GEODESY Exam Questions with Correct Answers 100% Verified 2024 The free-air gravity anomaly height correction for every meter above sea level is _____ mgal.
A. + 0.3086
B. - 0.3086
C. + 0.3608
- - 0.3608 - Correct Answer -0.3086
The forward and back azimuths of a geodetic line do NOT differ by exactly 180 degrees due to the
_____.
- location of the observer.
- length of observation
- convergence of the meridians
- difference in instruments - Correct Answer convergence of the meridians
- Parallax, changing
- Non-collimation, refocusing
- Parallax, refocusing
- Non-collimation, changing - Correct Answer parallax refocusing
- radio
- television
- facsimile
- telegraph - Correct Answer radio
- central 1 / 3
______ in a geodetic leveling instrument exists when the plane of the image and the plane of the cross-hairs do NOT coincide, and should be eliminated by _____ the objective, eyepiece, or both.
In a conventional GNSS RTK survey, the data transfer from the base to the rover can be made either through a ______ or a telephone link.
Grid azimuth is the same as geodetic azimuth only when the point of observation falls on the _______ meridian.
- Observer's
- Greenwich
- prime - Correct Answer central
A 2.5-km baseline is measured with an electronic total station. If the vendor's accuracy specification of the instrument is ± (5mm + 2ppm).calculate the accuracy of the measured distance to the nearest thousand.
A. 1/255,000
B. 1/245,000
C. 1/240,000
- 1/250,000 - Correct Answer 1/250000
- communication, planning
- line of sight, planning
- communication, control
- line of sight, control - Correct Answer line of sight, control
- observed
- unknown
- assumed
- fixed - Correct Answer observed
- geodetic
- grid
- magnetic
- astronomic - Correct Answer grid 2 / 3
In GNSS surveying, the direct _____ has to be with the satellites and not with the stations in the project ______network.
Free-air anomaly is the difference between the _____ gravity and theoretical gravity at a point.
The angle in the plane of projection between a straight line and the central meridian of a rectangular coordinate system is Called _______ azimuth.
Root mean square expresses the ______ of point measurements.
- accuracy
- precision
- closeness
- refinement - Correct Answer precision
- vertical, positive
- vertical, zero
- horizontal, zero
- horizontal, positive - Correct Answer vertical, zero
- 12
- 16
- 8
- 4 - Correct Answer 16
- back azimuth
- average elevation
- scale factor
- forward direction - Correct Answer scale factor
- / 3
When geoid and ellipsoid coincide at a datum origin,the deflection and the _____and the separation between the ellipsoid and geoid become _____ at the origin.
In classical triangulation, the procedure for first-order accuracy positioning requires ______ directions.
Grid length differs from geodetic length by the amount of a correction base on the ______ for the given line.
A 200-meter baseline distance is measured with an electronic total station. If the vendor's accuracy specification of the instrument is ±(5mm + 2ppm) calculate the precision of the measured distance to the