Tennessee CDL DMV Endorsement Double 1
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Before a trip, you should check each slack adjuster after parking, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure that they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
During an inspection, ensure that the wheel bearing/seals are not leaking.
To reduce the risk of a rollover when pulling trailers, you should drive slowly when turning, drive slowly on curves, and generally steer gently and smoothly. When loading the trailers, you should keep the cargo as low to the ground as possible.
Once you have begun to drive after a tire has been changed, you should stop after a short distance to recheck the tightness of the lug nuts.
There are several reasons why driving at night is more difficult than driving during the day. It is more difficult for drivers to see hazards, the glare of headlights can affect drivers' vision, and there are more fatigued drivers on the road.
There may be a delay of a few seconds between the sound of a tire failing and the time that the vehicle is affected by the tire failure. Because of the short delay, a driver may initially believe that the sound came from another vehicle.
If you must drive slowly, you should use your emergency flashers to warn other drivers. Be sure that the use of emergency flashers is permitted by local laws.
You should tap your brakes and flash your brake lights to warn other drivers any time you plan to slow or stop where other drivers may not expect you to do so. Use this technique when stopping on the road to unload cargo or passengers.
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.
A burning tire should be cooled with water. A driver may need to use large quantities of water to properly cool the tire.
Slow down and be especially careful when driving in and around work zones, in places where the pavement drops off sharply at the edge of the road, when foreign objects are present on the road, and on freeway on- and off-ramps.
Distracted drivers perceive hazards on the road more slowly than drivers who are focused, or they do not perceive hazards at all.
An empty combination vehicle will come to a complete stop more slowly than a fully-loaded vehicle. The stiff suspension springs and strong brakes will have lower traction on a light trailer than they would if the vehicle carried more weight.
If your vehicle begins to hydroplane, do not apply the brakes. Instead, slow down by releasing the accelerator and pushing in the clutch. This will help you to regain traction.
If your trailer starts to skid while you are braking, you should release the brakes and allow them to begin to regain traction. Once its wheels have regained their grip on the road, the trailer will begin to straighten out and follow the tractor.
Stopping is not always the safest option when responding to an emergency while driving. It is usually safer to steer out of the way when attempting to avoid a crash.
When a vehicle is traveling on a downward slope, the force of gravity will cause its speed to increase.
For the safety of everyone on the road, it is essential that you maintain adequate cushions of space between your vehicle and other vehicles. This will help ensure that if you need to stop your vehicle, you will be able to do so without hitting someone else.
If your vehicle gets stuck on railroad tracks, immediately exit the vehicle and get away from the tracks. Check signs or signal housing at the crossing for emergency contact information. Call the emergency contact or call 911.
An Anti-Lock Braking System (ABS) helps prevent wheels from locking up during a hard application of brakes.
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