CDL Practice Tests: Flatbed Cargo Securement

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Question #719 (1 of 10)

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What is the minimum weight of a load of metal coils that requires specific securement practices?

  • It depends on the size of the coils.
  • 50,000 lbs
  • 5,000 lbs
  • 2,268 lbs
Size of coil

All metal coil shipments that, individually or together, weigh 2,268 kg (5,000 lb.) or more must be secured according to the specific requirements in this section.

Exception: Metal coils that weigh less than 2,268 kg (5,000 lb.) may be secured according to general securement requirements.

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Question #786 (2 of 10)

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Cargo securement for a load weighing 37,000 lbs must be able to withstand a minimum forward braking force of:

  • 29,600 lbs
  • 7,400 lbs
  • 10,000 lbs
  • 18,500 lbs

How well must the securement system work? (Section 1.3)

Each cargo securement system must be able to withstand a minimum amount of force in each direction.

  • Forward Force = 80% of cargo weight when braking while driving straight ahead.
  • Rearward Force = 50% of cargo weight when accelerating, shifting gears while climbing a hill, or braking in reverse.
  • Sideways Force = 50% of cargo weight when turning, changing lanes, or braking while turning.
  • Upward Force = 20% of cargo weight when traveling over bumps in the road or cresting a hill.
    • This requirement is satisfied when the cargo is "Fully Contained."
37,000 x 80% = 29,600 lbs.
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Question #795 (3 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 cleat.
  • Void filler.
  • A chock.
  • A friction mat.

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 #720 (4 of 10)

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When securing a single metal coil with eyes vertical:

  • Attach at least one tiedown diagonally across eye of coil from left side of vehicle to right side of vehicle.
  • These are all requirements.
  • Attach at least one tiedown over eye of coil from side-to-side.
  • Attach at least one tiedown diagonally across eye of coil from right side of vehicle to left side of vehicle.

To prevent the coil from tipping forward, rearward, and sideways, arrange tiedowns to include the following:

  • Attach at least one tiedown diagonally across eye of coil from left side of vehicle to right side of vehicle.
  • Attach at least one tiedown diagonally across eye of coil from right side of vehicle to left side of vehicle.
  • Attach at least one tiedown over eye of coil from side-to-side.
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Question #771 (5 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?

  • 5
  • 2
  • 3
  • 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 #805 (6 of 10)

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A dunnage bag is:

  • A transverse load bearing structural component, particularly a part of a log bunk.
  • 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 structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.
  • A waterproof sheet used to cover cargo.

Dunnage bag:

An inflatable bag intended to fill otherwise empty space between articles of cargo, or between articles of cargo and the wall of the vehicle.

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Question #759 (7 of 10)

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What is the minimum WLL required of tiedowns securing loaded intermodal containers on non-chassis vehicles?

  • It depends on the length of the container.
  • 50% of the loaded weight of the container.
  • 20% of the loaded weight of the container.
  • 80% of the loaded weight of the container.

Secure each container to the vehicle by:

  • Either chains, wire ropes, or integral devices that are fixed to all lower corners.
  • Or crossed chains that are fixed to all upper corners.
  • Or both.

Secure the front and rear of the loaded container independently.

Secure the four corners using tiedowns that are attached to the loaded container.

The tiedowns must have an aggregate working load limit of at least 50% of the loaded weight of the loaded container.

Attach each chain, wire rope, or integral locking device to the container in a manner that prevents it from becoming unfastened while in transit.

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Question #749 (8 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?

  • 15
  • 3
  • 6
  • 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 #762 (9 of 10)

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Requirements for securing heavy vehicles, equipment, and machinery apply at what weight?

  • More than 10,000 lbs
  • 50% the weight of the trailer
  • Less than 10,000 lbs
  • More than 4,500 lbs

What Does This Section Cover?

The requirements in this section apply to the transportation of heavy vehicles, equipment, and machinery that:

  • Operate on wheels or tracks, such as front end loaders, bulldozers, tractors, and power shovels.
  • Individually weigh more than 4500 kg (10,000 lb.).
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Question #796 (10 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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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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