FUNDAMENTAL SURVEYING Traversing and Coordinate Geometry 3

Question 1

What is the Double Meridian Distance (DMD) of the first course in a traverse?

Accepted Answer

Equal to its departure

Answer

By convention, the DMD of the first course equals its own departure.

Question 2

If the total area by DMD computation yields a negative value, what does this indicate?

Accepted Answer

The traverse courses were listed in a clockwise direction

Answer

A negative area from the DMD method indicates the traverse courses were listed in clockwise order; taking the absolute value gives the correct area.

Question 3

What is 'resection' in plane surveying?

Accepted Answer

Determining the position of an unknown point by observing angles to three or more known control points

Answer

Resection determines an unknown occupied station's coordinates by measuring angles (or directions) to known control points.

Question 4

What is 'intersection' in plane surveying?

Accepted Answer

Determining the position of an unknown point by observing from two or more known stations

Answer

Intersection locates an unknown point by measuring angles (or bearings) from two or more known occupied stations to the unknown point.

Question 5

Which adjustment method provides the statistically optimal solution for a traverse with weighted observations?

Accepted Answer

Least Squares Adjustment

Answer

Least squares adjustment is statistically optimal because it minimizes the weighted sum of squared residuals.

FUNDAMENTAL SURVEYING Practice Test