Traversing and Coordinate Geometry Flashcards
6 cards from real FUNDAMENTAL SURVEYING practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Traversing and Coordinate Geometry flashcards as text
What is the Double Meridian Distance (DMD) of the first course in a traverse?
Answer: Equal to its departure
By convention, the DMD of the first course equals its own departure.
If the total area by DMD computation yields a negative value, what does this indicate?
Answer: The traverse courses were listed in a clockwise direction
A negative area from the DMD method indicates the traverse courses were listed in clockwise order; taking the absolute value gives the correct area.
What is 'resection' in plane surveying?
Answer: Determining the position of an unknown point by observing angles to three or more known control points
Resection determines an unknown occupied station's coordinates by measuring angles (or directions) to known control points.
What is 'intersection' in plane surveying?
Answer: Determining the position of an unknown point by observing from two or more known stations
Intersection locates an unknown point by measuring angles (or bearings) from two or more known occupied stations to the unknown point.
Which adjustment method provides the statistically optimal solution for a traverse with weighted observations?
Answer: Least Squares Adjustment
Least squares adjustment is statistically optimal because it minimizes the weighted sum of squared residuals.
State Plane Coordinate (SPC) systems use which map projection for zones that are wider east-west?
Answer: Lambert Conformal Conic
Lambert Conformal Conic projection is used for SPC zones that extend primarily east-west, while Transverse Mercator is used for narrow north-south zones.