CDL Practice Tests: Flatbed Cargo Securement
Choose A Section:
Go!A stack of shortwood loaded lengthwise can be secured with one tiedown if:
- They are blocked in the back by the vehicle's end structure or another stack of logs.
- They are blocked in the front by a headboard or another stack of logs.
- All of these apply.
- All logs in the stack are less than 10 ft long.
One tiedown
A stack can be secured with one tiedown if all logs in the stack less than 3.04 m (10 ft) are:
- Blocked in the front by a headboard strong enough to restrain the load or by another stack of logs.
- Blocked in the rear by the vehicle's end structure or another stack of logs.
Specific cargo securement rules on automobiles and light trucks apply to vehicles of what weight?
- 4,500 lbs or less
- It depends on what the vehicle is used for.
- 10,000 lbs or less
- 12,000 lbs or less
What Does This Section Cover?
The requirements in this section apply to the transportation of automobiles, light trucks, and vans that individually weigh 4500 kg (10,000 lb.) or less.
What is bell pipe concrete?
- Pipe used to make concrete bells.
- Pipe whose flanged end is of larger diameter than its barrel.
- Concrete used to make bell pipe.
- Pipe whose flanged end is of smaller diameter than its barrel.
Bell Pipe Concrete:
Pipe whose flanged end is of larger diameter than its barrel.
What is the minimum requirement for securing roll-off and hook containers?
- All of these are acceptable.
- 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.
Secure to the rear of the vehicle with at least one of the following three mechanisms:
-
Rear Mechanism 1:
One tiedown attached to both the vehicle chassis and the container chassis.
-
Rear Mechanism 2:
Two tiedowns installed lengthwise, each securing one side of the container to one of the vehicle's side rails.
-
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 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.
- Place second layer with eyes vertical.
- All the wells in the layer beneath must be filled
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.
Cargo securement for a load weighing 37,000 lbs must be able to withstand a minimum forward braking force of:
- 10,000 lbs
- 29,600 lbs
- 18,500 lbs
- 7,400 lbs
How well must the securement system work? (Section 1.3)
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."
Cargo is contained when:
- It is loaded on the end of the truck.
- 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.
- It is packed in a square box.
- It fills a void between articles of cargo and the structure of the vehicle that has sufficient strength to prevent movement of the articles of cargo.
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.
If the cargo is fully contained in a sided vehicle, what is the minimum requirement for withstanding sideways force?
- 0.8g (80% of cargo weight)
- 0.5g (50% of cargo weight)
- 0.2g (20% of cargo weight)
- 0.7g (70% of cargo weight)
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%)
Which of these is specifically prohibited when securing crushed or flattened vehicles?
- Chains.
- Synthetic webbing.
- Containment walls.
- Wire rope.
Securement Requirements
Transport flattened or crushed vehicles so that:
- Cargo does not shift while in transit AND
- Loose parts from the flattened vehicles do not dislodge and fall from the transport vehicle
Do not use synthetic webbing to secure vehicles.
What is the minimum amount of rearward force that a cargo securement system must withstand?
- 80% of cargo weight
- 100% of cargo weight
- 50% of cargo weight
- 20% 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."
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.
Why Join Trucking Truth?
- The High Road Training Program
- The High Road Article Series
- The Friendliest Trucker's Forum Ever!
- Email Updates When New Articles Are Posted
Apply For Paid CDL Training Through TruckingTruth
Did you know you can fill out one quick form here on TruckingTruth and apply to several companies at once for paid CDL training? Seriously! The application only takes one minute. You will speak with recruiters today. There is no obligation whatsoever. Learn more and apply here:
TT On Facebook