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Engineering
Study Set
Practical Problems in Mathematics for Drafting and CAD
Quiz 38: Estimation and Percent Accuracy
Path 4
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Question 1
True/False
The percentage of an expected value describes how close an approximation is to the expected value.
Question 2
Short Answer
A CAD drafter estimates that 600 CAD symbols will be used on a set of drawings. When completed, 630 symbols were actually used. The actual amount is within what percent to the nearest percent of the estimate?
Question 3
Short Answer
A structural drafter estimates that 50 gusset plates will be needed to frame a building. It was found that only 40 were needed. The actual amount is within what percent to the nearest tenth percent of the estimate?
Question 4
True/False
Estimations in drafting are used to determine the cost of materials
Question 5
Short Answer
An architect estimates that is will take 50 hours to complete a proposed design for a customer. The architect completes the design in 45 hours. The actual amount is within what percent of accuracy of the estimate?