District Of Columbia CDL DMV Endorsement Passenger 1

If you aren't sure that you have space for your vehicle to safely fit underneath an overhead object, slow down and seek an alternate route if possible.

To avoid hitting someone or something behind you, it is important to ensure that your vehicle does not roll backwards when starting from a stop. If your vehicle has a manual transmission, partly engage the clutch before taking your foot off the brake.

Before slowing down, it is a good idea to flash your brake lights by lightly tapping your brake pedal a few times. This will warn drivers behind you of your plans to slow down.

After the engine is started, the warning lights and buzzers should deactivate immediately. The charging circuit warning, oil, coolant, and Anti-Lock Braking System (ABS) lights should all turn off.

Bus accidents most commonly occur at intersections. Use special caution when driving where you may encounter an increased number of vehicles and pedestrians.

In bad weather, particularly when visibility is poor, it is common for automobile drivers to follow closely behind trucks. Open up the distance between your vehicle and the vehicle in front of you if you are being followed too closely.

When inspecting a trailer during a vehicle inspection test, ensure that its landing gear has no missing parts and that it is fully raised. The crank handle should be secure and the support frame should not be damaged.

A rollover happens as a result of a driver changing lanes or turning too quickly.

The restroom on a bus must be equipped with an emergency buzzer.

When inspecting a vehicle with power steering, you should inspect the hoses, pumps, and fluid levels. Specifically check the hoses for leaks.

The only effective way to deal with drowsiness while driving is to stop and sleep. Caffeine or other stimulant drugs may help you stay awake, but they will not keep you alert. You will likely end up being even more tired when the artificial stimulants begin to wear off.

During the on-road driving skills test, you may be asked to drive on an expressway. Make sure you maintain proper lane positioning, vehicle spacing, and vehicle speed. Continue to thoroughly check traffic in all directions while on the expressway.

Hazardous materials must be diamond-shaped and a size of at least 10 ¾ square inches.

You should never rely only on warning signals to alert you to an approaching train. Never try to race a train to a crossing. If there are multiple tracks at a crossing, be sure to check all tracks in both directions before starting to cross.

Maneuvers that may be included in the basic vehicle control skills test include straight line backing, offset back/right parking, offset back/left parking, driver side parallel parking, conventional parallel parking, and alley docking.

When driving a bus, be aware of how quickly it can accelerate and much space it takes up on the roadway. Always wait for a gap in traffic that is large enough to accommodate your vehicle before you leave a stop.

Any foreign object on the road is potentially dangerous. For example, something seemingly harmless, such as a cardboard box or paper sack, could contain a hard or heavy object that could do serious damage to a vehicle.

When stopped at a railroad crossing, a bus driver should open the forward door if it will improve their ability to see or hear an approaching train.

When approaching your vehicle to conduct an inspection, you should look underneath it to make sure there are no fresh oil, coolant, grease, or fuel leaks on the ground. Leaks can indicate unsafe defects on a vehicle.

Always drive cautiously around a stopped bus. Passengers may cross in front of or behind it, and the bus may prevent them from seeing your vehicle.