Final answer:
A multiple lift rigging assembly from wire rope rigging suppliers is known as a pulley system, which offers a mechanical advantage by allowing heavy loads to be lifted with less force.
Step-by-step explanation:
A multiple lift rigging assembly manufactured by wire rope rigging suppliers is known as a pulley system. A pulley system is created by using pulleys and cables to lift heavy loads with less force, providing a mechanical advantage to the user. The mechanical advantage (IMA) of pulleys is calculated by counting the number of ropes supporting the load. For example, if there are three ropes, the IMA is three, which means you can lift a heavy object with one-third of the force required if you were lifting it without the pulleys. However, you would have to pull three times as much rope to raise the object the same distance. Pulley systems are commonly used in various applications, including construction cranes, flagpoles, and window blinds.