Surveying and Geomatics Exam Prep
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Surveying and Geomatics Exam Prep
English 21 leveled MCQs Free
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10 marks Long answer
Explain the fundamental properties of electromagnetic waves used in EDM, and detail how distance is measured using transit time and reflector setups.
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Electromagnetic waves have properties like wavelength and frequency; distance is measured by calculating the transit time of waves reflected from a target.
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10 marks Long answer
What is a Total Station? Describe its primary applications, advantages, and overall uses in modern surveying.
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A Total Station is an electronic surveying instrument that combines the functions of a theodolite and EDM, used for precise measurements in surveying.
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10 marks Long answer
Explain the Global Positioning System (GPS): Architecture, working principle, and primary categories of applications.
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GPS architecture includes satellites, ground control stations, and receivers; it works by triangulating signals to determine location.
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10 marks Long answer
Analyze the primary error sources and biases that degrade GPS positioning accuracy.
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GPS accuracy is affected by multipath errors, atmospheric delays, and satellite geometry.
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10 marks Long answer
Discuss the concept of Geographical Information Systems (GIS), its definitions, and its components including Geographic Referencing (Datums and Projections).
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GIS integrates hardware, software, and data for spatial analysis; it uses datums for geographic referencing and projections for mapping.
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10 marks Long answer
Explain the process of creating a GIS, focusing heavily on spatial data input, vector data capture, and topology building.
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Creating a GIS involves collecting spatial data, capturing vector data, and building topology for spatial relationships.
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10 marks Long answer
Explain the nature of GIS geographic analysis, focusing on map layer overlays, data storage mechanisms, and practical applications in resource management.
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GIS analysis uses map overlays to combine data layers, employs various storage mechanisms, and aids in resource management decisions.
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4 marks Medium answer
Classify Electronic Distance Measurement (EDM) instruments based on their carrier waves and state their basic characteristics.
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EDM instruments can be classified into microwave and infrared types, each with distinct characteristics.
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4 marks Medium answer
List the primary errors that affect Electronic Distance Measurement (EDM) instruments.
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Errors include systematic errors, random errors, and environmental errors.
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4 marks Medium answer
What are the main capabilities and data processing features of a Total Station?
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Total Stations measure angles and distances, and process data for surveying tasks.
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4 marks Medium answer
Describe the three distinct segments that comprise the Global Positioning System (GPS) configuration.
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The segments are the space segment, control segment, and user segment.
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4 marks Medium answer
Explain the Dilution of Precision (DOP) and list its different types.
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DOP measures the effect of satellite geometry on GPS accuracy; types include GDOP, PDOP, HDOP, and VDOP.
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4 marks Medium answer
What are the fundamental differences between Vector and Raster representations of spatial data in GIS?
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Vector represents data as points, lines, and polygons; raster represents data as a grid of cells.
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4 marks Medium answer
Outline the five basic questions that a complete Geographic Information System (GIS) must be able to answer.
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GIS must answer where, what, when, how, and why questions regarding spatial data.
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2 marks Short answer
What does EDM stand for in surveying?
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Electronic Distance Measurement
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2 marks Short answer
Which electromagnetic waves are useful for distance measurement?
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Microwaves
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2 marks Short answer
What trade name is used for infrared wave instruments?
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Laser
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2 marks Short answer
What is the full form of GPS as a NAVSTAR acronym?
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Global Positioning System
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2 marks Short answer
How many satellites make up the GPS space segment constellation?
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24
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2 marks Short answer
What does GIS stand for?
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Geographic Information System
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2 marks Short answer
Which projection is commonly used by the Survey of India (SOI) for its toposheets?
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Universal Transverse Mercator (UTM)
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