GIS Question & AnswersJuly 1, 2021 By admin This article lists 100 GIS (Geographic Information System) MCQs for engineering students. All the GIS (Geographic Information System) Questions & Answers given below include a hint and wherever possible link to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on the GIS (Geographic Information System) topics.GIS stands for Geographic Information System, is a computerized tool that captures, manipulates, stores, presents, and manages the data related to geography. It was coined by Roger Tomlinson in the year 1968 and was given the title "The Father of GIS". GIS helps in decision-making, solves problems related to other geographic issues, and visualizes spatial environmental data. It represents the data related to space in form of maps like Google maps, Apple maps, and open street maps. This map includes spatial data in terms of where the physical things are exactly located, their quantities, densities, routes, nearby location, etc. GIS software applications can be downloaded on the user's smartphone or can be viewed on a computer system, which allows the user to perform analysis, spatial information, create searches, store data, edit data, and share the data visually. Few of the GIS applications are GMaps and OMaps. 1). GIS stands for _______.Geographic Information systemGeographic internal systemGlobal Information SystemNone of the aboveHintGIS stands for Geographic Information System. 2). GIS captures and analyses ______ data.SpatialGeographicBoth a and bNone of the aboveHintGIS captures and analyses geographical and special data. 3). GIS applications are ________ tools.MobileComputerMachineryNone of the aboveHintGIS applications are computer-based tools. 4). GIS tools allow the user to perform which of the following task?Create searchesStore dataEdit dataAll the aboveHintGIS tools allow the user to perform analyze spatial information, create searches, store data, edit data, and share the data visually. 5). Which of the following is a branch of the study of GIS concepts?Geographic information scienceGeographic scienceGeographic dataNone of the aboveHintGeographic information science is a branch that studies GIS concepts. 6). GIS represents unrelated information of location using _______.Key indexKey index variableKeyNone of the aboveHintGIS represents unrelated information of location using key index variables. 7). GIS represents a location in ______ dimensional coordinates.2345HintGIS represents location in 3-dimensional coordinates, “X, Y, Z” coordinates. 8). GIS represents X-coordinate in _______ direction.HorizontalVerticalTangentiallyNone of the aboveHintGIS represents X-coordinate in horizontal direction also called latitude. 9). GIS represents Y-coordinate in _______ direction.HorizontalVerticalTangentiallyNone of the aboveHintGIS represents Y-coordinate in vertical direction also called longitude. 10). GIS represents Z-coordinate in _______ direction.HorizontalVerticalTangentiallyNone of the aboveHintGIS represents Z-coordinate in the tangential direction to X and Y coordinate also called elevation. 11). Which of the following parameters using GIS are correlated to represent an earth’s physical location?LocationSpatial-temporalExtent referencesAll the aboveHintLocation, spatial-temporal, and extent reference are the parameters used to correlate the earth’s physical location using GIS. 12). GIS was coined by ________.Roger TomlinsonRoger JamesRichardNone of the aboveHintGIS was coined by Roger Tomlinson. 13). GIS was coined in the year ________.1986196819821990HintGIS was coined in the year 1968. 14). The scientist Roger Tomlinson who coined GIS was given ______ title.Father of GISFather of GlobeDoctorateNone of the aboveHintThe scientist Roger Tomlinson who coined GIS was given the title of father of GIS. 15). The scientist Roger Tomlinson firstly implemented GIS work on _______ geographic information system.CanadaUSAIndiaChinaHintThe scientist Roger Tomlinson firstly implemented GIS work on Canada's geographic information system. 16). The scientist Roger Tomlinson created ______ for analyzing and storing a large amount of data.DatabaseSD cardPen driveComputerHintThe scientist Roger Tomlinson created a database for analyzing and storing a large amount of data. 17). Modern GIS technology uses ______ type of information.AnalogDigitalBoth a and bNone of the aboveHintModern GIS technology uses a digital type of information. 18). Digital data in GIS is represented using ______ data creation methods.AnalogDigitalBoth a and bNone of the aboveHintDigital data in GIS is represented using digital data creation methods. 19). Which of the following are the digital data creation methods used for GIS data creation?DigitizationOrthorectified imageryDemodulationBoth a and bHintThe digital data creation methods used for GIS data creation are digitization and orthorectified imagery. 20). A process where a survey plan or hard copy is a map and is represented digital medium using geo-referencing capabilities and CAD tool is called ______ technique.DigitizationModulationDemodulationNone of the aboveHintA process where a survey plan or hard copy is a map and is represented digital medium using geo-referencing capabilities and a CAD tool is called a digitization technique. 21). The program used in the digitization technique is _________.CADGPSCJAVAHintThe program used in the digitization technique is CAD. 22). CAD in CAD tool stands for ________.Computer-aided designComputer alters designControl aided designNone of the aboveHintCAD in CAD tool stands for computer-aided design. 23). CAD is also named as ________.CADDCADBCCADNone of the aboveHintCAD is also named CADD- computer-aided design drafting. 24). CADD is abbreviated as ________.Computer-aided design draftingComputer alter design draftingComputer-aided develop draftingNone of the aboveHintCADD is abbreviated as computer-aided design drafting. 25). A CAD tool graphically represents the information in ______ dimensions.2D3DBoth a and bNone of the aboveHintA CAD tool graphically represents the information in 2D and 3D.GIS Exam Questions & Answers 26). Which of the following are CAD programs?Auto CADAuto CAD LTBoth a and bNone of the aboveHintCAD programs using Auto CAD and Auto CAD LT. 27). The process of capturing satellite image is called _______.OrthophotoOrtho photographOrtho imageAll the aboveHintThe process of capturing a satellite image is called Orthophoto. An orthophoto is also called an Ortho photograph or Ortho image. 28). Ortho rectified imaginary collects data from which of the following.UAVHelikitesAircraftAll the aboveHintOrthorectified imaginary collects data from helikites, UAVs, and aircraft. 29). UAV stands for _______.Unmanned aerial vehicleUni aerial vehicleUnmanned air vehicleNone of the aboveHintUAV stands for unmanned aerial vehicle. 30). Does UAV have a pilot driver?YesNoMaybeHintNo, UAV does not have a pilot driver. 31). UAV has _______ number of major components.2345HintUAV has 3 major components namely a ground-based controller, a UAV, and a communication system. 32). An aircraft flies using _______ support.AirWaterLandNone of the aboveHintAn aircraft flies using air support. 33). Which of the following are the examples of natural satellites?MoonStarPlanetsAll the aboveHintexamples of a natural satellite are the moon, star, and other planets. 34). Digitizing of ________ types.2345HintDigitizing of 2 types namely head down digitizing and head up digitizing. 35). Head up digitizing traces geographical data _____ way on top of aerial imagery.DirectlyIndirectlySeparatelyNone of the aboveHintHead-up digitizing traces geographical data directly on top of aerial imagery. 36). A traditional method traces geographical form using _______.DirectlyIndirectlyDigitizing tabletNone of the aboveHintA traditional method traces geographical form using a separate digitizing tablet. 37). Head down digitizing is also called as ________.Digitizing tabletManual digitizingStylusBoth a and bHintHead down digitizing is also called digitizing tablet and manual digitizing. 38). Head down digitizing tablet uses ______ component to feed information into the computer.StylusSpecial penSpecial magnetic penBoth a and cHintHead down digitizing uses a special magnetic pen also called a stylus component to feed information into the computer. 39). What is the next step after feeding information to a computer in down digitizing?It creates dataIt creates an identical digital mapIt creates reportNone of the aboveHintIn down digitizing a computer creates an identical digital map after feeding information to it. 40). A digitized tablet uses which of the following peripherals to feed data?Magnetic penPuckMouseAll the aboveHintA digitized tablet uses a magnetic pen, a mouse-like device named puck peripherals to feed data. 41). A puck has a ______ size window with crosshairs.BigSmallMediumNone of the aboveHintA puck has a small size window with crosshairs. 42). A puck has small size window with _______ hairs.StraightCrossVerticalHorizontalHintA puck has a small size window with crosshairs. 43). What is the function of the puck?Allows greater precisionPinpoints map featuresBoth a and bNone of the aboveHintThe function of the puck allows greater precision and pinpoints map features. 44). Which type of head digitizing is most commonly used?Heads upHeads downHead verticalNone of the aboveHintHead-up type digitizing is most commonly used. 45). Which type of head digitizing is rarely used?Heads upHeads downHead verticalNone of the aboveHintHead down type digitizing is rarely used. 46). Which of the following digitizing provides poor quality?Heads upHeads downHead verticalNone of the aboveHintHead down digitizing provides poor quality. 47). Which of the following is a GIS operation?GeodataGeoprocessingGlobal processingNone of the aboveHintGeoprocessing is a GIS operation. 48). What is the function of geoprocessing?Manipulates global dataManipulates spatial dataManipulates local dataNone of the aboveHintThe function of geoprocessing is it manipulates spatial data. 49). The input to geoprocessing is _______.DatasheetAlphanumericNumericAlphabetsHintThe input to geoprocessing is a datasheet. 50). Geoprocessing operation includes which of the following process?DefiningManagementAnalyses informationAll the aboveHintGeoprocessing operation takes input datasheet, processes, defines, manages, and analyses information for decision.GIS Interview Questions & Answers 51). What is the first step of geoprocessing?ProcessesManagementAnalyses informationAll the aboveHintThe first step of geoprocessing is it processes the input datasheets. 52). GIS uses ______ as a key index variable for all other information.Space timeSpatio temporalBoth a and bSpaceHintGIS uses space-time also called spatio temporal as the key index variable for all other information. 53). A rational database contains ________.NumbersTextsImagesBoth a and bHintA rational database contains either numbers or texts. 54). GIS either unrelated or relates location information using ________.IndexKey Index variableIndex pointerNone of the aboveHintGis either un-relates or relates location information using a key index variable. 55). The key index is the extent in ______ time.SpaceOrbitSatelliteEarthHintThe key index is the extent in space time. 56). Earths location can be recorded in terms of _______ parameters.DateTimeCalendarBoth a and bHintEarth's location can be recorded in terms of time and date parameters. 57). Earth's location recorded in terms of time and date parameters are based on which of the following reference.LatitudeLongitudeElevationAll the aboveHintEarth's location recorded in terms of time and date parameters are based on elevation, longitude, and latitude. 58). A GIS coordinates can represent which of the following systems?Highway mile markerSurveyor benchmarkEntrance gateAll the aboveHintA GIS coordinates can represent highway mile marker, surveyor benchmark, and entrance gate. 59). GIS accuracy depends on _______.The encoded processSource dataBoth a and bLocationHintGIS accuracy depends on source data and the encoding process. 60). Which of the following surveys provided high accuracy with GPS derived positions?LandWaterFarm areasNone of the aboveHintLand surveys provided high accuracy with GPS-derived positions. 61). Which of the following are considered while developing a digital topographic database for GIS?Aerial photographySatellite imageryTopographical mapsAll the aboveHintAerial photography, satellite imagery, and topographical maps are considered while developing a digital topographic database for GIS. 62). Topography deals with _______ of earth surface.ShapeCharacteristicLocationBoth a and bHintTopography deals with the characteristics and shape of the earth's surface. 63). Topographic map is also called _________.Topographic sheetTopographic moduleTopographic paperNone of the aboveHintA topographic map is also called a topographic sheet. 64). Aerial photography is also called as ________.Airborne imageryAirborne sheetAir imageryAll the aboveHintAerial photography is also called airborne imagery. 65). What is the function of airborne imagery?Takes photographs from aircraftObserves aircraftMonitors dataAll the aboveHintThe function of airborne imagery is to takes photographs from aircraft. 66). Airborne imagery takes aerial photographs using _________ resources.BalloonsAircraftsBlimpsAll the aboveHintAirborne imagery takes aerial photographs uses balloons, aircraft, and blimps as resources. 67). __________ can remotely trigger special photographs.Mounted camerasCamerasDigital deviceNone of the aboveHintMounted cameras can remotely trigger special photographs. 68). Is air-to-air photography and aerial photography similar?YesNoMybeHintNo, air to air photography and aerial photography are not similar. 69). _______ determines the fidelity of the represented colors in raster graphics.Color depthColor brightnessColor dimensionsAll the aboveHintColor depth determines the fidelity of the represented colors in raster graphics. 70). _______ determines the range of the color coverage in raster graphics.Color spaceColor brightnessColor dimensionsAll the aboveHintColor space determines the range of color coverage in raster graphics. 71). Air to air photography uses _________ number of aircraft.0231 or moreHintAir to air photography uses one or more aircraft. 72). A chase plane is a _______.SatelliteAircraftBoatNone of the aboveHintA chase plane is an aircraft. 73). Which of the following are the types of aerial photography?ObliqueVerticalHorizontalBoth a and bHintThe 2 types of aerial photography are oblique and vertical. 74). Oblique photographs are taken in an _______ direction.HorizontalVerticalAngledNone of the aboveHintOblique photographs are taken in an angled direction. 75). If an oblique photograph is taken at a low angle relative then it is called as ________ oblique.HighLowPerpendicularNone of the aboveHintIf an oblique photograph is taken at a low angle relative then it is called a low oblique.GIS MCQs with Answers 76). If an oblique photograph is taken at a high angle relative then it is called as ________ oblique.HighLowPerpendicularNone of the aboveHintIf an oblique photograph is taken at a high angle relative then it is called a high oblique. 77). A high oblique is also called _________.Steep obliqueEvaluate obliqueUpper obliqueBoth a and bHintA high oblique is also called a steep oblique. 78). Vertical photographs are taken in ________ direction.Straight upStraight downVerticallyHorizontallyHintA vertical photograph is taken in a straight-down direction. 79). Which of the following are the applications of vertical photography?PhotogrammetryImage interpretationBoth a and bNone of the aboveHintThe applications of vertical photography are image interpretation and photogrammetry. 80). ______ is technology and science of obtaining reliable information regarding environment and physical objects.PhotogrammetryImage interpretationBoth a and bNone of the aboveHintPhotogrammetry is a technology and science of obtaining reliable information regarding the environment and physical objects. 81). Which of the following process are included in photogrammetry?RecordingMeasuringInterpretingAll the aboveHintThe processes that are included in photogrammetry are recording, measuring, and interpreting patterns of EM radiation and photographic images. 82). Photogrammetry interprets which of the following data?EM radiationPhotographic imagesBoth a and bRadiationHintPhotogrammetry interprets EM radiation and photographic images. 83). Photogrammetry was proposed by __________.F. AragoFlemingsHarvardHenryHintPhotogrammetry was proposed by F. Arago. 84). F. Arago was a _______ surveyor.FrenchGermanIndianDutchHintF. Arago. was a French surveyor. 85). Photogrammetry methods include which of the following data _______.ProjectiveOpticsGeometryAll the aboveHintPhotogrammetry methods include optics, projective, and geometry. 86). 3D coordinates defines object location in ______ space.3D2D1DBoth a and bHint3D coordinates define object location in 3D space. 87). _______ orientation of camera defines the space location and view direction.Inner orientationExterior orientationBoth a and bNone of the aboveHintAn exterior orientation of the camera defines the space location and view direction. 88). ______ orientation defines geometric parameters of the imaging process.Inner orientationExterior orientationBoth a and bNone of the aboveHintInner orientation defines geometric parameters of the imaging process. 89). ______ is a case of estimating 3D coordinates of points on an object employing measurements made in 2 or more photographic images taken from different positions.StereophotogrammetryGeometryCoordinate photogrammetryAll the aboveHintStereophpotogrammetry is a case of estimating 3D coordinates of points on an object employing measurements made in 2 or more photographic images taken from different positions. 90). Which of the following are the applications of stereophpotogrammetry?Culture heritagePolice investigationArchitecture engineeringAll the aboveHintThe applications of stereophotogrammetry are culture heritage, police investigation, and architecture engineering. 91). Which of the following are the applications of web mapping?Google mapsBing mapsOpen street MapsAll the aboveHintThe applications of web mapping are Google Maps, Bing Maps, and Open street maps. 92). GIS represents data of ________.TreesWater bodiesLandsAll the aboveHintGIS represents data of all physical objects like land, water bodies, trees, etc. 93). Do GIS represent a non existing object?YesNoMaybeHintNo, GIS does not represent a nonexisting object. 94). Which of the following are traditional methods to store GIS data?Vector graphicsRaster imagesBoth a and bNone of the aboveHintVector graphics and Raster images are the 2 traditional methods to store GIS data. 95). Raster graphic in GIS represents data in _______ data structure.Plane matrixDot-matrixContinuous matrixNone of the aboveHintRaster graphic in GIS represents data in dot matrix data structure. 96). Raster graphic in GIS represents data in ______ grid of pixels.CircularRectangularSquareAll the aboveHintRaster graphic in GIS represents data in a rectangular grid of pixels. 97). Raster graphic in GIS stores image files with varying _______ formats.DimensionsGenerationProductionAll the aboveHintRaster graphic in GIS stores image files with varying acquisition dimensions, generation, and production formats. 98). Which of the following industries knows raster graphic as contones?PrepressPrintingTradingBoth a and bHintBoth prepress and printing industries know raster graphics as contones. 99). A bitmap image is represented as ________ grid.CircularRectangularSquareAll the aboveHintA bitmap image is represented as a rectangular grid 100). Which of the following are common pixel formats in Raster graphics?GrayscaleFull coloredPalettizedAll the aboveHintGrayscale, full-colored, and palettized are common pixel formats in raster graphics. Time is Up!