Knowledge Test Class A #1
Class A Driving Test | District Of Columbia 2025 #1
Train for FREE online with our District Of Columbia class A license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a DC CDL class A permit in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class A requirements may vary from state to state.
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1 . To ensure you do not interfere with traffic while driving a heavy vehicle, you should:
Ride the brakes while driving downhill.
If the weight of your vehicle prevents you from matching the speed of surrounding traffic, you should stay in the right lane, if possible.
2 . If something is found to be unsafe during a pre-trip inspection, you should:
Not use the items found to be unsafe, but may continue driving normally.
If a pre-trip inspection reveals anything unsafe about your vehicle, you must get it repaired. It is illegal to operate an unsafe vehicle.
3 . When driving through fog, a driver should:
Drive on the shoulder.
If you must drive in fog, you should use your low beam headlights.
4 . You must put out emergency warning devices within ____ of stopping on the side of the road.
Two hours
If you must stop on the shoulder of a road, put out your emergency warning devices within 10 minutes of stopping. When pulling off the road to stop, be sure to turn on your four-way emergency flashers.
5 . Which factor does not have an impact on a person’s blood alcohol concentration (BAC)?
The temperature of the drinks
The three main factors that determine a person's blood alcohol concentration (BAC) are the amount of alcohol consumed, how quickly the alcohol is consumed, and the person's weight.
6 . Air brakes are:
A tool to improve fuel efficiency.
As long as the brakes are properly maintained, using air brakes is a safe and effective method of stopping large, heavy vehicles.
7 . Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when:
Driving uphill.
Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when air tank pressure falls to a level between 20 and 45 psi. You can do this by chocking the wheels and releasing air from the braking system by stepping on and off the brake pedal. Once the pressure drops to an unsafe level, the parking brake valve should pop out and spring brakes should come on.
2025 District Of Columbia | Frequently Asked Questions
In the District of Columbia, a CDL Class A license allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is over 10,000 pounds. This includes tractor-trailers, truck and trailer combinations, and flatbeds.
A Class A CDL license in the District of Columbia permits the holder to operate various types of larger, heavier commercial vehicles. This includes tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. The vehicles can have a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more if the towed vehicle is over 10,000 pounds.
To obtain a Class A CDL license in the District of Columbia, you must be at least 21 years old, possess a valid non-commercial driver's license, pass a vision test, and provide proof of residency and identity. You'll also need to pass written knowledge tests, obtain a Commercial Learner's Permit (CLP), and successfully complete a skills and road test.
In the District of Columbia, you must be at least 21 years old to qualify for a Class A Commercial Driver's License (CDL). This age requirement is consistent across all states and is set by federal regulation. This allows for interstate operation of commercial vehicles. For intrastate (within the same state), the minimum age can be 18.
Specific endorsements are not required for a Class A CDL license but they can provide additional driving privileges. These include endorsements for operating vehicles like school buses, passenger vehicles, tank vehicles, and vehicles carrying hazardous materials. Each endorsement requires passing specific knowledge and skills tests.
The Class A CDL skills test in the District of Columbia consists of three parts: the vehicle inspection test, the basic control skills test, and the road test. The vehicle inspection test involves checking the vehicle's safety components, the basic control skills test assesses your ability to maneuver and control the vehicle, and the road test evaluates your on-road driving skills.
Yes, limitations can be imposed on Class A CDL license holders in the form of restrictions. These are based on the driver's abilities or the type of vehicle they tested in. For example, if a driver takes the skills test in an automatic transmission truck, they will have an 'E' restriction, limiting them to automatic transmission vehicles only.
Yes, it is possible to take the written Class A CDL test in languages other than English in the District of Columbia. However, the Federal Motor Carrier Safety Administration requires all CDL holders to read and speak English sufficiently to converse with the general public, understand highway traffic signs and signals, respond to official inquiries and make entries on reports and records.
Yes, you can request accommodations for the Class A CDL written test in the District of Columbia due to disability. The DMV is committed to providing accessible services and accommodations to individuals with disabilities. You should contact the DMV directly in advance of your test to discuss your needs and the potential accommodations available.
If you don't pass the Class A CDL written test in the District of Columbia, you are allowed to retake it. However, you must wait three days before retaking the test. If you fail the test three times, you must wait 90 days before taking it again. There's also a retesting fee that applies each time.