Question 2100 Deck General
70% to passYou are using tackle number 12 as shown in illustration D029DG below to lift a weight. The hauling part of this tackle is bent to the weight hook (w) of tackle number 2. What is the mechanical advantage of this rig?
A
9
B
10
C
14
D
21
AI Explanation
The correct answer is C) 14. 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 12 has 7 parts of the hauling line supporting the weight, and the tackle number 2 has an additional 7 parts, resulting in a total mechanical advantage of 14. The other options are incorrect because they do not accurately represent the number of parts of the hauling line supporting the weight in this specific tackle system configuration.
Related Questions
Q1909:A wooden small passenger vessel operating on a coastwise route in cold water sha...
Q4749:An inclined semisubmersible with a very short rolling period about a constant a...
Q4381:The COASTAL DRILLER, with a displacement of 13,553 kips, has a draft of _______...
Q1617:When taking a length of new manila rope from the coil, you should _____________...
Q3314:On offshore drilling units, each fire station is required to be fitted with a ho...
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