FS - Fundamentals of Surveying Survey Computations and Adjustments Questions and Answers

Question 1

A surveyor measures a rectangular parcel of land.
The length is measured as 800.00 ft with an estimated error of ±0.08 ft, and the width is measured as 400.00 ft with an estimated error of ±0.05 ft.
Using the law of propagation of errors, what is the estimated error in the computed area of the parcel?

Accepted Answer

±69.71 sq ft

Answer

±40.00 sq ft

Answer

±0.13 sq ft

Answer

±80.00 sq ft

Question 2

In a least-squares adjustment of a surveying network, what does the principle of least squares seek to minimize?

Accepted Answer

The sum of the squares of the residuals

Answer

The number of redundant observations

Answer

The largest correction applied to any single measurement

Answer

The weighted mean of the observations

Question 3

A surveyor performs a three-wire leveling backsight and records the following rod readings: Upper wire: 6.892 ft, Middle wire: 5.751 ft, Lower wire: 4.610 ft. Which of the following is the correct mean backsight reading and confirms the readings are acceptable?

Accepted Answer

5.750 ft; the readings are acceptable.

Answer

5.751 ft; the readings are not acceptable.

Answer

5.751 ft; the readings are acceptable.

Answer

5.752 ft; the readings are not acceptable.

Question 4

A traverse was run on an assumed north datum. To rotate the traverse to a geodetic north datum, a two-dimensional conformal coordinate transformation is used. What is the minimum number of points that must have known coordinates in both the assumed system and the geodetic system to compute the necessary transformation parameters (scale, rotation, and two translations)?

Accepted Answer

Two

Answer

One

Answer

Four

Answer

Three

Question 5

When adjusting a closed traverse, the Transit Rule distributes the closing error in latitude and departure by making the correction to each course proportional to what?

Accepted Answer

The latitude and departure of the traverse course

Answer

The length of the traverse course

Answer

The angular error measured at the traverse station

Answer

The total length of the traverse

Question 6

A level circuit is run from BM A (Elev = 250.00 m) to a new benchmark, BM B, and then back to BM A. The sum of the backsights (ΣBS) is +12.45 m, and the sum of the foresights (ΣFS) is +12.55 m. What is the elevation of BM B if it is exactly halfway through the level circuit in terms of the number of setups?

Accepted Answer

249.95 m

Answer

250.05 m

Answer

249.90 m

Answer

250.00 m