CDL Practice Tests: Flatbed Cargo Securement

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Question #795 (1 of 10)

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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 is:

  • A friction mat.
  • A cleat.
  • Void filler.
  • A chock.

Friction mat:

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.

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Question #723 (2 of 10)

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Methods to keep a cradle from sliding include:

  • Placing a tiedown around the front of the cradle.
  • These can all be used.
  • Friction mats under the cradle.
  • Nailed wood blocking or cleats.
Requirements for securing a single coil

Prevent the coil from rolling by supporting it:

  • Timbers, chocks, or wedges held in place by coil bunks or similar devices to prevent them from coming loose.
  • A cradle (for example, two hardwood timbers and two coil bunks) that is restrained from sliding by:
    • Friction mats under the cradle.
    • Nailed wood blocking or cleats.
    • Placing a tiedown around the front of the cradle.
  • The support must:
    • Support the coil just above the deck.
    • Not become unintentionally unfastened or loose in transit.
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Question #776 (3 of 10)

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Requirements for securing a non-cubic shaped boulder with a stable base include all of the following except:

  • Attach chains together at the intersection
  • Wrap chains around the circumference of the boulder.
  • Pass the tiedowns over the center of the boulder
  • Secure each boulder individually with at least two chain tiedowns forming an X pattern over the boulder.

Secure each boulder individually with at least two chain tiedowns forming an X pattern over the boulder.

Pass the tiedowns over the center of the boulder and attach them to each other at the intersection by a shackle or other connecting device.

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Question #726 (4 of 10)

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Option #3 for securing metal coils transported with eyes lengthwise includes all of the following except:

  • Attaching at least one tiedown over the top of the coil near the front of the coil.
  • Attaching at least one tiedown over the top of the coil near the rear of the coil.
  • Using blocking or friction mats to prevent forward movement.
  • Attaching at least two tiedowns through the center of the coil.
Tiedowns, Single Coil Option #3

Option #3 is the same as Options #1 and #2, except that the two tiedowns that attach through the eye of the coil are replaced with two tiedowns that pass over the front and the rear of the coil.

Attach at least one tiedown over the top of the coil near the front of the coil.

Attach at least one tiedown over the top of the coil near the rear of the coil.

Use blocking or friction mats to prevent forward movement.

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Question #688 (5 of 10)

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Which of the following is not a requirement of wood used as blocking or bracing?

  • It should be free of decay and structural defects.
  • It should be properly seasoned.
  • It should be painted.
  • Hardwood is recommended.

If wood is used:

  • Hardwood is recommended.
  • It should be properly seasoned.
  • It should be free from rot or decay, knots, knotholes, and splits.
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Question #705 (6 of 10)

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How many tiedowns are required on a stack of shortwood loaded crosswise?

  • 1
  • 2
  • 3
  • It depends on the weight
Tiedowns requirements

Use two tiedowns to secure one stack of shortwood loaded crosswise.

Attach the tiedowns to the vehicle frame at the front and rear of the load.

Position tiedowns approximately 1/3 and 2/3 of the length of the logs.

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Question #774 (7 of 10)

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Specific securement methods are required for boulders that:

  • Weigh more than 11,000 lbs, or have a volume of more than 2 cubic meters.
  • Have more than five distinct sides.
  • Weigh more than 5,000 lbs, or have a volume of more than 4 cubic meters.
  • Weigh more than 5,000 lbs, or have a volume of more than 1.25 cubic meters.
The requirements in this section apply to any piece of natural, irregularly shaped rock that:

Weighs more than 5,000 kg (11,000 lb.) or has a volume greater than two cubic meters

Is transported on an open vehicle or in a vehicle whose sides are not designed and rated for the transportation of boulders.

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Question #796 (8 of 10)

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Aggregate Working Load Limit 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.
  • 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).
  • The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.
  • The maximum weight of a load of rocks that a securement device can withstand.

Aggregate Working Load Limit:

The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.

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Question #735 (9 of 10)

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If loading and securing paper rolls on a second layer:

  • Make sure heavier rolls are on top.
  • Lay the second layer horizontally.
  • Stack the second layer at the back.
  • Be sure the bottom layer extends to the front of the vehicle.
Stacked Loads
  • Load paper rolls on a second layer only if the bottom layer extends to the front of the vehicle.
  • Prevent forward, rearward, or side-to-side movement:
    • Either by the same means required for the bottom layer
    • Or by the use of a blocking roll from a lower layer.
  • A roll in the rearmost row of any layer must not be raised using dunnage.
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Question #717 (10 of 10)

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When securing building materials, how many tiedowns are required for top tier bundles longer than 5 ft?

  • 0
  • 1
  • 2
  • It depends on weight

Tiedowns over the top tier of bundles with a minimum of 2 tiedowns over each top bundle longer than 1.52 m (5 ft).

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About The Flatbed Cargo Securement CDL Manual

Studying the flatbed cargo securement CDL manual is not a requirement for getting your CDL permit or license. It is required knowledge for flatbed drivers.

Some questions you should be able to answer for flatbed cargo securement:

  • What is the minimum Working Load Limit of a tiedown used to secure logs?
  • What is the minimum weight of a shipment of paper rolls that would require specific securement requirements?
  • When securing concrete pipe over 45 inches loaded crosswise, which direction must the tiedowns on the front half of the load run?
  • What is a cab shield?
  • When securing concrete pipe over 45 inches loaded crosswise, which direction must the tiedowns on the rear half of the load run?
  • What is a dunnage bag?
  • Who is responsible for inspecting securing devices and cargo within the first 50 miles?
  • How many tiedowns are required on a stack of shortwood loaded crosswise?
  • What is the minimum working load limit of each tiedown used to secure crushed or flattened vehicles?
  • Define 'bolster'
  • What is a hook-lift container?
  • When a tiedown is attached directly to the cargo, what is the ideal angle where it attached to the vehicle?

What is a securing device?

Any device specifically manufactured to attach or secure cargo to a vehicle or trailer:

  • Synthetic Webbing
  • Chain
  • Wire rope
  • Manila rope
  • Synthetic rope
  • Steel strapping
  • Clamps and latches
  • Blocking
  • Front-end structure
  • Grab hooks
  • Binders
  • Shackles
  • Winches
  • Stake pockets
  • D-rings
  • Pocket
  • Webbing ratchet
  • Bracing
  • Friction mat

What is a tiedown?

A combination of securing devices that forms an assembly that:

  • Attaches cargo to, or restrains cargo on a vehicle.
  • Is attached to anchor point(s).

Some tiedowns are attached to the cargo and provide direct resistance to restrain the cargo from movement.

Some tie-downs pass over or through the cargo. They create a downward force that increases the effect of friction between the cargo and the deck. This friction restrains the cargo.

Related Cargo Securement Terms That Every Driver Should Know:

  • Tiedown:

    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).

  • Contained:

    Cargo is contained if it fills a sided vehicle, and every article is in contact with or sufficiently close to a wall or other articles so that it cannot shift or tip if those other articles are also unable to shift or tip.

  • Blocking:

    A structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.

How should tiedowns be attached?

Tiedowns can be used in two ways:

  • Attached to the cargo:

    • Tiedowns attached to the vehicle and attached to the cargo.
    • Tiedowns attached to the vehicle, pass through or aroundan article of cargo, and then are attached to the vehicle again.

  • Pass over the cargo:

    • Tiedowns attached to the vehicle, passed over the cargo, and then attached to the vehicle again.

Tiedown placement:

Place the tiedown as close as possible to the spacer.

Position the tiedowns as symetrically as possible over the length of the article.

Position the tiedowns to preserve the integrity of the article.

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