Question 2094 Deck General

The correct answer is C) 90 lbs. The reason is that with a 5-part tackle system, the weight of the load (300 lbs) is distributed across 5 parts of the line. Additionally, 10% of the weight is added for friction at each of the 5 sheaves. So the total pull required on the hauling part is 300 lbs / 5 parts + (300 lbs * 10% * 5 sheaves) = 60 lbs + 30 lbs = 90 lbs. The other options are incorrect because they do not properly account for the 5-part tackle system and the 10% friction factor at each sheave.