properly, the pedal should:

32 / 50

When you pass a vehicle the driver's manual suggests several things to do. Which of these is not one of them?

33 / 50

Which of these statements about overhead clearance is true?

34 / 50

Which of these statements about driving in areas with strong wind is true?

35 / 50

Which of these statements about speed management is true?

36 / 50

You must drive on a slippery road. Which of these is a good thing to do in such a situation?

37 / 50

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

38 / 50

Most serious skid results from:

39 / 50

The distance that you should look ahead of your vehicle while driving is about ____ at low speed.

40 / 50

Why is a damaged exhaust system is a danger?

41 / 50

What fires can be put out with water?

42 / 50

Which of these is a sign of tire failure?

43 / 50

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?

44 / 50

The engine brake effect is greater when the engine is Governed RPM, and the transmission is on a______ gear.

45 / 50

You should lightly apply your brakes to flash the brake light if:

46 / 50

Your vehicle will be put out of service if _____or more leaves in any leaf spring are damaged.

47 / 50

Which of these is a good thing to remember when crossing or entering traffic with a heavy vehicle?

48 / 50

What should you do before driving on mountains?

49 / 50

If you need to leave the road in a traffic emergency, you should:

50 / 50

You are driving on a two-lane road. An oncoming driver drifts into your lane and is headed straight to you. Which of these is most often the best action to take?

Your score is

The average score is 73%

0%

Each state requires that those seeking to obtain a CDL license must first pass a test of generalized trucking knowledge, it is required you ass the general knowledge test before proceeding to gain additional CDL endorsements. The CDL general knowledge test is a written test designed to assess your competence and level of trucking knowledge and covers the material presented any CDL handbook. The test covers all aspects of general trucking knowledge required to attain your CDL license including, driving safely, transporting cargo safely, and performing pre-trip vehicle inspections, air brakes, and passenger and combination vehicles.

Studying For and Passing the CDL General Knowledge Test

The material covered on the CDL general knowledge test is practically the same in every state to ensure that each CDL licensed driver is completely aware of the laws and requirements regardless of the license issuing state. Each driver wishing to successfully earn their CDL license must achieve an 80% passing score on the general knowledge test. 

 

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