CDL Practice Tests: Flatbed Cargo Securement
Choose A Section:
Go!Methods to keep a cradle from sliding include:
- Friction mats under the cradle.
- These can all be used.
- Placing a tiedown around the front of the cradle.
- Nailed wood blocking or cleats.
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.
A bulkhead is defined as:
- A structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.
- A vertical barrier across a vehicle to prevent forward movement of cargo.
- A vertical barrier placed directly behind the cab of a tractor to protect the cab in the event cargo should shift forward.
- A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo.
Bulkhead:
A vertical barrier across a vehicle to prevent forward movement of cargo.
High friction securement devices include:
- These can all be used for securement.
- Piece of wood with friction surface
- Friction mat
- Cleated mat
High Friction Devices
- Friction mat
- Piece of wood with friction surface
- Cleated mat
- Other specialized equipment
Which of the following is not a reason why loads should be secured?
- Prevent loss of load
- Avoid fines and citations
- Make it look pretty
- Prevent damage to the cargo
Why secure your load? To prevent:
- Loss of life
- Loss of load
- Damage to the cargo
- Damage to the vehicle
- Issuance of citations/fines to driver/carrier
- The vehicle being placed Out-of-Service.
- A crash
To secure paper rolls with eyes horizontal against rearward movement, you can use which of the following except:
- Blocking.
- Friction mats.
- The vehicle wall.
- Other cargo.
Direction of Potential Movement: Rearward
Methods to Prevent Movement:
- Other cargo
- Blocking
- Fiction mats
- Tiedowns
When securing concrete pipe over 45 inches loaded crosswise, which direction must the tiedowns on the front half of the load run?
- Rearward
- Straight up and down
- Forward
- It doesn't matter
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.
What is the maximum angle recommended for tiedowns securing cement pipe loaded crosswise, relative to the deck?
- 45-90 degrees
- 45 degrees
- It doesn't matter
- 180 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.
A sided vehicle containing cargo weighing 35,980 lbs must be able to withstand a rearward force of at least:
- 36,000 lbs
- 17,990 lbs
- 10,000 lbs
- 28,784 lbs
Note: If the cargo is contained in a sided vehicle, the vehicle structure MUST be strong enough to withstand the forces described earlier.
- Forward force: 0.8 g (80%)
- Rearward force: 0.5.g (50%)
- Sideways force: 0.5 g (50%)
To satisfy general cargo securement requirements, what is the minimum WLL for securing vehicles under 10,000 lbs?
- 4,500 lbs.
- 30% of the weight of the cargo.
- 50% of the weight of the cargo.
- 10,000 lbs.
Note: More tiedowns may be required to satisfy the general cargo securement requirements. The Standard states: "The sum of the working load limits from all tiedowns must be at least 50% of the weight of the cargo."
What is the minimum WLL of a tiedown used to secure logs?
- 1,800 lb
- It depends on if you are hauling shortwood or longwood
- 50% of cargo weight
- 4,000 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.
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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