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Free District of Columbia CDL General Knowledge Practice Test 2023

You are looking for actual practice for your coming CDL test? So you have come to the right place. Our DC General Knowledge Practice Test has the same questions as the real exam which is based on the DC CDL Manual. Our test covers most of the subject areas on the District of Columbia General Knowledge Test such as shifting techniques, railroad crossing safety, drunk driving laws, and much more to make you become a safer driver. In addition, each question has a detailed explanation that will help you understand the concept and answer future questions about it correctly. If you don't get the pass right away, don't worry, you can take this DC CDL practice test an unlimited number of times to make sure you learn all the questions. Our tests will refine your driving knowledge so you can earn your CDL and start driving on the roads. Let’s take our free CDL practice test now!

Our CDL practice tests:
Based on 2021 DC commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
DC CDL General Knowledge Test format:
50 questions
40 correct answers to pass
80% passing score
Study now
List of questions
1.
A vehicle is loaded with very little weight on the drive axle. What may happen?
2.
Which of these is NOT a good thing to do when driving on slippery roads?
3.
The driver is responsible for all of the following, EXCEPT for:
4.
What does HOS stand for?
5.
Perception distance is the distance your vehicle travels from the time:
6.
Which of these is true about driving in a tunnel?
7.
The primary cause of fatal crashes is:
8.
The North American Cargo Securement Standard cover vehicles weighing:
9.
Which of the following is not a method of securing side-by-side cargo?
10.
The maximum weight limit on a single axle is:
11.
Implied consent means:
12.
On which of the below logs did a violation occur?

Day 1



Day 2

13.
What does DOT stand for?
14.
How many tiedowns are required on a stack of shortwood loaded crosswise?
15.
When securing metal coils with eyes vertical, the angle between tiedown and deck, if possible, should be:
16.
When securing concrete pipe with a diameter up to 45 inches loaded crosswise as a group,lengthwise tiedowns should be either one 1/2 in chain or wire rope, or:
17.
When you sight-side back your vehicle into an alley stopping as close as possible to the rear of the alley it is called:
18.
A hazmat endorsement will be denied or canceled if:
19.
Another name for 'skid', a platform or tray on which cargo is placed so that it can be handled as an article.
20.
You should wear a seat belt in a moving vehicle:
21.
How many violations occur on the below example?
Day 1

Day 2
22.
Adding or burning off fuel will mainly change the amount of weight on which axles?
23.
You are driving a truck with a manual transmission. What gear will you probably have to use to take a long, steep downhill grade?
24.
If you cannot see the driver of a vehicle, then:
25.
A school bus endorsement is required in order to transport:
26.
What affect will sliding the trailer tandems forward have on the weight distribution?
27.
You should use your mirror to check?
28.
Specific suspension problems that drivers should look for include which of the following:
29.
A waterproof sheet used to cover cargo is a:
30.
.5g is equal to what?
31.
What is a cab shield?
32.
After starting the engine:
33.
A friction mat is used to:
34.
Which statement about EOBR's is true?
35.
Where should the ignition key be during the pre-trip inspection?
36.
In order to perform the in-cab and gauge inspection, which of the following must be done?
37.
Specific examples of vehicles which drivers should pay close attention to as possible hazards include:
38.
When securing metal coils in a sided vehicle without anchor points:
39.
When you are parked on the side of the road at night you must:
40.
Which of the following techniques will not change the weight distribution across your axles?
41.
What should you do when your vehicle hydroplanes?
42.
Stab braking should not be used on vehicles with:
43.
Given that general cargo securement requires a WLL of at least 50% of cargo weight, how many 11mm wire rope tiedowns would be required for a load of 26,000 lbs?
44.
If you hear on the radio that there is a major snowstorm forecast along your route, will you qualify for the Adverse Driving Conditions Exception?
45.
What violation occurs in the example below?
Day 1
46.
A container chassis vehicle, by definition, is:
47.
To avoid being blinded by glare when driving at night, drivers should:
48.
The narrowest end of a boulder should be pointed:
49.
You should avoid driving through deep puddles or flowing water. But if you must, which of these steps can help to keep your brakes working?
50.
The term 'edge protector' refers to:
District-of-columbia Pre-Trip TestDistrict-of-columbia Hazmat TestDistrict-of-columbia School Bus TestDistrict-of-columbia Air Brake TestDistrict-of-columbia General Knowledge TestDistrict-of-columbia Combination Vehicles TestDistrict-of-columbia Doubles/ Triples Trailers TestDistrict-of-columbia Tanker Vehicles TestDistrict-of-columbia Passenger Vehicles Test