Choose A Section:
Go!Blocking is used to:
A structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.
Which means of securement is prohibited when transporting coils with the coil eye crosswise on the vehicle?
Attaching direct tiedowns diagonally through the eye of a coil to form an X-pattern when viewed from above the vehicle is prohibited.
What is the minimum WLL used to block forward movement of cargo weighing 36,500 lbs?
The working load limit of all components used to block cargo from forward movement must be 50% (or more) of the weight of the article being blocked.
A tiedown with a marked WLL of 8,000 lbs directly attached to an article has an actual WLL of:
The manufacturer’s working load limit is reduced by 50% for tiedowns which are directly attached from the vehicle to the article, and tiedowns attached to the vehicle that go around, through or over the article and are reattached to the same side of the vehicle.
When securing a metal coil with eyes lengthwise, all of the following are steps for securement option #1 except for:
Step #1: Support the coil above the deck to prevent the coil from rolling.
Step #2: Attach at least one direct tiedown on each diagonal through the eye of the coil making an angle not more than 45 degrees with the floor of the vehicle when viewed from the side.
Attach at least one indirect tiedown side-to-side over the top of the coil.
Use blocking or friction mats to prevent forward movement.
A single metal coil with eye vertical weighing 6,350 lbs requires tiedowns with a minimum aggregate WLL of:
The sum of the working load limits from all tiedowns must be at least 50% of the weight of the coils.
A steel coil weighing 21,000 lbs requires how much securement against forward movement?
Indirect tiedowns create what direction of force?
Indirect tiedowns create a downward force that increases the friction between the cargo and the deck. This increased friction restrains the cargo.
A friction mat is used to:
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.
Option #3 for a single metal coil with eyes lengthwise requires:
Same as Option #1, except the direct tiedowns are straight instead of diagonal.
You must have a New York State coil endorsement if you want to haul metal coils in New York.
The standard provides the minimum amount of force that cargo should be expected to withstand, in each direction, as shown below.
These minimum force requirements, called the “performance criteria”, were determined after extensive testing. The securement system MUST be capable of resisting these forces, as shown below.
The performance criteria may also be expressed in terms of acceleration, which is shown at right (“g” is the term used for gravity, and represents acceleration or deceleration).
EXAMPLE: If a steel coil weighs 10,000 lbs., the load securement must provide 8,000 lbs. of securement to prevent movement in the forward direction, which is expressed as 80% of the cargo weight (or 0.8 g).
Each component of the cargo securement system should not exceed its Working Load Limit (WLL), when at maximum force. The Working Load Limit is the maximum load that may be applied to a component of a cargo securement system during normal service; it is usually assigned by the manufacturer of the component.
Each force in the performance criteria is to be applied separately to the securement system to determine if it is compliant.
The maximum load that may be applied to a component of a cargo securement system during normal service, usually assigned by the manufacturer of the component.
The acceleration due to gravity, 9.823 m/sec2 (32.2 ft/sec2). For cargo securement purposes it is expressed as a percentage of cargo weight, i.e. .5g is 50% of force of gravity or 50% of cargo weight.
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.
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).
The vehicle must be strong enough to resist the forces in the performance criteria (Section 1). The vehicle must be appropriate for the cargo it is to transport, or it must be adapted to be suitable by using fittings, fixtures, dunnage, cribbing or other means.
According to federal and state regulations, the carrier and driver are responsible for ensuring that the vehicles, anchor points and other securement components are in good working order, with no obvious signs of damage. The driver is also required to conduct a pre-trip inspection by other operating regulations.
Roadside inspections are conducted in accordance with federal, state and provincial laws. If securement equipment fails inspection, it is likely that the vehicle may be placed out-of-service, and the motor carrier and/or the driver may be fined.