FUNDAMENTAL SURVEYING Angles, Bearings & Azimuths 3

Question 1

What is 'astronomic (true) north' based on?

Accepted Answer

The direction toward Earth's geographic (rotational) north pole

Answer

The direction of Earth's magnetic field

Answer

The nearest meridian in a state plane zone

Answer

The grid north of the NAD 83 datum

Question 2

In a traverse, the azimuth of each successive course is computed by:

Accepted Answer

Adding the previous azimuth to the deflection angle with sign

Answer

Subtracting interior angles from 180 degrees at each station

Answer

Multiplying the bearing angle by the course length

Answer

Dividing the closure by the number of courses

Question 3

A 6-sided closed traverse has interior angles summing to 722 degrees. The angular error of closure is:

Accepted Answer

2 degrees

Answer

-2 degrees

Answer

182 degrees

Answer

358 degrees

Question 4

The 'gon' (or 'grad') unit divides a full circle into how many parts?

Accepted Answer

400

Answer

360

Answer

100

Answer

6,400

Question 5

What is 'meridian convergence' in state plane surveying?

Accepted Answer

The angular difference between geodetic north and grid north at a given point

Answer

The difference between magnetic and grid north

Answer

The change in magnetic declination over time

Answer

The correction for the curvature of the Earth in leveling

Question 6

When a compass bearing is recorded as N 0 E, it means the line is directed:

Accepted Answer

Due north

Answer

Due east

Answer

Due south

Answer

Due west