Surveying 06/04/2022

What is the leveling term "vertical line"?

• A line in a horizontal plane.

• A line that follows the local direction of gravity as indicated by a plumb line.

• A line in a level surface - a curved line.

• None of these.

What is the leveling term "level surface"?

• A line in a level surface - a curved line.

• A plane perpendicular to the local direction of gravity.

• A curved surface that at every point is perpendicular to the local plumb line.

• None of these.

What is the leveling term "leveling"?

• The process of finding elevations of points or their differences in elevation.

• The process of finding lengths between points or their differences in length.

• The process of finding angles of points or their differences in angle.

• None of these.

Why is it important for a benchmark to be a stable, relatively permanent object?

• It is important so the elevation will remain constant and useable over a long period of time

• It is not important.

• None of these.

If a plus sight of 3.54 ft is taken on BM A, elevation 850.48 ft, and a minus sight of 7.84 ft is read on point X, calculate the HI?

If a plus sight of 7.44 ft is taken on BM A, elevation 850.48 ft, and a minus sight of 1.55 ft is read on point X, calculate the elevation of point X?