CDL Practice Tests: Flatbed Cargo Securement
Choose A Section:
Go!When securing building materials, how many knots are acceptable in the tiedown(s)?
- 2
- 1
- Depends on the weight of the cargo.
- 0
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.
If loading and securing paper rolls on a second layer:
- Be sure the bottom layer extends to the front of the vehicle.
- Lay the second layer horizontally.
- Stack the second layer at the back.
- Make sure heavier rolls are on top.
Stacked Loads
- Load paper rolls on a second layer only if the bottom layer extends to the front of the vehicle.
-
Prevent forward, rearward, or side-to-side movement:
- Either by the same means required for the bottom layer
- Or by the use of a blocking roll from a lower layer.
- A roll in the rearmost row of any layer must not be raised using dunnage.
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 chock.
- Void filler.
- A friction mat.
- 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.
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.
When securing paper rolls on a flatbed or curtainside vehicle, it is acceptable to stack rolls with eyes vertical:
- When using tiedowns that wrap twice around the load.
- 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.
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
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 strip of material that may be used to unitize articles and is tensioned and clamped or crimped back upon itself.
- A waterproof sheet used to cover cargo.
- 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.
To secure paper rolls with eyes horizontal against rearward movement, you can use which of the following except:
- Other cargo.
- The vehicle wall.
- Friction mats.
- Blocking.
Direction of Potential Movement: Rearward
Methods to Prevent Movement:
- Other cargo
- Blocking
- Fiction mats
- Tiedowns
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?
- Void fillers.
- Any of these methods are acceptable.
- Friction mats.
- 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
What is the minimum Working Load Limit for the entire securement system?
- 20% of cargo weight.
- 100% of cargo weight.
- 50% of cargo weight.
- 80% 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.
What is the maximum angle recommended for tiedowns securing cement pipe loaded crosswise, relative to the deck?
- It doesn't matter
- 45-90 degrees
- 180 degrees
- 45 degrees
If the first pipe of a group in the top tier is not at the front of the tier beneath:
Attach an additional tiedown that runs rearward at an angle not more than 45 to the horizontal when viewed from the side of the vehicle, whenever practical.
Pass tiedown either through the front pipe of the upper tier or outside the front pipe and over both longitudinal tiedowns.
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:
-
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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