You are using tackle number 4 as shown in illustration D029DG below to lift a weight. The hauling part of this tackle is bent to the weight hook of tackle number 11. What is the mechanical advantage of this rig?

Correct Answer: Option D — 24

Compounding tackles requires multiplying their individual mechanical advantages. Tackle 4 provides an MA of 4, and Tackle 11 provides an MA of 6. Multiplying these values (4 x 6) yields a total mechanical advantage of 24 for the combined system, significantly increasing the lifting capacity of the rig.