CDL Practice Tests: Flatbed Cargo Securement
Choose A Section:
Go!When securing a non-cubic boulder with an unstable base, the four surrounding chains must have a WLL of at least:
- 11,000 lbs
- 5,000 lbs
- 25% the weight of the boulder
- 50% 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.
What is a rub rail?
- A rail along the side of a vehicle that protects the side of the vehicle from impacts.
- A strip of material that may be used to unitize articles and is tensioned and clamped or crimped back upon itself. (same as "Strapping")
- 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.
- A platform or tray on which cargo is placed so that it can be handled as an article. (Same as "Skid")
Rub Rail:
A rail along the side of a vehicle that protects the side of the vehicle from impacts.
When securing rolls of paper with eyes vertical, how many points of contact are required to consider a roll secure?
- 3
- 1
- 4
- 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.
What is a cab shield?
- The depression formed between two cylindrical articles when they are laid with their eyes horizontal and parallel against each other.
- A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo.
- A structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.
- A vertical barrier placed directly behind the cab of a tractor to protect the cab in the event cargo should shift forward.
What is the minimum number of tiedowns to use on a load 4ft 7in long, and weighing 1,237 lbs?
- 4
- 2
- 1
- 3
-
If load is 5ft or shorter, 1,100 lbs or lighter:
Minimum number of tiedowns: 1
-
If load is 5ft or shorter, over 1,100 lbs:
Minimum number of tiedowns: 2
-
If load is more than 5ft but less than 10ft:
Minimum number of tiedowns: 2
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%)
When securing metal coils, it is acceptable to use nailed blocking or cleats as the sole means to secure:
- It is not acceptable.
- Timbers
- Nailed wood cradles
- Chocks
The use of nailed blocking or cleats as the sole means to secure timbers, chocks or wedges, or a nailed wood cradle, is prohibited.
When securing building materials, how many tiedowns are required for top tier bundles longer than 5 ft?
- It depends on weight
- 2
- 1
- 0
Tiedowns over the top tier of bundles with a minimum of 2 tiedowns over each top bundle longer than 1.52 m (5 ft).
What is the minimum WLL of each tiedown used to secure crushed or flattened vehicles?
- 5,000 lbs
- 2,268 lbs
- 10,000 lbs
- It depends on the vehicle
Option 2:
Has containment walls on three sides that:
- Extend to the full height of the load
- Block against cargo movement in the forward, rearward, and one sideways direction.
Secures each stack of vehicles with a minimum of two tiedowns, each having a minimum WLL of 2,268 kg (5,000 lb.).
Option 3:
Has containment walls on two sides that:
- Extend to the full height of the load.
- Block against cargo movement in the forward and rearward.
Secures each stack of vehicles with a minimum of three tiedowns, each having a minimum WLL of 2,268 kg (5,000 lb.).
Option 4:
Has a minimum of four tiedowns per vehicle stack with each tiedown having a minimum WLL of 2,268 kg (5,000 lb.).
Specific cargo securement rules on automobiles and light trucks apply to vehicles of what weight?
- It depends on what the vehicle is used for.
- 4,500 lbs or less
- 12,000 lbs or less
- 10,000 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.
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