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.
  • Void filler.
  • A cleat.
  • 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 #735 (2 of 10)

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If loading and securing paper rolls on a second layer:

  • Lay the second layer horizontally.
  • Make sure heavier rolls are on top.
  • Be sure the bottom layer extends to the front of the vehicle.
  • Stack the second layer at the back.
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 #806 (3 of 10)

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A container chassis vehicle is defined as:

  • A reusable, transportable enclosure that is especially designed with integral locking devices that secure it to a container chassis trailer to facilitate the efficient and bulk shipping and transfer of goods by, or between various modes of transport, such as highway, rail, sea, and air.
  • A specialized container, primarily used to contain and transport materials in the waste, recycling, construction/demolition, and scrap industries, which are used in conjunction with specialized vehicles, in which the container isloaded and unloaded onto a tilt frame body by an articulating hook-arm.
  • A vehicle especially built and fitted with locking devices for the transport of intermodal containers.
  • A structure, device, or another substantial article placed against an article to prevent it from tipping that may also prevent it from shifting.

Container Chassis Vehicle:

A vehicle especially built and fitted with locking devices for the transport of intermodal containers.

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Question #771 (4 of 10)

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

  • 2
  • 3
  • 5
  • 4
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.

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Question #775 (5 of 10)

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

  • Use only chain to secure large boulders.
  • 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.
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.

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Question #749 (6 of 10)

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When securing concrete pipe with a diameter up to 45 inches loaded crosswise as a group, a crosswise tiedown should be used every how many feet?

  • 3
  • 6
  • 15
  • 10
As a group

Place lengthwise tiedowns over the group of pipes:

Either one 13 mm (1/2 in) chain or wire rope,

Or two 10 mm (3/8 in) diameter chain or wire rope

Place one crosswise tiedown for every 3.0 m (10 ft) of load length.

Either attach the side-to-side tiedown through a pipe

Or pass the tiedown over both front-to-back tiedowns between two pipes on the top tier.

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Question #773 (7 of 10)

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When loading and securing a boulder, it should be:

  • All of these are requirements.
  • Placed on symmetrical hardwood blocking that extends 3/4 of the length of the boulder.
  • Supported on at least 2 pieces of 4in x 4in hardwood blocking, extending the full width of the boulder.
  • Placed on the vehicle with its largest or flattest side down.
Requirements

Place each boulder on the vehicle with its flattest and/or largest side down.

Support each boulder on at least two pieces of hardwood blocking (at least 10 cm x 10 cm (4 x 4 in) that extend the full width of the boulder.

Place hardwood blocking pieces as symmetrically as possible under the boulder so they support at least 3/4 of the length of the boulder.

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Question #811 (8 of 10)

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Define 'bolster':

  • A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo.
  • An inflatable bag intended to fill otherwise empty space between articles of cargo, or between articles of cargo and the wall of the vehicle.
  • A crosswise load bearing structural component, particularly a part of a log bunk.
  • A structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.

Bolster:

A crosswise load bearing structural component, particularly a part of a log bunk.

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Question #796 (9 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 maximum weight of a load of rocks that a securement device can withstand.
  • The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.

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 #738 (10 of 10)

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When loading paper rolls with eyes horizontal, which of the following is not a requirement for stacking a second layer:

  • All the wells in the layer beneath must be filled
  • The bottom layer must extend all the way to the front.
  • Place second layer with eyes vertical.
  • It must be blocked against an eye-vertical blocking roll resting on the floor of the vehicle that is at least 1.5 times taller than the diameter of the roll being blocked.
Requirements for eyes crosswise: secure stacks of paper rolls from front-to-back movement
  • Do not load paper rolls on a second layer unless the bottom layer extends to the front of the vehicle.
  • Load paper rolls on higher layers only if all wells in the layer beneath are filled.
  • Secure the foremost roll in each upper layer (or any roll with an empty well in front of it) against forward movement:
    • Either by placing it in a well formed by two rolls on the lower row whose diameter is equal to or greater than that of the roll on the upper row.
    • Or by banding it to other rolls.
    • Or by blocking it against an eye-vertical blocking roll resting on the floor of the vehicle that is at least 1.5 times taller than the diameter of the roll being blocked.
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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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