Question 2112 Deck General
70% to passWhat is the mechanical advantage, neglecting friction, of tackle number 12 as shown in illustration D029DG below?
A
3.0
B
5.5
C
6.0
D
7.0
AI Explanation
The correct answer is D) 7.0. The mechanical advantage of a tackle system, neglecting friction, is equal to the number of parts of the rope supporting the load. In the illustration D029DG, the tackle system has 12 parts of the rope supporting the load, so the mechanical advantage is 7.0. The other answer choices are incorrect because 3.0 is too low, 5.5 is too low, and 6.0 is also too low for a 12-part tackle system.
Related Questions
Q3915:A V-shaped ripple with the point of the V pointing upstream in a river may indic...
Q3133:Container vessels are required to maintain an Oil Record Book when the vessel is...
Q2835:A cargo exception would appear on _______________.
Q1064:You are crude oil washing on a tanker with an inert gas system. What percentage ...
Q3782:The Master or person in charge of a MODU is required to submit a casualty report...
Ready to test your knowledge?
Take a Deck General Practice Exam
Official Resources
Pass Your Coast Guard Licensing Exams!
Study offline, track your progress, and simulate real exams with the Coast Guard Exams app