Fundamentals of Surveying (FS) Practice Exam

What factor allows surveyors to relate original record distances to modern measurements during a resurvey?

1. Elevation factor

2. Grid factor

3. Scale factor

4. Zone constant

The correct answer is: Scale factor

The scale factor is the correct answer because it is essential in comparing and converting measurements taken in different contexts or reference systems. In surveying, the original records might have been created using different measurement techniques, standards, or scales than those used in modern surveying practices. The scale factor allows surveyors to adjust distances from the original record to align them with current measurements by establishing a proportional relationship based on the difference in scale used between the two assessments. For example, if the original records were made on a map with a scale of 1:1000 and modern measurements are being taken using a scale of 1:5000, the scale factor would help to accurately convert the original distances to the distances compatible with the current scale. This ensures that the resurveying aligns properly with historical records, maintaining the integrity and accuracy of the data being compared or utilized in the present day.