NCCER SURVEYING SITE LAYOUT EXAM REVIEW 2024
Backsight - ANS-when measuring angles, the sight taken with the instrument or line being used as
the starting point.
benchmark - ANS-permanent reference point with a precisely determined elevation
datum - ANS-permanent horizontal & vertical referenc...
NCCER SURVEYING SITE LAYOUT EXAM REVIEW 2024
Backsight - ANS-✔✔when measuring angles, the sight taken with the instrument or line being used as
the starting point.
benchmark - ANS-✔✔permanent reference point with a precisely determined elevation
datum - ANS-✔✔permanent horizontal & vertical reference for a project.
relief - ANS-✔✔the difference in elevation between the highest and lowest parts of an area
traverse - ANS-✔✔measurement of a continuous series of angles or distances
Control surveys - ANS-✔✔Establish a network of horizontal and vertical monuments that serve as a
reference framework for initiating other surveys.
preliminary surveys - ANS-✔✔used to locate existing natural or man-made features
Longitude - ANS-✔✔distance north or south of the Equator, measured in degrees
latitude - ANS-✔✔Distance east or west of the prime meridian, measured in degrees
Prime Meridian - ANS-✔✔The meridian, designated at 0° longitude, which passes through the Royal
Observatory at Greenwich, England.
International Date Line - ANS-✔✔An arc that for the most part follows 180° longitude, although it
deviates in several places to avoid dividing land areas. When you cross the International Date Line
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