CDL Practice Tests: Flatbed Cargo Securement

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Question #805 (1 of 10)

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A dunnage bag is:

  • A transverse 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.
  • 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 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 #790 (2 of 10)

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Load securement for cargo weighing 29,650 lbs must be able to withstand upward force of how many lbs?

  • 5,930 lbs
  • 30,000 lbs
  • 29,650 lbs
  • 14,825 lbs
How strong must the vehicle structure and anchor points be?

All elements of the vehicle structure and anchor points must be strong enough to withstand the forces described on page 7.

  • Forward force: 0.8 g (80%)
  • Rearward force: 0.5.g (50%)
  • Sideways force: 0.5 g (50%)
  • Upward force: 0.2 g (20%)
29,650 x 20% = 5,930
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Question #753 (3 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
  • Rearward
  • Straight up and down.
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 #707 (4 of 10)

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All of the following are requirements for dividing vehicles over 33ft except:

  • Vehicle must be equipped with center stakes or comparable devices.
  • Each tiedown must be fastened below the logs on each side of the center stake.
  • Vehicle must be divided by center stakes into sections of staggered length.
  • Each tiedown must secure the highest log on each side of the center stake.
Requirements for dividing vehicles over 10m (33 ft)

Vehicles over 10 m (33 ft) must be equipped with center stakes, or comparable devices, to divide it into sections of equal length.

Each tiedown must:

  • Secure the highest log on each side of the center stake.
  • Be fastened below these logs.
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Question #734 (5 of 10)

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What is the minimum securement requirement for paper rolls with eyes vertical with a width between 1.25 and 1.76 its diameter?

  • Banding them together.
  • Tiedowns.
  • Friction mats alone.
  • All of these are required.
Situation #4
  • A paper roll or the forwardmost roll(s) in a group of paper rolls is not prevented from tipping or falling forward by vehicle structure or other cargo.
  • Paper roll width is more than 1.25 times and less than 1.76 times its diameter.
  • Only friction mats are used for forward securement.
Solution #4:

The friction mat alone is adequate. The friction mat allows the roll to slide on the floor without tripping the roll.

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Question #773 (6 of 10)

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When loading and securing a boulder, it should be:

  • Supported on at least 2 pieces of 4in x 4in hardwood blocking, extending the full width of the boulder.
  • All of these are requirements.
  • Placed on symmetrical hardwood blocking that extends 3/4 of the length 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 #691 (7 of 10)

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What is the minimum number of tiedowns to use on a load 4ft 7in long, and weighing 1,237 lbs?

  • 2
  • 4
  • 3
  • 1
  • If load is 5ft or shorter, 1,100 lbs or lighter:

    Minimum number of tiedowns: 1

  • If load is 5ft or shorter, over 1,100 lbs:

    Minimum number of tiedowns: 2

  • If load is more than 5ft but less than 10ft:

    Minimum number of tiedowns: 2

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Question #731 (8 of 10)

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When securing rolls of paper with eyes vertical, how many points of contact are required to consider a roll secure?

  • 1
  • 3
  • 2
  • 4

Usually the roll is secure if a paper roll has 3 well-separated points of contact with the vehicle, other rolls, or other cargo.

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Question #711 (9 of 10)

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All of these are requirements for securing longwood lengthwise except:

  • Each end of the log should extend at least 3 inches beyond the stakes.
  • Must be cradled in two or more bunks or contained by stakes.
  • Secure each log with at least two tiedowns if shorter logs are carried on top of the stack.
  • Each outside log should bear against at least two stakes, one near each end of the log.
Requirements for securing longwood loaded lengthwise
  • Longwood must be cradled in two or more bunks or contained by stakes.
  • Each outside log should bear against at least two stakes, one near each end of the log.
  • Each end of the log should extend at least 0.15 m (6 in) beyond the stakes.
  • If shorter logs are carried on top of the stack, secure each log with at least two tiedowns.
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Question #723 (10 of 10)

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Methods to keep a cradle from sliding include:

  • These can all be used.
  • Friction mats under the cradle.
  • Nailed wood blocking or cleats.
  • Placing a tiedown around the front of the cradle.
Requirements for securing a single coil

Prevent the coil from rolling by supporting it:

  • Timbers, chocks, or wedges held in place by coil bunks or similar devices to prevent them from coming loose.
  • A cradle (for example, two hardwood timbers and two coil bunks) that is restrained from sliding by:
    • Friction mats under the cradle.
    • Nailed wood blocking or cleats.
    • Placing a tiedown around the front of the cradle.
  • The support must:
    • Support the coil just above the deck.
    • Not become unintentionally unfastened or loose in transit.
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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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