Remote sensing involves collecting data about the Earth’s surface using satellites, aircraft, or drones. It is useful for large-scale surveys, environmental monitoring, and geographic mapping.
What does a GIS (Geographic Information System) help with?
A Calculate volume
B Measure distance
C Analyze spatial data
D Measure elevation
GIS is used to capture, analyze, and manage spatial data, helping to create maps, analyze patterns, and manage geographic information for surveying, planning, and environmental studies.
What is photogrammetry used for in surveying?
A Create 3D models from photos
B Plot data on maps
C Measure horizontal angles
D Measure elevation
Photogrammetry is used to create accurate 3D models from photographs. It involves capturing aerial or ground-based images and using software to extract spatial data for mapping and modeling.
What is the purpose of a cadastral survey?
A Measure water depth
B Establish land ownership boundaries
C Measure distances
D Plot roads
A cadastral survey is used to establish property boundaries and document land ownership. It is vital for legal purposes, including land registration, property sales, and dispute resolution.
What does survey plotting help to do?
A Determine elevation
B Measure distance
C Analyze terrain
D Create visual representations of data
Survey plotting converts field measurements and data into maps, drawings, or diagrams, providing a visual representation of the surveyed area for analysis, planning, and design.
What is accuracy in surveying?
A Correctness of measurements
B Consistency of measurements
C Precision of measurement tools
D The distance between two points
Accuracy in surveying refers to how close a measured value is to the true or accepted value. It ensures that survey data is reliable for construction, planning, and legal purposes.
What is error analysis in surveying used for?
A Plot data on maps
B Correct measurement units
C Identify and minimize measurement errors
D Calculate land area
Error analysis helps identify and quantify errors in surveying measurements. It is essential for improving measurement reliability and ensuring that surveys are accurate and precise.
What is chain surveying used for?
A Measure vertical distances
B Measure horizontal distances
C Measure angles
D Create topographic maps
Chain surveying is used to measure horizontal distances on the ground, typically with a measuring chain or tape. It is ideal for simple, small-scale surveys where precision is not critical.
What is a tape used for in surveying?
A Measuring vertical angles
B Measuring area
C Measuring volume
D Measuring horizontal distances
A measuring tape is used for measuring horizontal distances. It is flexible and accurate for measuring relatively short distances in field surveys, especially in construction and boundary surveys.
What is the purpose of using a total station in surveying?
A Measure both angles and distances
B Plot data
C Measure angles only
D Measure distances only
A total station combines the functions of a theodolite and an EDM (Electronic Distance Measurement), allowing surveyors to take accurate measurements and establish control points efficiently.
What is the primary function of a clinometer in surveying?
A Measure distances
B Plot data
C Measure slope or elevation change
D Measure angles
A clinometer measures the angle of slope or the change in elevation between two points. It is often used in construction, forestry, and geological surveys.
What type of survey is used for measuring boundary lines?
A Topographic survey
B Cadastral survey
C Plane table survey
D Hydrographic survey
Cadastral surveys are used to measure and define the boundaries of land parcels. These surveys are critical for land ownership records, property transfers, and legal disputes.
What does a topographic survey measure?
A Property boundaries
B Water depth
C Terrain features and elevation
D Horizontal distances
A topographic survey measures the features of the land surface, including elevation changes, natural features like rivers and forests, and man-made structures such as roads and buildings.
What is the function of remote sensing in GIS?
A Capture data from satellites
B Plot survey data
C Measure angles
D Measure distance
Remote sensing in GIS uses satellite or aerial imagery to capture large-scale data, which is then analyzed for mapping, monitoring, and decision-making processes in environmental and urban planning.
What does photogrammetry help to create?
A 2D maps
B Determine elevation
C 3D models and maps
D Plot distances
Photogrammetry involves using photographs to create accurate 3D models and maps. It is useful in mapping large areas, construction planning, and environmental studies, providing detailed spatial data.