Question 2096 Deck General

The correct answer is A) 20. The mechanical advantage of a tackle system is determined by the number of parts of the hauling line that are supporting the weight. In this case, the tackle number 5 has 10 parts of the hauling line supporting the weight, and the tackle number 9 has 2 parts of the hauling line supporting the weight. Therefore, the mechanical advantage of this rig is 10 x 2 = 20. The other options are incorrect because: B) 9 is the number of parts of the hauling line in tackle number 9, not the mechanical advantage. C) 5 is the number of the tackle, not the mechanical advantage. D) 4 is incorrect as the mechanical advantage is 20.