CDL Practice Tests: Flatbed Cargo Securement
Choose A Section:
Go!Which of the following is not an acceptable method of containing loose parts when securing flattened or crushed vehicles?
- Sideboards or sides.
- Suitable covering material.
- Wedge them in between the flattened cars.
- Structural walls.
Containing Loose Parts
Use a containment system that:
- Prevents loose parts from falling from all four sides of the vehicle AND
- Extends to the full height of the cargo.
The containment system can consist of one or a combination of the following methods.
- Structural walls.
- Sides or sideboards.
- Suitable covering material.
The use of synthetic material for containment of loose parts is permitted.
When loading paper rolls with eyes horizontal, which of the following is not a requirement for stacking a second layer:
- It must be blocked against an eye-vertical blocking roll resting on the floor of the vehicle that is at least 1.5 times taller than the diameter of the roll being blocked.
- The bottom layer must extend all the way to the front.
- All the wells in the layer beneath must be filled
- Place second layer with eyes vertical.
Requirements for eyes crosswise: secure stacks of paper rolls from front-to-back movement
- Do not load paper rolls on a second layer unless the bottom layer extends to the front of the vehicle.
- Load paper rolls on higher layers only if all wells in the layer beneath are filled.
-
Secure the foremost roll in each upper layer (or any roll with an empty well in front of it) against forward movement:
- Either by placing it in a well formed by two rolls on the lower row whose diameter is equal to or greater than that of the roll on the upper row.
- Or by banding it to other rolls.
- Or by blocking it against an eye-vertical blocking roll resting on the floor of the vehicle that is at least 1.5 times taller than the diameter of the roll being blocked.
To satisfy general cargo securement requirements, what is the minimum WLL for securing vehicles under 10,000 lbs?
- 50% of the weight of the cargo.
- 4,500 lbs.
- 30% 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 a pallet used for?
- 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. (Same as "Skid")
- A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo.
- A vertical barrier across a vehicle to prevent forward movement of cargo.
Pallet:
A platform or tray on which cargo is placed so that it can be handled as an article. (Same as "Skid")
The North American Cargo Securement Standard cover vehicles weighing:
- Over 4,500 lbs
- Over 10,000 lbs
- 26,001 lbs
- Less than 10,000 lbs
North American Cargo Securement Standard
What does the Standard cover? (Section 1.1)
- Commercial vehicles (including a combination of vehicles) that are operated on a highway and have a gross vehicle rating over 4,500 kg (10,000 lb.)
Vehicles
What is the minimum nominal dimension of timber blocking used to secure concrete pipe?
- Half the diameter of the pipe
- 4 x 6 in
- 2 x 4 in
- 8 x 10 in
Blocking must be:
- Placed against the pipe
- Secured to prevent it from moving out from under the pipe.
Timber blocking must have a minimum nominal dimension of 10 x 15 cm (4 x 6 in).
What is the minimum aggregate WLL for a group of concrete pipe weighing 16,000 lbs?
- 8,001 lbs
- 7,999 lbs
- 5,000 lbs
- 10,000 lbs
General tiedown requirements
The aggregate working load limit of all tiedowns on any group of pipe must be more than half the total weight of all pipes in the group.
When securing rolls of paper with eyes vertical, how many points of contact are required to consider a roll secure?
- 1
- 4
- 3
- 2
Usually the roll is secure if a paper roll has 3 well-separated points of contact with the vehicle, other rolls, or other cargo.
When loaded cement pipe over 45 inches in diameter, which pipes should be blocked, wedged, or otherwise immobilized?
- Rear only.
- Front only.
- Front and rear.
- It depends on the weight of the load.
Immobilize the front and rear pipe with on of the following methods:
- Blocking
- Wedges
- Vehicle end structure
- Stakes
- Locked pipe unloader
- Other equivalent means
When securing a non-cubic boulder with an unstable base, the four surrounding chains must have a WLL of at least:
- 50% the weight of the boulder
- 5,000 lbs
- 11,000 lbs
- 25% the weight of the boulder
Special Circumstances: Securing a Non-Cubic Shaped Boulder with an Unstable Base
The securement of a non-cubic shaped boulder with an unstable base must meet these requirements in addition to the other large boulder requirements in Section 13.
Surround the top of each boulder at a point between 1/2 and 2/3 of its height with one chain.
The WLL of the chain must be at least 50% of the weight of the boulder.
Attach four chains to the surrounding chain and the vehicle to form a blocking mechanism that prevents any horizontal movement.
Each chain must have a WLL of at least 25% the weight of the boulder, and the angle of the chain must be less than 45° from the horizontal.
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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