FS - Fundamentals of Surveying Construction and Topographic Surveys Questions and Answers

Question 1

Which of the following statements is a fundamental characteristic of contour lines on a topographic map?

Accepted Answer

Closely spaced contours indicate a steep slope.

Answer

They frequently cross each other in areas of complex terrain.

Answer

Contour lines point upstream when crossing a river or stream.

Answer

They are always drawn as perfectly straight lines.

Question 2

During slope staking for a roadway cut, the point where the designed side slope intersects the natural ground surface is located and staked. This critical point is known as the:

Accepted Answer

Catch point

Answer

Hinge point

Answer

Grade rod point

Answer

Offset stake

Question 3

A surveyor needs to calculate the volume of earthwork between two parallel cross-sections. The area of the first cross-section (A1) is 450 sq ft and the area of the second cross-section (A2) is 550 sq ft. The distance (L) between the sections is 100 ft. Which of the following formulas is most commonly used for this calculation and what is the resulting volume?

Accepted Answer

Average End Area Formula, resulting in 50,000 cubic feet

Answer

Prismoidal Formula, resulting in 50,000 cubic feet

Answer

Cross-Multiplication Method, resulting in 100,000 cubic feet

Answer

Average End Area Formula, resulting in 25,000 cubic feet

Question 4

A contractor has just completed the installation of underground utilities for a new subdivision. Before the trenches are backfilled, the project engineer requests a survey to document the final horizontal and vertical locations of the pipes and structures. This type of survey is best known as:

Accepted Answer

An as-built survey

Answer

A topographic survey

Answer

A construction layout survey

Answer

A boundary survey

Question 5

In digital terrain modeling, which of the following is a key advantage of a Triangulated Irregular Network (TIN) over a raster-based Digital Elevation Model (DEM)?

Accepted Answer

TINs can more efficiently and accurately represent significant linear features like ridges and breaklines.

Answer

TINs require significantly more data storage for the same level of detail.

Answer

TINs use a uniform grid structure, making slope calculations simpler.

Answer

TINs are a passive remote sensing data format, while DEMs are active.

Question 6

A surveyor is setting up control for a building foundation. After staking the building corners, the surveyor erects wooden frames set back from the building lines, upon which strings can be stretched to define the exact wall locations and elevations. These frames are known as:

Accepted Answer

Batter boards

Answer

Benchmark posts

Answer

Control hubs

Answer

Offset monuments