NCEES MCQ Surveying 4

Question 1

An EDM instrument is calibrated with an additive constant of +8 mm. A measured slope distance of 1,245.372 m should be corrected to:

Accepted Answer

1,245.380 m

Answer

A positive additive constant means the instrument over-reads; add the constant to the measured distance: 1,245.372 + 0.008 = 1,245.380 m.

Question 2

In a level circuit, the sum of backsights minus the sum of foresights should equal:

Accepted Answer

The difference in elevation between start and end points

Answer

ΣBS – ΣFS equals the net change in elevation from the starting point to the ending point of the level run.

Question 3

Which map projection preserves shape (angles) locally but distorts area?

Accepted Answer

Lambert conformal conic

Answer

The Lambert conformal conic projection is conformal, meaning it preserves local angles and shape, but distorts area away from the standard parallels.

Question 4

A right-of-way monument is found to be 0.15 ft east and 0.08 ft north of its record position. The total positional error of the monument is approximately:

Accepted Answer

0.17 ft

Answer

Total error = √(0.15² + 0.08²) = √(0.0225 + 0.0064) = √0.0289 ≈ 0.170 ft.

Question 5

In the State Plane Coordinate System (SPCS), zones with a predominantly north-south extent use which projection?

Accepted Answer

Transverse Mercator

Answer

Transverse Mercator is used for SPCS zones that are narrow in the east-west direction (tall, north-south extent).

NCEES Practice Test

NCEES Practice Test

NCEES MCQ Surveying 4