![]() From interpolation it comes out to be 161' so they claim the correct answer is 160'. (The chart lists a lifting capacity of 18,440 lbs. and iterpolate between the values in the chart to give an exact lifting radius. ![]() The solution states to add the weight of the boom to the load weight (in this case 2,000 lbs. The question is asking for the maximum safe lifting radius to lift a 15,000 lb. ![]() They also give you a chart that lists lifting capacities for different radii. The problem gives you the boom length, the weight of the boom and its rigging accesories, and a load weight. I am currently going through the Six minute solutions for the PE construction exam and problem 45 in the depth section is a tower crane lifting radius question.
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