CDL Practice Tests: Flatbed Cargo Securement

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Question #765 (1 of 10)

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Which of these is specifically prohibited when securing crushed or flattened vehicles?

  • Chains.
  • Wire rope.
  • Synthetic webbing.
  • Containment walls.
Securement Requirements

Transport flattened or crushed vehicles so that:

  • Cargo does not shift while in transit AND
  • Loose parts from the flattened vehicles do not dislodge and fall from the transport vehicle

Do not use synthetic webbing to secure vehicles.

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Question #817 (2 of 10)

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When securing a load of lengthwise longwood logs weighing 42,500 lbs, what is the minimum aggregate WLL required for tiedowns? (rounded up to nearest lb)

  • 21,250 lbs
  • 8,550 lbs
  • 7,085 lbs.
  • 10,000 lbs
Working load limit for longwood and shortwood loaded lengthwise

The aggregate working load limit for all tiedowns must be no less than 1/6 the weight of the stack of logs.

Note: This requirement is much less than the general requirement of an aggregate working load limit equal to 1/2 the weight of the load. This lowered requirement recognizes that the bunks/stakes help to prevent slippage.

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Question #766 (3 of 10)

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When securing flattened or crushed cars on a vehicle with containment on 2 sides, how many tiedowns, at minimum, are required?

  • 3
  • 2
  • 4
  • 1
Option 3:

Has containment walls on two sides that:

  • Extend to the full height of the load.
  • Block against cargo movement in the forward and rearward.

Secures each stack of vehicles with a minimum of three tiedowns, each having a minimum WLL of 2,268 kg (5,000 lb.).

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Question #722 (4 of 10)

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All of the following are requirements for transporting coils with eyes crosswise except:

  • Prevent the coil from rolling
  • These are all requirements
  • Attach one tiedown rearward
  • Attach one tiedown forward
There are three requirements for coils transported with eyes crosswise:

Prevent the coil from rolling

Attach one tiedown forward.

Attach one tiedown rearward.

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Question #735 (5 of 10)

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If loading and securing paper rolls on a second layer:

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

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A container chassis vehicle is defined as:

  • 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.
  • 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.

Container Chassis Vehicle:

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

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Question #703 (7 of 10)

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What is the minimum WLL of a tiedown used to secure logs?

  • It depends on if you are hauling shortwood or longwood
  • 50% of cargo weight
  • 4,000 lb
  • 1,800 lb
  • Use tiedowns in combination with bunks, stakes, or standards and bolsters to secure the load.
  • All tiedowns must have a working load limit not less than 1,800 kg (4,000 lb.).
  • Tension tiedowns as tightly as possible but not beyond their working load limit.
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Question #796 (8 of 10)

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Aggregate Working Load Limit is defined as:

  • 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.
  • 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 load that may be applied to a component of a cargo securement system during normal service, usually assigned by the manufacturer of the component.

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 #702 (9 of 10)

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In what circumstance can shortwood be treated as longwood?

  • When it is embedded in a stack of longwood.
  • Right after it is cut down.
  • When it is stacked long-ways on the trailer.
  • When it is painted green on the ends.
What's in a stack?

Some stacks may be made up of both shortwood and longwood. Any stack that includes shortwood must follow the shortwood securement requirements.

Exception: If shortwood is embedded in load of longwood, it can be treated as longwood.

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Question #761 (10 of 10)

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To satisfy general cargo securement requirements, what is the minimum WLL for securing vehicles under 10,000 lbs?

  • 50% of the weight of the cargo.
  • 10,000 lbs.
  • 30% of the weight of the cargo.
  • 4,500 lbs.

Note: More tiedowns may be required to satisfy the general cargo securement requirements. The Standard states: "The sum of the working load limits from all tiedowns must be at least 50% of the weight of the cargo."

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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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