Question 1650Deck General70% to pass
What is the mechanical advantage, neglecting friction, of tackle number 5 as shown in illustration D029DG below?
AI Explanation
The correct answer is C) 5.0.
The mechanical advantage of a tackle system, neglecting friction, is equal to the number of rope parts supporting the load. In the illustration D029DG, the tackle number 5 has 5 rope parts supporting the load, which gives it a mechanical advantage of 5.0.
The other options are incorrect because:
A) 2.0 is too low, as the tackle has 5 rope parts.
B) 4.0 is too low, as the tackle has 5 rope parts.
D) 5.5 is too high, as the correct mechanical advantage is 5.0.
Related Questions
#1648 Which vessel must carry a compass on board? (small passenger vessel regulations) #1649 The definition of "partially protected waters", as used in the Regulations does not include _______________.#1651 Chafing gear _______________.#1652 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? #1653 Limit switches are located on the survival craft winch systems for OSVs to _______________.