FUNDAMENTAL SURVEYING Mathematics and Statistics 3

Question 1

What is the azimuth of a line with a bearing of S 60° W?

Accepted Answer

240°

Answer

120°

Answer

300°

Answer

60°

Question 2

The latitude (ΔN) of a line 300 ft long with bearing N 40° E is approximately:

Accepted Answer

229.8 ft

Answer

192.8 ft

Answer

300.0 ft

Answer

257.1 ft

Question 3

Which of the following is NOT a systematic error in surveying?

Accepted Answer

A random blunder in reading a rod

Answer

EDM calibration error

Answer

Temperature effects on steel tape

Answer

Collimation error in a level

Question 4

What is the weighted mean of two measurements 10.50 (weight 1) and 10.60 (weight 3)?

Accepted Answer

10.575

Answer

10.550

Answer

10.525

Answer

10.600

Question 5

A closed traverse has a total latitude error of +0.30 ft and total departure error of +0.40 ft. What is the linear closure?

Accepted Answer

0.50 ft

Answer

0.70 ft

Answer

0.35 ft

Answer

0.25 ft

Question 6

What does a residual (v) represent in a least squares adjustment?

Accepted Answer

The difference between the adjusted value and the observed value

Answer

The difference between two independent measurements

Answer

The total error in the network

Answer

A blunder in the observation set