Geographic Information Systems/GIS

Geographic Information Systems/GIS Interview Questions and Answers

Updated 16 Jul 2021

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Q1. You have 2 candles, each having burning time of 1 hour. How will you calculate time using these candles if you have to call someone when 45 minutes is over?

Ans.

To call someone after 45 minutes using 2 candles with 1 hour burning time each.

Light both candles at the same time
After 30 minutes, one candle will have burned halfway
When the first candle burns out, 30 minutes have passed
When the second candle burns out, 60 minutes have passed

Q2. How depth is your knowledge in GIS, PHOTOGRAMMETRY, PYTHON

Ans.

I have a strong understanding of GIS and photogrammetry, and I am proficient in Python.

I have experience working with ArcGIS and QGIS software.
I am familiar with remote sensing techniques and image analysis.
I have developed Python scripts for automating GIS tasks and data analysis.
I have worked on projects involving spatial data visualization and mapping.
I am constantly learning and staying up-to-date with new GIS technologies and techniques.

Q3. What is vector and raster data

Ans.

Vector data uses points, lines, and polygons to represent features, while raster data uses a grid of cells to represent data.

Vector data is used for representing discrete features such as roads, buildings, and rivers.
Raster data is used for representing continuous data such as elevation, temperature, and precipitation.
Vector data is more precise and accurate, while raster data is more efficient for large areas.
Examples of vector file formats include Shapefile, GeoJSON, and KM...read more

Q4. Types of gis and use of gis

Ans.

GIS can be categorized into desktop, web-based, mobile, and cloud-based. It is used for mapping, spatial analysis, and decision-making.

Desktop GIS: used for complex analysis and data management
Web-based GIS: used for sharing and accessing data online
Mobile GIS: used for data collection and fieldwork
Cloud-based GIS: used for scalable and collaborative projects
GIS is used in various industries such as urban planning, environmental management, and emergency response
Examples: Arc...read more

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Q5. What is TIN?

Ans.

TIN stands for Triangulated Irregular Network. It is a digital surface model that represents terrain as a set of contiguous, non-overlapping triangles.

TIN is a type of GIS data structure used to represent terrain surfaces.
It is created by connecting a set of irregularly spaced points with a series of triangles.
TIN is useful for analyzing terrain and creating 3D visualizations.
It can be used in various applications such as hydrology, geology, and urban planning.
Examples of sof...read more

Q6. 1. Can you name few Python library

Ans.

Python libraries for GIS include GeoPandas, Shapely, Fiona, PyProj, and Rasterio.

GeoPandas: for working with geospatial data in Python
Shapely: for manipulating and analyzing geometric objects
Fiona: for reading and writing geospatial data formats
PyProj: for converting between geographic and projected coordinates
Rasterio: for working with raster data

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Q7. What is GIS?

Ans.

GIS is a system designed to capture, store, manipulate, analyze, manage, and present spatial or geographic data.

GIS stands for Geographic Information System
It is used to analyze and manage spatial data
GIS can be used in various fields such as urban planning, environmental management, and emergency response
Examples of GIS software include ArcGIS, QGIS, and Google Earth
GIS data can be represented in various forms such as maps, charts, and graphs

Q8. What is mean by gis

Ans.

GIS stands for Geographic Information System, which is a computer system for capturing, storing, analyzing, and displaying data related to positions on Earth's surface.

GIS is used to create maps and visualize spatial data
It can be used in various fields such as urban planning, environmental management, and emergency response
GIS combines layers of information to give a better understanding of a location, such as population density, land use, and natural resources
Examples of GI...read more