Question 1652Deck General70% to pass
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?
AI Explanation
The correct answer is D) 24.
The mechanical advantage of a tackle system is determined by the number of rope parts supporting the load. In this case, the tackle number 4 has 4 rope parts, and the hauling part of this tackle is bent to the weight hook of tackle number 11, which also has 4 rope parts. Therefore, the overall mechanical advantage of this rig is the product of the individual mechanical advantages, which is 4 x 4 = 16.
The other options are incorrect because they do not correctly account for the combined mechanical advantage of the two tackle systems. Option A) 4 is the mechanical advantage of just the first tackle, while options B) 6 and C) 10 do not accurately represent the combined mechanical advantage of the two tackle systems.
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