Review Questions - Click On The Picture To Begin...
These Questions Are From The Illinois CDL Manual
- If you lose sight of your helper, stop and get out to look
- Have the helper stand near the rear of the vehicle where you can see the helper
- Before you begin backing, work out a set of hand signals you both understand
- If you lose sight of your helper, keep moving back slowly and cautiously until the helper becomes visible again
Quote From Page 23 Of The CDL Manual:
Use a helper when you can. There are blind spots you cannot see. The helper should stand near the back of your vehicle where you can see them. Before you begin backing, work out a set of hand signals that you both understand. The most important signal to agree on is a signal for "stop". If you lose sight of your helper, you should stop immediately and get out of the truck to look.
During backing, a helper should only be used as an additional tool to backing safely. Never put 100% trust into the helper and when in doubt, always stop and get out to look.
- Vehicle must be divided by center stakes into sections of staggered length.
- Vehicle must be equipped with center stakes or comparable devices.
- Each tiedown must secure the highest log on each side of the center stake.
- Each tiedown must be fastened below the logs on each side of the center stake.
Quote From Page 3 Of The CDL Manual:
Requirements for dividing vehicles over 10m (33 ft)
Vehicles over 10 m (33 ft) must be equipped with center stakes, or comparable devices, to divide it into sections of equal length.
Each tiedown must:
- Secure the highest log on each side of the center stake.
- Be fastened below these logs.
- Get it repaired immediately
- Keep a daily log of the problem
- Let your dispatcher know
- Get it repaired after your next delivery
Quote From Page 22 Of The CDL Manual:
If you find anything unsafe during the pre-trip inspection, get it repaired immediately. Federal and state laws prohibit operating an unsafe vehicle.
- Air will continue filling the air holding tanks until the tanks rupture from excessive pressure
- Supply air will be sent to the service line instead of going to charge the trailer air tanks which means the trailer spring brakes will not release
- Supply air will cause all brakes to release and the truck will roll freely without any braking ability
- Newer vehicles automatically detect if the lines are crossed and will auto-correct itself
Quote From Page 73 Of The CDL Manual:
If you do cross the air lines, supply air will be sent to the service line instead of going to charge the trailer air tanks. Air will not be available to release the trailer spring brakes (parking brakes). If the spring brakes do not release when you push the trailer air supply control, check the air line connections.
- 25 to 75 feet
- 50 to 100 feet
- 10 to 20 feet
- 15 to 50 feet
Quote From Page 102 Of The CDL Manual:
Stop before a railroad crossing if your vehicle:
- Is placarded; or
- Carries any amount of chlorine; or
- Has cargo tanks, whether loaded or empty, used for hazardous materials. You must stop 15 to 50 feet before the nearest rail. Proceed only when you are sure no train is coming. Do not shift gears while crossing the tracks.
If there is a sign on the railroad crossing that says "exempt" or "abandoned" you do not need to stop but should still slow down and cross with caution.
- Less than 400ft of following distance
- Less than 12 seconds of following distance
- Less than 8 seconds of following distance
- Failure of a truck to leave sufficient distance for being overtaken by another vehicle
Quote From Page 9 Of The CDL Manual:
Following Too Closely:
- Following the vehicle ahead too closely.
- Failure of a truck to leave sufficient distance for being overtaken by another vehicle.
While the CDL manual specifically states "failure of a truck to leave sufficient distance for being overtaken by another vehicle" there are many scenarios in which a driver can be charged with following too closely. But that is the answer you'll most likely see if asked on an exam.
Following too closely is considered a serious traffic violation and carries with it additional consequences. Two serious traffic violations within a three-year period results in a two-month disqualification. Three serious traffic violations in the same period results in a four-month disqualification.
Following too closely is one of the most dangerous things you can do. Keeping plenty of following distance is absolutely critical to safe driving.
Quote From Page 74 Of The CDL Manual:
Newer trailers have spring brakes just like trucks and truck tractors. However, converter dollies and trailers built before 1975 are not required to have spring brakes. Those that do not have spring brakes have emergency brakes that work from the air stored in the trailer air tank. The emergency brakes come on whenever air pressure in the emergency line is lost. These trailers have no parking brake. The emergency brakes come on whenever the air supply knob is pulled out or the trailer is disconnected. But the brakes will hold only as long as there is air pressure in the trailer air tank. Eventually, the air will leak away, and then there will be no brakes. Therefore, it is very important for safety that you use wheel chocks when you park trailers without spring brakes.
It is extremely unlikely you will drive a trailer built before 1975, but for the written exam, you still may need to know that trailers built before 1975 were not required to have spring brakes.
- All of these statements are true
- Wet roads double the normal stopping distance
- Liquid surge may force your truck forward after you have already come to a complete stop
- Fully loaded tankers take longer to stop than empty ones
Quote From Page 85 Of The CDL Manual:
Stopping distance - Keep in mind how much space you need to stop your vehicle. Remember that wet roads double the normal stopping distance. Empty tank vehicles may take longer to stop than full ones.
- Vehicles that have anti-lock brakes have a yellow light near the driver's rear side of the vehicle with the letters ABS stenciled above the light
- If there is a malfunction in the ABS system, a yellow warning lamp will illuminate and stay on
- All trucks and trailers are required to be equipped with Anti-Lock brake systems
- Once the driver turns on the ignition, a yellow malfunction lamp on the instrument panel will light up, briefly indicating that the vehicle has anti-lock brakes
Quote From Page 67 Of The CDL Manual:
Vehicles that have anti-lock brakes have a yellow light near the driver's rear side of the vehicle with the letters ABS stenciled above the light. Once the driver turns on the ignition, a yellow malfunction lamp on the instrument panel will light up, briefly indicating that the vehicle has anti-lock brakes. This lamp will remain constant if there is a malfunction in the anti-lock brake system.
- The left-most lane
- The right-most lane
- The center lane
- It doesn't matter which lane you choose
Quote From Page 129 Of The CDL Manual:
During this part of the exam, you are expected to make regular traffic checks and maintain a safe following distance. Your vehicle should be centered in the proper lane (right-most lane), and you should keep up with the flow of traffic but not exceed the posted speed limit.
During the driving exam, if there is more than one lane, always try to be in the right lane. You may or may not continue this practice after passing your exams, but for the purpose of the CDL driving exam, you should always attempt to be in the right most-lane.