Civil Engineering PE Surveying and Geomatics 2

Question 1

In the deflection angle method for horizontal curve layout, what is the total deflection angle from PC to PT if the central angle Δ = 40°?

Accepted Answer

20°

Answer

40°

Answer

80°

Answer

10°

Question 2

Using the coordinate method, what is the area of a triangle with vertices at (0, 0), (6, 0), and (3, 4) in feet?

Accepted Answer

12 sq ft

Answer

8 sq ft

Answer

24 sq ft

Answer

6 sq ft

Question 3

A six-sided closed traverse has a total angular misclosure of 1°30". Distributing the error equally, what is the correction applied to each interior angle?

Accepted Answer

15"

Answer

10"

Answer

20"

Answer

25"

Question 4

What does a low Geometric Dilution of Precision (GDOP) value indicate in GPS surveying?

Accepted Answer

Favorable satellite geometry yielding higher positional accuracy

Answer

Weak satellite signal strength

Answer

High atmospheric signal delay

Answer

Insufficient number of visible satellites

Question 5

A benchmark has an elevation of 450.25 ft. A backsight of 4.78 ft and a foresight of 6.12 ft are recorded at the next point. What is the elevation of the foresight point?

Accepted Answer

448.91 ft

Answer

449.91 ft

Answer

455.03 ft

Answer

461.15 ft

Question 6

Which of the following is classified as a systematic error in tape surveying?

Accepted Answer

Steel tape length error due to temperature variation from the calibration temperature

Answer

Transposing digits when recording a field measurement

Answer

Random wind vibration shifting the tape during measurement

Answer

Misidentifying a survey monument in the field

Question 7

A horizontal curve has R = 500 ft and central angle Δ = 60°. What is the tangent length T?

Accepted Answer

288.7 ft

Answer

250.0 ft

Answer

433.0 ft

Answer

500.0 ft