Question 2113 Deck General

The correct answer is C) 3. The mechanical advantage of a tackle is determined by the number of parts of the rope that support the load. In the illustration D029DG, tackle number 3 has 3 parts of the rope supporting the load, which gives it a mechanical advantage of 3. The other answer choices are incorrect because: A) 1 - This would be the mechanical advantage of a single fixed pulley, not a 3-part tackle. B) 2 - This would be the mechanical advantage of a 2-part tackle. D) 4 - This would be the mechanical advantage of a 4-part tackle.