To secure a cubic-shaped boulder, how many tiedowns are required, at minimum?

• 3
• 1
• 2
• 5

Special Circumstances: Securing a Cubic-Shaped Boulder

The securement of a cubic-shaped boulder must meet these requirements in addition to the other large boulder requirements in Section 13.

Secure each boulder individually with at least two chain tiedowns placed side-to-side across the vehicle.

Place tiedowns as closely as possible to the hardwood blocking used to support the boulder.

When using tiedowns to secure boulders, all of the following are requirements except:

• Tiedowns should be located in valleys or notches across the top of the boulder.
• Tiedowns must be arranged to prevent sliding across the rock surface.
• Boulders must be loaded as far back towards the rear as possible.
• Use only chain to secure large boulders.

Requirements

Use only chain to secure large boulders.

Tiedowns in direct contact with the boulder:

Should be located in valleys or notches across the top of the boulder

Must be arranged to prevent sliding across the rock surface.

In terms of cargo securement, what is a 'well'?

• A female housing fixed to the side or ends of a vehicle to receive a stake or peg, and may also be used as an anchor point.
• The depression formed between two cylindrical articles when they are laid with their eyes horizontal and parallel against each other.
• 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.
• A rail along the side of a vehicle that protects the side of the vehicle from impacts.

What is a headboard?

• A vertical barrier placed directly behind the cab of a tractor to protect the cab in the event cargo should shift forward.
• A transverse load bearing structural component, particularly a part of a log bunk.
• A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo.
• A vertical barrier across a vehicle to prevent forward movement of cargo.

What is the maximum angle recommended for tiedowns securing cement pipe loaded crosswise, relative to the deck?

• It doesn't matter
• 45 degrees
• 45-90 degrees
• 180 degrees

If the first pipe of a group in the top tier is not at the front of the tier beneath:

Attach an additional tiedown that runs rearward at an angle not more than 45 to the horizontal when viewed from the side of the vehicle, whenever practical.

Pass tiedown either through the front pipe of the upper tier or outside the front pipe and over both longitudinal tiedowns.

Requirements for securing two stacks of shortwood loaded side-by-side include:

• There is no space between the stacks of logs.
• The highest log is no more than 8 ft above the deck.
• At least one tiedown is used lengthwise across each stack.
• All of these are required.

Additional requirements securement for two stacks side-by-side

In addition to the requirements for shortwood loaded crosswise, load two stacks side-by-side so that:

• There is no space between the stacks of logs.
• The outside of each stack is raised at least 2.5 cm (1 in) within 10 cm (4 in) of the end of the logs or from the side of the vehicle.
• The highest log is no more than 2.44 m (8 ft) above the deck.
• At least one tiedown is used lengthwise across each stack.

Banding is:

• A combination of securing devices which form an assembly that attaches cargo to, or restrains cargo on, a vehicle or trailer, and is attached to anchor point(s).
• A strip of material that may be used to unitize articles and is tensioned and clamped or crimped back upon itself. (same as "Strapping")
• 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 device placed on the exposed edge of an article to distribute tiedown forces over a larger area of cargo than the tiedown itself, to protect the tie-down and/or cargo from damage, and to allow the tiedown to slide freely when being tensioned.

Working Load Limit (WLL)is defined as:

• The maximum load that may be applied to a component of a cargo securement system during normal service, usually assigned by the manufacturer of the component.
• The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.
• The acceleration due to gravity, 9.823 m/sec2 (32.2 ft/sec2).
• The number of hours that a tiedown can be used.

As part of their pre-trip cargo securement inspection, drivers should:

• All of these apply.
• Make sure cargo is properly secured.
• Check for anything that will obscure their vision.
• Inform carrier of any inadequate packaging.

What is bell pipe concrete?

• Pipe whose flanged end is of larger diameter than its barrel.
• Concrete used to make bell pipe.
• Pipe used to make concrete bells.
• Pipe whose flanged end is of smaller diameter than its barrel.

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