To prevent rolling, how many points of contact are required, at minimum, for a boulder resting on a rounded or partially rounded side?

• 3
• 2
• 4
• 5

Requirements

If the flattest side of the boulder is rounded or partially rounded, place the boulder in a crib made of hardwood fixed to deck of vehicle.

Boulder should rest on both deck and timber, with at least 3 well-separated points of contact that prevent rolling in any direction.

What should you do if you notice another driver is distracted?

• Give a distracted driver plenty of room and maintain your safe following distance.
• Slow down and stay in the right-hand lane
• Get off at the next exit or pull off the road at the next opportunity
• Flash your lights and hit your horn to "wake them up" so they'll pay attention

When securing metal coils with eyes vertical, the angle between tiedown and deck, if possible, should be:

• 180 degrees
• Between 60 and 90 degrees
• 60 degrees
• Less than 45 degrees

Ideally, where would you like the cargo's center of gravity located?

• About 10 feet to the rear the center point of the trailer
• Just slightly behind the tractor's drive axles
• Roughly centered between the steer axle and the trailer tandems
• Centered between your drive axles and your trailer tandems.

What is the primary reason ABS was invented?

• To apply enough braking force to lock up the tires when needed
• To add additional braking force to the system during emergency stops
• To lock the steering in a straight line during hard braking, preventing a possible jackknife
• To help you avoid wheel lock-up during hard braking and maintain control

If your ABS malfunctions:

• You have limited braking ability. Drive cautiously to the nearest service station for repairs
• You still have regular brakes. Drive normally, but get the system serviced soon.
• You have very little braking ability. Only drive with extreme caution until you can get safely off the road.
• You must not drive the truck until it can be repaired. Call a tow truck if necessary.

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

A bulkhead is defined as:

• A vertical barrier placed directly behind the cab of a tractor to protect the cab in the event cargo should shift forward.
• A vertical barrier across a vehicle to prevent forward movement of cargo.
• A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo.
• A structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.

Too little weight on the driving axles can:

• Cause the cargo in the trailer to shift forward, creating a dangerous situation
• Create a dangerous situation where the weight in the trailer is too far forward
• Cause poor traction. The drive wheels may spin easily.
• Make the front wheels lock up more easily under braking

You must stop for all railroad crossings EXCEPT when:

• Your vehicle has cargo tanks, whether loaded or empty, used for hazardous materials
• Your vehicle is placarded
• Your vehicle carries less than a reportable quantity of hazardous materials
• Your vehicle carries any amount of chlorine

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