CDL Practice Tests: Flatbed Cargo Securement

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Question #691 (1 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?

  • 1
  • 2
  • 3
  • 4
  • 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 #764 (2 of 10)

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When securing heavy vehicles, what is the minimum WLL of each tiedown?

  • 2,268 lbs
  • 50% of the weight of the cargo
  • 10,000 lbs
  • 5,000 lbs
  • Restrain cargo using a minimum of four tiedowns, each having a WLL of at least 2,268 kg (5,000 lb.).
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Question #737 (3 of 10)

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When securing paper rolls with eyes horizontal, which of the following should be used to secure the rear-most roll?

  • All of these are acceptable
  • Secure blocking against rear doors.
  • Wedges or chocks secured by some means in addition to friction.
  • Secure roll against rear doors.

Note: Chocks, Wedges, or Blocking Securing the Front or Rear Roll - Hold in place by some means in addition to friction so they cannot become unintentionally unfastened or loose while the vehicle is in transit. This is often accomplished with nails.

Requirements for eyes crosswise: secure rearmost roll

Do not secure the rearmost roll with:

  • Either the rear doors of the vehicle or intermodal container
  • Or blocking held in place by those doors.
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Question #805 (4 of 10)

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A dunnage bag is:

  • A transverse load bearing structural component, particularly a part of a log bunk.
  • 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.
  • 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 #752 (5 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?

  • 3
  • It depends on the weight of the pipe.
  • 2
  • 1
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 #775 (6 of 10)

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When using tiedowns to secure boulders, all of the following are requirements except:

  • Tiedowns must be arranged to prevent sliding across the rock surface.
  • Use only chain to secure large boulders.
  • Tiedowns should be located in valleys or notches across the top of the boulder.
  • Boulders must be loaded as far back towards the rear as possible.
Requirements

Use only chain to secure large boulders.

Tiedowns in direct contact with the boulder:

Should be located in valleys or notches across the top of the boulder

Must be arranged to prevent sliding across the rock surface.

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Question #684 (7 of 10)

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What is the minimum amount of rearward force that a cargo securement system must withstand?

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

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."
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Question #708 (8 of 10)

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Which of the following is not a requirement for shortwood loaded lengthwise?

  • Logs should be centered in the bunk.
  • Must be cradled in a bunk or contained by stakes.
  • Each outside log bearing against stakes should extend at least 6 in beyond the stakes at each end.
  • Heavier logs must be stacked on top.
Requirements for shortwood loaded lengthwise
  • Shortwood must be cradled in a bunk or contained by stakes.
  • Logs should be centered in the bunk.
  • Each outside log bearing against stakes should extend at least 0.15 m (6 in) beyond the stakes at each end.
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Question #806 (9 of 10)

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A container chassis vehicle is defined as:

  • A specialized container, primarily used to contain and transport materials in the waste, recycling, construction/demolition, and scrap industries, which are used in conjunction with specialized vehicles, in which the container isloaded and unloaded onto a tilt frame body by an articulating hook-arm.
  • A structure, device, or another substantial article placed against an article to prevent it from tipping that may also prevent it from shifting.
  • A reusable, transportable enclosure that is especially designed with integral locking devices that secure it to a container chassis trailer to facilitate the efficient and bulk shipping and transfer of goods by, or between various modes of transport, such as highway, rail, sea, and air.
  • A vehicle especially built and fitted with locking devices for the transport of intermodal containers.

Container Chassis Vehicle:

A vehicle especially built and fitted with locking devices for the transport of intermodal containers.

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Question #740 (10 of 10)

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When securing paper rolls on a flatbed or curtainside vehicle, it is acceptable to stack rolls with eyes vertical:

  • Stacking rolls with eyes vertical is not acceptable
  • When temperature is 63 degrees F or more.
  • When total weight is less than 5,000 lbs.
  • When using tiedowns that wrap twice around the load.

Special Circumstances: Loading and Securing Paper Rolls on a Flatbed Vehicle or a Curtain-Sided Vehicle

Requirements for eyes vertical or with eyes horizontal and lengthwise

Load and secure the paper rolls as described for a sided vehicle.

Attach tiedowns to secure entire load according to the general cargo securement requirements in Section 2.

Note: Stacked loads of paper rolls with eyes vertical are prohibited

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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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