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Engineering
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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?
Question 6
Short Answer
A civil drafter estimates that a parcel of land contains 14,200 square feet. When surveyed, the parcel of land contains only 13,850 square feet. Find the percent to the nearest tenth percent of accuracy of the estimate.