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 chock.
  • Void filler.
  • A cleat.

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 #695 (2 of 10)

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What is the minimum Working Load Limit for the entire securement system?

  • 80% of cargo weight.
  • 50% of cargo weight.
  • 20% of cargo weight.
  • 100% of cargo weight.

Note: The minimum WLL requirement for the securement system is 50%. More tiedown capacity should be used if you need to secure an article against any movement.

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Question #709 (3 of 10)

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A stack of shortwood loaded lengthwise can be secured with one tiedown if:

  • All logs in the stack are less than 10 ft long.
  • They are blocked in the back by the vehicle's end structure or another stack of logs.
  • They are blocked in the front by a headboard or another stack of logs.
  • All of these apply.

One tiedown

A stack can be secured with one tiedown if all logs in the stack less than 3.04 m (10 ft) are:

  • Blocked in the front by a headboard strong enough to restrain the load or by another stack of logs.
  • Blocked in the rear by the vehicle's end structure or another stack of logs.
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Question #818 (4 of 10)

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What is the minimum aggregate WLL for a group of concrete pipe weighing 16,000 lbs?

  • 7,999 lbs
  • 10,000 lbs
  • 8,001 lbs
  • 5,000 lbs

General tiedown requirements

The aggregate working load limit of all tiedowns on any group of pipe must be more than half the total weight of all pipes in the group.

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Question #770 (5 of 10)

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The maximum distance from the rear allowed for attaching mechanisms used to secure roll-on/roll-off containers is:

  • 2 feet
  • It doesn't matter.
  • 6 1/2 feet
  • 3 feet

Attach mechanisms used to secure the rear end of a roll-on/roll-off or hook lift container no more than two meters (6.5 feet) from the rear of the container.

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Question #712 (6 of 10)

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Which of these are requirements for securement systems?

  • These all qualify as requirements.
  • If a tiedown would be subject to cutting or abrasion, edge protection should be used.
  • Components should be in proper working order.
  • There should be no knots in the tiedowns.
Requirements for Securement System:
  • In proper working order with no damaged or weakened components that affect their performance or reduce their working load limit.
  • No knots.
  • Attached and secured in a manner that prevents them from coming loose during transit.
  • Able to be tightened by a driver of an in-transit vehicle.
  • Located inboard of rub rails whenever practicable.
  • Edge protection must be used when a tiedown would be subject to abrasion or cutting.
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Question #776 (7 of 10)

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

  • Wrap chains around the circumference of the boulder.
  • Attach chains together at the intersection
  • 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 #778 (8 of 10)

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To secure a cubic-shaped boulder, how many tiedowns are required, at minimum?

  • 5
  • 2
  • 3
  • 1

Special Circumstances: Securing a Cubic-Shaped Boulder

The securement of a cubic-shaped boulder must meet these requirements in addition to the other large boulder requirements in Section 13.

Secure each boulder individually with at least two chain tiedowns placed side-to-side across the vehicle.

Place tiedowns as closely as possible to the hardwood blocking used to support the boulder.

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Question #805 (9 of 10)

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A dunnage bag is:

  • A waterproof sheet used to cover cargo.
  • A structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.
  • 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.

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 #807 (10 of 10)

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A bulkhead is defined as:

  • A structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.
  • A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo.
  • A vertical barrier placed directly behind the cab of a tractor to protect the cab in the event cargo should shift forward.
  • A vertical barrier across a vehicle to prevent forward movement of cargo.

Bulkhead:

A vertical barrier across a vehicle to prevent forward movement of 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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