Preview Questions Surveyor (Land/Topographical) | Role Specific Skill

Question 1: Which of the following satellite-based techniques can provide the most accurate topographic measurements in remote regions?

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Synthetic Aperture Radar (SAR)

Terrestrial LiDAR

Aerial photogrammetry

Differential GPS (DGPS)

Question 2: In a site survey, when performing line-of-sight analysis, which factor has the greatest impact on survey accuracy?

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The surrounding terrain and obstacles

The angle of the line of sight

The height of the survey instrument

The quality of the GPS signal

Question 3: In 3D terrain modeling, what is the primary difference between vector and raster data formats?

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Vector data represents discrete points, lines, and polygons, while raster data represents continuous surfaces

Raster data is more accurate for elevation data than vector data

Vector data is based on grid cells, while raster data is based on points

Vector data can only be used for urban areas, while raster data is used in rural areas

Question 4: What is the significance of spatial resolution in satellite-based mapping?

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It measures the horizontal distance between points

It defines the level of detail in the data collected

It reduces the processing time of collected data

It adjusts the elevation accuracy

Question 5: Which of the following technological advancements significantly improves the accuracy and efficiency of boundary determinations?

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Ground penetrating radar (GPR)

GNSS (Global Navigation Satellite Systems)

Total station surveys

UAV-based photogrammetry

Question 6: When conducting geospatial data analysis for land parcel boundaries, which type of coordinate system is typically preferred for survey accuracy?

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Universal Transverse Mercator (UTM)

Cartesian coordinate system

Alphanumeric grid systems

Geographic coordinate system (latitude and longitude)