Which of the following is the preferred method when determining measurements on drawings?

Which of the following is the preferred method when determining measurements on drawings?
A . Use an architect’s scale to measure directly from the drawing
B . Use the dimensions given on the drawing
C . Use the indirect method of measurement
D . Calculate the length from other dimensions

View Answer

Answer: B

Explanation:

When reviewing drawings, the preferred method for determining measurements is to use the dimensions provided directly on the drawing. According to NFPA 1031, Fire Inspector and Plan Examiner Professional Qualifications, using the given dimensions ensures accuracy, as these measurements are usually verified by the architect or engineer responsible for the drawing. Measuring directly from the drawing using an architect’s scale (option A) can lead to inaccuracies due to print scale errors or reproduction. Therefore, relying on the provided dimensions is the best practice.