CDL Practice Tests: Flatbed Cargo Securement
Choose A Section:
Go!What is the minimum requirement for securing roll-off and hook containers?
- Two tiedowns installed lengthwise, each securing one side of the container to one of the vehicle's side rails.
- Two hooks, or an equivalent mechanism, securing both sides of the container to the vehicle chassis.
- One tiedown attached to both the vehicle chassis and the container chassis.
- All of these are acceptable.
Secure to the rear of the vehicle with at least one of the following three mechanisms:
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Rear Mechanism 1:
One tiedown attached to both the vehicle chassis and the container chassis.
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Rear Mechanism 2:
Two tiedowns installed lengthwise, each securing one side of the container to one of the vehicle's side rails.
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Rear Mechanism 3:
Two hooks, or an equivalent mechanism, securing both sides of the container to the vehicle chassis at least as effectively as the tiedowns in the two previous items.
When securing paper rolls with eyes crosswise, which of the following can be used to prevent side-to-side shifting when there is more than 8 inches of space to the wall?
- Friction mats.
- Void fillers.
- Any of these methods are acceptable.
- Tiedowns.
Requirements for eyes crosswise: prevent rolls from shifting toward either wall
If there is more than a total of 203 mm (8 in) of space between the ends of a paper roll and other rolls or the walls of the vehicle, use one of these methods:
- Void fillers (such as honeycomb)
- Blocking
- Bracing
- Friction mats
- Tiedowns
Specific securement methods are required for boulders that:
- Weigh more than 11,000 lbs, or have a volume of more than 2 cubic meters.
- Weigh more than 5,000 lbs, or have a volume of more than 1.25 cubic meters.
- Have more than five distinct sides.
- 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.
What is the minimum securement requirement for paper rolls with eyes vertical with a width between 1.25 and 1.76 its diameter?
- All of these are required.
- Tiedowns.
- Friction mats alone.
- Banding them together.
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.
What is the minimum WLL of a tiedown used to secure logs?
- It depends on if you are hauling shortwood or longwood
- 50% of cargo weight
- 4,000 lb
- 1,800 lb
- Use tiedowns in combination with bunks, stakes, or standards and bolsters to secure the load.
- All tiedowns must have a working load limit not less than 1,800 kg (4,000 lb.).
- Tension tiedowns as tightly as possible but not beyond their working load limit.
Securing heavy vehicles or equipment with crawler tracks or wheel requires a minimum of how many tiedowns?
- 4
- 6
- It depends on the weight of the load
- 2
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.
All of the following are requirements for transporting coils with eyes crosswise except:
- Attach one tiedown forward
- These are all requirements
- Attach one tiedown rearward
- Prevent the coil from rolling
There are three requirements for coils transported with eyes crosswise:
Prevent the coil from rolling
Attach one tiedown forward.
Attach one tiedown rearward.
If you were instructed to 'tarp' a load, what would you be using?
- A short piece of material, usually wood, nailed to the deck to reinforce blocking.
- A waterproof sheet used to cover cargo.
- A strip of material that may be used to unitize articles and is tensioned and clamped or crimped back upon itself.
- A platform or tray on which cargo is placed so that it can be handled as an article.
Tarp:
A waterproof sheet used to cover cargo.
All of the following are requirements for dividing vehicles over 33ft except:
- Vehicle must be divided by center stakes into sections of staggered length.
- Vehicle must be equipped with center stakes or comparable devices.
- Each tiedown must secure the highest log on each side of the center stake.
- Each tiedown must be fastened below the logs 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.
When securing an intermodal container on a chassis, what is the maximum allowable vertical travel when secured?
- 1/2 inch
- 1 inch
- 2 inches
- 2 1/2 inches
Securing devices must restrain the container from moving more than:
- 1.27 cm (1/2 in) forward.
- 1.27 cm (1/2 in) rearward.
- 1.27 cm (1/2 in) to the right.
- 1.27 cm (1/2 in) to the left.
- 2.54 cm (1 in) vertically.
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
- 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:
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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).
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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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