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
What is the minimum weight of a shipment of paper rolls that would require specific securement requirements?
How do you stop a front-wheel skid?
What is the minimum WLL of each tiedown used to secure crushed or flattened vehicles?
A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo is a:
All of the following are requirements for dividing vehicles over 33ft except:
Which of the following can be used as part of the cargo securement system?
When making a left turn, you should do which of the following?
Applying the brakes repeatedly on a downgrade to reduce speed 5 mph below your target is called:
When approaching a railroad crossing, which of these safety precautions applies?
Retreaded, recapped, or regrooved tires are allowed on the front wheels of a bus when?
To test for leaks on hydraulic brake systems:
Besides prescription drugs verified by a doctor as safe for driving, what other drugs are acceptable while driving?
Which of the following are not a primary factor affecting weight distribution across the axles?
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: 12,300 pounds
drive axles: 33,100 pounds
Weight transfer: 500 pounds per hole
For safer night time driving, windshields and mirrors should be:
What is the minimum amount of rearward force that a cargo securement system must withstand?
If you load cargo into the overhang portion of the trailer, what will be the result?
Three serious traffic violations in a 3-year period will result in a CDL disqualification of:
Which of the following is not true of Working Load Limit (WLL)?
What is the minimum securement requirement for paper rolls with eyes vertical with a width between 1.25 and 1.76 its diameter?
Using the following numbers for your calculations, how much weight will come off your steer axle?

Miles per gallon: 7
Miles travelled: 280
Percenatage of fuel weight on steer axle: 80%
Distracted driving could be any of the following except:
EOBR's are required to automatically record which of the following?
In what circumstance can shortwood be treated as longwood?
Is the below example a completed 34 hour restart?
Day 1

Day 2
What is the minimum angle that indirect tiedowns must form with the vehicle?
What violation has occurred at 10:00 a.m. on Day 2?
Day 1

Day 2
What happens if an EOBR malfunctions?
Using 7 miles per gallon as your fuel mileage and 8 pounds per gallon for the weight of fuel, how much total fuel weight will you burn off in 210 miles?
Specific cargo securement rules on automobiles and light trucks apply to vehicles of what weight?
What is the minimum aggregate WLL of all tiedowns in a group of concrete pipe?
What is the WLL of a 1/2-inch Grade 70 tiedown?
Some common causes of vehicle fires are spilled fuel, improper fueling, under-inflated tires, and:
When parked on the side of a two-lane road carrying traffic in both directions, place warning devices:
Mirror adjustment can only be checked accurately when:
Vehicles should be equipped with all of the following emergency equipment except:
Working Load Limit (WLL)is defined as:
To adjust driving space to slippery conditions, all of the following are space considerations except:
All of the following are good tips to staying fit and ready to drive except:
Putting too much weight towards the rear may cause all of these except:
What is the minimum number of tie-downs to be used on flatbed cargo?
What can be the result of too much weight on the back of the trailer?
When securing a paper roll with a width that is more than twice its diameter, which of the following is not an acceptable method of securement to prevent tipping?
Your trailer has a 6 inch hole spacing in the tandem slider rail and your trailer tandems are 900 pounds overweight. What is the minimum number of holes you will have to slide the tandems to get the tandems within legal limits?
What is the minimum number of tiedowns required through the eye of a metal coil loaded crosswise?
What is the minimum WLL of a tiedown used to secure logs?
Where will the weight of fuel be distributed?
Improperly loaded or secured cargo:
According to the general rule, for how much space should you leave in front of your vehicle at speeds below 40 mph?
When securing paper rolls with eyes vertical in a sided vehicle all of the following are acceptable except: