Void filler is:

• A tapered piece of material, thick at one end and thin at the other, used to help keep cargo from moving.
• Material used to fill a void between articles of cargo and the structure of the vehicle that has sufficient strength to prevent movement of the articles of cargo.
• A structure, device, or another substantial article placed against an article to prevent it from tipping that may also prevent it from shifting.
• A device placed between the deck of a vehicle and car or between articles of cargo, intended to provide greater friction than exists naturally between these surfaces.

When you drive a tractor-trailer combination with ABS, you should brake as you always have. In other words:

• All of these are correct
• Use only the braking force necessary to stop safely and stay in control.
• Brake the same way, regardless of whether you have ABS on the tractor, the trailer, or both.
• As you slow down, monitor your tractor and trailer and back off the brakes (if it is safe to do so) to stay in control.

When securing concrete pipe over 45 inches loaded crosswise, which direction must the tiedowns on the front half of the load run?

• Straight up and down
• Rearward
• It doesn't matter
• Forward

Which of the following actions might indicate that a driver is a tourist and may not be paying attention to you while driving in an unfamiliar area?

• All of these actions might indicate that a driver is a tourist and may not be paying attention
• Looking at street signs
• Using brakes often
• Driving very slowly

Which of the following are true about the pressure relief valve in an air brake system?

• All these are correct
• Protects the tank and the rest of the system from too much pressure.
• If it releases air, something is wrong. Have the fault fixed by a mechanic.
• Is normally set to open at 150 psi

Approximately how far before a railroad crossing should you activate the school bus hazard lights to warn people you are stopping?

• 50 ft
• 200 ft
• 500 ft
• 1000 ft

How many tie-downs should the cargo have?

• One tie-down for every 20 feet of cargo. No matter how small the cargo, it should have at least two tie-downs.
• Two tie-down for every 20 feet of cargo. No matter how small the cargo, it should have at least three tie-downs.
• Two tie-downs for every 10 feet of cargo. No matter how small the cargo, it should have at least three tie-downs.
• One tie-down for every 10 feet of cargo. No matter how small the cargo, it should have at least two tie-downs.

What is the number one cause of injury and death in roadway work zones?

• Speeding traffic
• Rain or snow
• Inattentive construction workers
• Heavy traffic

To find out if the shipment includes hazardous materials, look at the shipping paper. What should it have?

• A hazard class label, proper shipping name, or identification number on the package
• All these are indications of hazardous materials
• A highlighted entry or one with an “X” or “RQ” on the shipping papers in the hazardous materials column
• An entry on the shipping papers with a proper shipping name, hazard class, and identification number

Which of the following is true about brake adjustment?

• Brakes out of adjustment will stop doing their share before those that are in adjustment. The other brakes can then overheat and fade, and there will not be enough braking available to control the vehicle.
• Brake fade is affected by the adjustment of the brakes
• All of these are correct
• To safely control a vehicle, every brake must do its share of the work

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