Quiz on Spatial Data Accuracy

What is the primary goal of spatial data editing?

• To simplify data formats

• To ensure accuracy and usability

• To create new data sources

• To increase data volume

What does the Root Mean Square (RMS) error measure?

• The speed of data processing

• The cost of data acquisition

• The amount of data collected

• The quality of a geometric transformation

Which transformation method preserves both shape and area?

• Affine

• Projective

• Equiarea

• Similarity

What is required for an affine transformation to estimate its coefficients?

• One control point

• Two control points

• Three control points

• Four control points

What is the main difference between accuracy and precision?

• Accuracy is about data quality, precision is about data volume

• Accuracy is about data volume, precision is about data quality

• Accuracy relates to conformity, precision relates to detail

• Accuracy relates to detail, precision relates to conformity

What type of error occurs when a digitized line does not connect properly with another line?

• Overshoots and Undershoots

• Slivers

• Switchbacks

• Dangles

What is a common source of errors in GIS data?

• Automated data entry

• High-resolution imagery

• Standardized measurements

• Outdated data

What is the purpose of generalization in GIS?

• To create more complex datasets

• To enhance data accuracy

• To increase the detail of data

• To simplify data for a specific scale

Which of the following is NOT a type of digitizing error?

• Overshoots

• Generalization

• Slivers

• Dangles

What is the basic requirement for GIS applications?

• High data volume

• Accurate and good-quality spatial data

• Rapid data processing

• Complex data structures