Final answer:
A strap is the type of tiedown commonly used with a ratchet or winch-type assembly to apply adequate tension and secure a load. Tension is the force that acts along the length of a flexible connector, ensuring the load is firmly held in place.
Step-by-step explanation:
The type of tiedown referred to in the question is one used in conjunction with a ratchet or winch-type assembly. This setup is designed to increase the tension on the tiedown and eliminate any slack that might be present. The correct answer to the question is B. Strap. A strap is typically used with ratchet or winch assemblies to apply tension equally and securely, ensuring the load is firmly held without movement. Although ropes and chains can also be used with tensioning devices, straps are most commonly used in this context for securing loads.
Tension is a key concept in understanding how these tiedown assemblies work. Tension is a force that acts along the length of a flexible connector such as a rope, chain, or strap. For this force to work effectively in securing a load, the tension must be sufficient to hold the load without allowing any movement, which is why ratchet or winch assemblies that apply tension to straps are typically chosen for this task.