CDL Practice Tests: Flatbed Cargo Securement

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Question #797 (1 of 10)

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What is a rub rail?

  • A platform or tray on which cargo is placed so that it can be handled as an article. (Same as "Skid")
  • 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.
  • A strip of material that may be used to unitize articles and is tensioned and clamped or crimped back upon itself. (same as "Strapping")

Rub Rail:

A rail along the side of a vehicle that protects the side of the vehicle from impacts.

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Question #753 (2 of 10)

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When securing concrete pipe over 45 inches loaded crosswise, which direction must the tiedowns on the rear half of the load run?

  • It doesn't matter.
  • Forward
  • Straight up and down.
  • Rearward
Requirements for securing the pipe

Secure each pipe with tiedowns through the pipe.

Run at least one tiedown through each pipe in the front half of the load. This includes the middle one if there are an odd number. The tiedown must run rearward at an angle not more than 45 with the horizontal when viewed from the side of the vehicle, whenever practicable.

Run at least one tiedown through each pipe in the rear half of the load. The tiedown must run forward at an angle not more than 45 with the horizontal when viewed from the side of the vehicle, whenever practicable. This holds each pipe firmly in contact with adjacent pipe.

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Question #811 (3 of 10)

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Define 'bolster':

  • 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 crosswise 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.

Bolster:

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

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Question #742 (4 of 10)

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Within the requirements for concrete pipe, which of these requires specific securement methods?

  • Concrete pipe that is grouped together into a single rigid article and may not roll.
  • Concrete pipe loaded cross-wise on a flatbed trailer.
  • Concrete pipe eyes vertical and concrete pipe loaded lengthwise.
  • Concrete pipe loaded in a sided vehicle or container.
What is exempt from these specific requirements?

Follow general cargo securement requirements (Section 2) when transporting the following pipe:

  • Concrete pipe that is grouped together into a single rigid article and may not roll.
  • Concrete pipe loaded in a sided vehicle or container.
  • Concrete pipe eyes vertical and concrete pipe loaded lengthwise.
What is covered under these specific requirements?

Any concrete pipe loaded crosswise on a platform trailer or vehicle that is not exempt.

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Question #814 (5 of 10)

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A chock is defined as:

  • A short piece of material, usually wood, nailed to the deck to reinforce blocking.
  • A tapered or wedge-shaped piece used to secure round articles against rolling.
  • 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.

Chock:

A tapered or wedge-shaped piece used to secure round articles against rolling.

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Question #759 (6 of 10)

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

  • 20% of the loaded weight of the container.
  • 50% of the loaded weight of the container.
  • It depends on the length 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 #729 (7 of 10)

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What is the minimum weight of a shipment of paper rolls that would require specific securement requirements?

  • It depends on how they're loaded
  • 5,000 lbs
  • 10,000 lbs
  • 2,268 lbs

The rules in this section apply to shipments of paper rolls, which individually or together, weigh 2268 kg (5000 lb.) or more.

Note: Shipments of paper rolls that weigh less than 2268 kg (5000 lb.), and paper rolls that are unitized on a pallet may either be secured in accordance this section or with the general cargo securement requirements

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Question #728 (8 of 10)

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When securing rows of coils, requirements include all of the following except:

  • Attach at least one tiedown over the top of each coil or side-by-side row, located near the front of the coil.
  • Use blocking or friction mats to prevent forward movement.
  • Attach at least one tiedown over the top of each coil or side-by-side row, located near the rear of the coil.
  • Attach at least one tiedown through the center of each row of coils.
Tiedowns

Attach at least one tiedown over the top of each coil or side-by-side row, located near the front of the coil.

Attach at least one tiedown over the top of each coil or side-by-side row, located near the rear of the coil.

Use blocking or friction mats to prevent forward movement.

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Question #763 (9 of 10)

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Securing heavy vehicles or equipment with crawler tracks or wheel requires a minimum of how many tiedowns?

  • 6
  • 2
  • 4
  • It depends on the weight of the load

Special Circumstances: Securing Heavy Vehicles, Equipment, or Machinery with Crawler Tracks or Wheels

Tiedown requirements
  • Restrain cargo using a minimum of four tiedowns, each having a WLL of at least 2,268 kg (5,000 lb.).
  • Prevents cargo movement in the side-to-side, forward, rearward, and vertical directions.
  • Attach tiedowns:
    • Either at the front and rear of the vehicle.
    • Or at the mounting points on the vehicle designed for that purpose.
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Question #736 (10 of 10)

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When securing paper rolls with friction mats as a primary method:

  • Make sure friction mats are completely covered by the roll.
  • The friction mat should stick out from underneath the roll in the direction it is providing securement.
  • All of these answers.
  • The friction mat should stick out from underneath the roll in the opposite direction for which it is providing securement.
Requirements for friction mats

If a friction mat is used to provide the principal securement for a paper roll, insert the friction mat so that it sticks out from beneath the footprint of the roll in the direction in which it is providing securement.

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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.

cargo-securement

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