To Stop A Trailer Skid

A skid happens whenever the tires lose their grip on the road. This is caused by one of iv ways:

Over-braking - Braking too hard and locking upwards the wheels. Skids also can occur when using the speed retarder when the road is slippery.

Over-steering - Turning the wheels more than sharply than the vehicle tin turn.

Over-acceleration - Supplying too much power to the bulldoze wheels, causing them to spin.

Driving too fast - Virtually serious skids consequence from driving besides fast for road weather. Drivers who suit their driving to conditions do non over-advance and practice not have to over-restriction or over-steer from likewise much speed.

By far the most mutual skid is i in which the rear wheels lose traction through excessive braking or acceleration. Skids caused by acceleration usually happen on ice or snow. They tin can easily be stopped by taking your foot off the accelerator (if information technology is very slippery, push button the clutch in. Otherwise, the engine can keep the wheels from rolling freely and regaining traction).

Drive Bike Skids

Rear-wheel braking skids occur when the rear-bulldoze wheels lock. Because locked wheels have less traction than rolling wheels, the rear wheels ordinarily slide sideways in an attempt to "catch up" with the forepart wheels. In a motorcoach or straight truck, the vehicle will slide sideways in a "spin out." With vehicles towing trailers, a bulldoze-cycle sideslip tin can let the trailer push the towing vehicle sideways, causing a sudden jackknife (see Figure 2-xv).

Effigy 2-15
Tractor Jackknife

Exercise the following to right a bulldoze-wheel braking slip:

Cease braking - This will permit the rear wheels curlicue again and proceed the rear wheels from sliding whatever further. If on ice, push in the clutch to let the wheels turn freely.
Turn apace - When a vehicle begins to slide sideways, quickly steer in the direction you want the vehicle to go down the road. You must turn the wheel quickly.
Counter-steer - As a vehicle turns back on course, it has a trend to proceed correct on turning. Unless you turn the steering bicycle quickly the other style, you may observe yourself skidding in the opposite direction.

Learning to stay off the brake, plow the steering cycle quickly, push in the clutch and counter-steer in a skid takes a lot of practice. The best identify to go this practice is on a big driving range or "slip pad."

Front Wheel Skids

Most front-cycle skids are caused past driving as well fast for conditions. Other causes are lack of tread on the front tires, and cargo loaded so non plenty weight is on the forepart axle. In a front-cycle skid, the front end cease tends to get in a straight line regardless of how much y'all plow the steering wheel. On a very slippery surface, you may not exist able to steer around a curve or turn.

When a front end-wheel skid occurs, the only way to stop the skid is to let the vehicle slow down. Stop turning and/or braking and so hard. Slow down equally quickly as possible without skidding.

Test Your Cognition

Stopping is not always the safest thing to do in an emergency. Truthful or Faux?
What are some advantages of going right instead of left effectually an obstacle
What is an escape ramp?
If a tire blows out, yous should put the brakes on hard to stop rapidly. True or False?

These questions may be on the written exam. If you cannot answer all of them, report Sections 2.fifteen and 2.sixteen.

ii.17 Blow Procedures

When you are in an accident and non seriously hurt, y'all need to act to prevent further impairment or injury. The basic steps to be taken at any accident are:

Protect the area.
Notify authorities.
Assist the injured.

Protect the Area

The offset thing to practice at an accident scene is to keep some other accident from happening at the aforementioned spot.

If your vehicle is involved in the accident, try to become it to the side of the road. This will assistance prevent some other accident and permit traffic to move.
If you lot are stopping to help, park away from the accident. The surface area immediately around the accident will exist needed for emergency vehicles.
Put on your flashers.
Gear up out reflective triangles to warn other traffic. Make sure they can exist seen past other drivers in time for them to avoid the accident.
Practice not put road flares on the basis near wrecked vehicles. Route flares could ignite any leaking flammable liquids.

Notify Authorities

If you have a CB, put out a call over the emergency channel before you become out of your vehicle. If not, wait until after the accident scene has been properly protected, so telephone or send someone to phone the police force. Attempt to determine where you are and so yous tin can give the exact location.

Help the Injured

If a qualified person is at the accident and helping the injured, stay out of the way unless asked to help. Otherwise, do the best you can to assistance whatever injured parties:

Exercise not move a severely injured person unless the danger of fire or passing traffic makes it necessary.
Stop heavy bleeding past applying straight pressure to the wound.
Keep the injured person warm.

While you probably don't need to memorize these definitions, you lot should be familiar with the meaning of each.

This is a simple concept, simply one which comes up from time to time on the written exam. Just sympathize that to stop an acceleration skid, you need to have your foot off the accelerator.

A jackknife occurs because the trailer tires accept less traction than the tractor tires (or the tractor tires have less traction than the trailer tires). The only way to correct a truck or trailer jackknife is to somehow regain traction. This usually requires that y'all release the brakes and then the wheels can plough freely.

While you don't demand to memorize the below list, you should familiarize yourself with these concepts and exist prepared to respond questions virtually this on the written exam.

Some questions may exist asked about a front cycle skid and how to correct it.

This is very important! The beneath list should not only be memorized, but should be memorized in society. Questions nigh accident procedures are asked well-nigh very often on the written exam. You have to know what to do and in what order to exercise it. Report this until you accept the society memorized!

You lot should admittedly never move an injured person unless you are qualified to practice and then or the person'due south life is in immediate danger due to fire or passing traffic. The all-time thing you can do is protect and secure the accident scene and wait until professional help arrives.

CDL:

Commercial Driver's License (CDL)

A CDL is required to drive whatsoever of the post-obit vehicles:

Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle existence towed is in excess of ten,000 pounds.
Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing some other not in backlog of 10,000 pounds.
Any vehicle, regardless of size, designed to transport 16 or more persons, including the commuter.
Any vehicle required past federal regulations to be placarded while transporting hazardous materials.

OWI:

Operating While Intoxicated