ETC ETC Surveying & Site Measurement 2

Question 1

What is the purpose of a topographic survey?

Accepted Answer

To map the elevations and contours of the land surface

Answer

To determine legal property boundaries

Answer

To locate underground utilities

Answer

To verify as-built dimensions

Question 2

In differential leveling, what does backsight (BS) refer to?

Accepted Answer

A rod reading taken on a point of known elevation to establish the instrument height

Answer

A reading taken looking back toward the previous traverse station

Answer

The final rod reading at the project endpoint

Answer

A correction applied after instrument error is detected

Question 3

What instrument measures both horizontal and vertical angles and is commonly used for triangulation surveys?

Accepted Answer

Theodolite

Answer

Auto level

Answer

Hand level

Answer

Planimeter

Question 4

What is a rod reading in differential leveling?

Accepted Answer

The graduated staff measurement read through the level to determine elevation difference

Answer

The iron pin driven to mark a survey corner

Answer

The distance measured with a measuring tape

Answer

The height of the instrument above the ground

Question 5

What does cut and fill mean in site grading work?

Accepted Answer

Excavating high areas and using that material to build up low areas

Answer

Cutting formwork and filling it with concrete

Answer

Trimming survey stakes and filling in survey notes

Answer

Removing topsoil and replacing it with compacted subbase

Question 6

Which coordinate system is commonly used on US construction drawings for specifying grid layout?

Accepted Answer

State Plane Coordinate System

Answer

UTM (Universal Transverse Mercator)

Answer

Geographic decimal degrees

Answer

Local assumed coordinates only