CDL Practice Tests: Flatbed Cargo Securement

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Question #773 (1 of 10)

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When loading and securing a boulder, it should be:

  • All of these are requirements.
  • Supported on at least 2 pieces of 4in x 4in hardwood blocking, extending the full width of the boulder.
  • Placed on the vehicle with its largest or flattest side down.
  • Placed on symmetrical hardwood blocking that extends 3/4 of the length of the boulder.
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 #749 (2 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?

  • 6
  • 3
  • 10
  • 15
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 #724 (3 of 10)

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When securing metal coils, it is acceptable to use nailed blocking or cleats as the sole means to secure:

  • Chocks
  • It is not acceptable.
  • Nailed wood cradles
  • Timbers

The use of nailed blocking or cleats as the sole means to secure timbers, chocks or wedges, or a nailed wood cradle, is prohibited.

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Question #748 (4 of 10)

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When securing concrete pipe up to 45 inches loaded crosswise, tiedowns through the pipe must be:

  • Nylon rope.
  • Chains
  • Straps.
  • Wire.
Tiedown requirements
  • Pipe may be secured individually or as a group.
  • Tiedowns through the pipe must be chains.
  • Front-to-back tiedowns may be chain or wire rope.
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Question #774 (5 of 10)

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Specific securement methods are required for boulders that:

  • Weigh more than 11,000 lbs, or have a volume of more than 2 cubic meters.
  • Have more than five distinct sides.
  • Weigh more than 5,000 lbs, or have a volume of more than 1.25 cubic meters.
  • Weigh more than 5,000 lbs, or have a volume of more than 4 cubic meters.
The requirements in this section apply to any piece of natural, irregularly shaped rock that:

Weighs more than 5,000 kg (11,000 lb.) or has a volume greater than two cubic meters

Is transported on an open vehicle or in a vehicle whose sides are not designed and rated for the transportation of boulders.

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Question #752 (6 of 10)

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When securing concrete pipe with a diameter of more than 45 inches loaded crosswise, how many tiedowns are required through each pipe at minimum?

  • It depends on the weight of the pipe.
  • 3
  • 1
  • 2
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 #731 (7 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 #755 (8 of 10)

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When loaded cement pipe over 45 inches in diameter, which pipes should be blocked, wedged, or otherwise immobilized?

  • Front and rear.
  • It depends on the weight of the load.
  • Rear only.
  • Front only.

Immobilize the front and rear pipe with on of the following methods:

  • Blocking
  • Wedges
  • Vehicle end structure
  • Stakes
  • Locked pipe unloader
  • Other equivalent means
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Question #787 (9 of 10)

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When calculating directional forces, 'g' is expressed 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.
  • 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.
  • The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.
  • The acceleration due to gravity, 9.823 m/sec2 (32.2 ft/sec2). For cargo securement purposes it is expressed as a percentage of cargo weight, i.e. .5g is 50% of force of gravity or 50% of cargo weight.

g:

The acceleration due to gravity, 9.823 m/sec2 (32.2 ft/sec2). For cargo securement purposes it is expressed as a percentage of cargo weight, i.e. .5g is 50% of force of gravity or 50% of cargo weight.

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Question #700 (10 of 10)

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As part of their pre-trip cargo securement inspection, drivers should:

  • Make sure cargo is properly secured.
  • Inform carrier of any inadequate packaging.
  • Check for anything that will obscure their vision.
  • All of these apply.

Driver inspection checklist:

Pre-Trip
  • Make sure that cargo is properly distributed and adequately secured (in other words, according to the Standard).
  • Make sure that all securement equipment and vehicle structures are in good working order and used consistent with their capability.
  • Stow vehicle equipment.
  • Make sure that nothing obscures front and side views or interferes with the ability to drive the vehicle or respond in an emergency.
  • Inform carrier if packaging is not adequate. For example:
    • Banding is loose or not symmetrical on package.
    • Banding attachment device(s) are inefficient.
    • Wrapping is broken or ineffective.
    • Pallets are broken.
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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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