Free District of Columbia CDL General Knowledge Practice Test 2022

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 2022 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
List of questions
You're loaded heavy with 1/2 tank of fuel onboard. Using the following numbers, where should you move the 5th wheel to get it setup properly?

steer axle: 10,800 pounds
drive axles: 34,700 pounds
Weight transfer: 500 pounds per hole
What violation has occurred on the below log?

How many days are you required to keep your completed logs?
A hook-lift container is:
You weigh the truck immediately before and after fueling. Based on the following, determine what percentage of the weight goes to each set of axles:

Before fueling:

steer: 10,200, drives: 31,300, gross: 71,700

After fueling:

steer:11,000, drives: 31,500, gross: 72,700

A row of metal coils loaded with eyes lengthwise requires how many direct tiedowns over each side-by-side row or coil?
Is there a 14 hour rule violation on Day 2?
Day 1

Day 2
When is it a good idea to use drugs to help you stay awake while driving?
An anchor point is defined as:
When you encounter a driver that appears to be distracted, you should:
When starting to move the truck, when is it acceptable to roll backwards?
In cargo securement, what is a 'cleat' defined as?
You're in Illinois which allows up to 20,000 pounds on the steer axle. You're heading to Indiana which only allows 12,000 on the steer axle. Your steer tires have a load rating of 6,500 pounds each. What is the maximum legal weight your steer axle can be for each of the two states?
Instead of stopping in an emergency, what is many times the safer action?
What is the Federal Standard for maximum weight on a tandem axle vehicle?
How many on duty hours are remaining after the following has been logged (use a scratch sheet of paper if you need to):
- On duty/not driving: 3 hours
- Driving: 4 hours
- Sleeper berth: 8 hours
- Driving: 7 hours
- Off duty: 2 hours
What is the main factor affecting the low-speed offtracking of a tractor trailer?
When driving, when is it acceptable to signal other drivers that it is safe to pass?
While driving through an intersection, you should:
What is the safe number to use in calculations for the weight of fuel?
A chock is defined as:
When starting in slippery conditions, you should:
Requirements for securing a non-cubic shaped boulder with a stable base include all of the following except:
How many violations have occurred on the below log?
When securing concrete pipe loaded crosswise, arrange the top tier:
Using controlled braking, brakes are applied as hard as possible:
Passing on the wrong side of the road, passing in a school zone, and driving the wrong way on a one-way street are all specific examples of:
Rust around wheel nuts may indicate what?
When loading bell pipe on one tier, all of the following apply except:
Good general shifting techniques for going down a long downgrade include:
A placarded vehicle must have how many identical placards?
What violations occurred in this example?
Day 1

Day 2
Any activity that draws your attention to something other than the task of driving is considered:
Based on the following figures, how much fuel can you legally add while remaining legal on the steer axle?

Load rating of steer tires: 6,150 pounds

Percentage of fuel weight to steer axle: 85%

Steer axle weight limit in states you're travelling: 20,000 pounds

Weight Before Fueling: Steer: 11,500, drives: 33,100, gross: 76,700

Under normal circumstances, what is the maximum allowed width for commercial vehicles?
What is a pallet used for?
HOS regulations were designed to do all of the following except:
What is the minimum aggregate WLL for a group of concrete pipe weighing 16,000 lbs?
A driver will generally be required to have a DOT medical card in order to drive which of the following:
You weigh the truck immediately before and after fueling. Based on the following, determine what percentage of the weight goes to each set of axles.

Before fueling:

steer: 11,450, drives: 33,100, gross: 76,700

After fueling:

steer:11,850, drives: 33,300, gross: 77,300

The condition of all in-cab controls should be checked for:
On what day and time does an 11 hour rule violation occur?
Day 1

Day 2

The definition for "shortwood" identifies pieces that are no longer than:
Sliding your 5th wheel will redistribute the weight mainly between which two sets of axles?
If you are able to exert 200 pounds of force against an object but you are only exerting 50 pounds of force to do so, what method are you applying to make this happen?
Most good drivers will look ahead:
Products that pose a risk to health, safety
and property during transportation are called:
If traveling slower than traffic flow on a grade, if legal you should:
A bulkhead is used:
Submitting fingerprints for a background check will be required for drivers applying for: