This set of GIS Multiple Choice Questions & Answers (MCQs) focuses on “Linkage of GIS to Remote Sensing”.
1. What kind of spatial systems are used to guide taxis and emergency services to their destination?
a) Computer-linked
b) Mobile phone-linked
c) Satellite-linked
d) Vehicle-linked
View Answer
Explanation: Today maps are not just made using GIS, but the infrastructure of utilities in the streets of our towns will be held in a GIS. Your taxis and emergency services may be guided to their destination using satellite-linked spatial systems.
2. The foresters and farmers monitor their standing crops with spatial information systems. True or false?
a) True
b) False
View Answer
Explanation: Natural resources management developments and environmental management strategies may be compared with the integration of satellite data while processing results.
3. Which methods are used to derive images that provide spatial information and major data as an input to GIS?
a) Platform based remote sensing systems
b) Ground based remote sensing systems
c) Optical and digital remote sensing systems
d) Analysis by human eye
View Answer
Explanation: Raw geographical data are available in many different analogue or digital forms like maps, aerial photographs, and satellite images. Images derived from optical and digital remote sensing systems mounted in aircraft and satellites provide much spatial information and major data as an input to GIS.
4. Since digital remote sensing images are collected in a raster format, digital images are inherently compatible spatially with other sources of information in a:
a) Raster Domain
b) Vector Domain
c) Digital Domain
d) Spatial Domain
View Answer
Explanation: “Raw” images can be directly and easily included as layers in a raster-based GIS. Similarly, such image processing procedures as automated land cover classification result in the creation of interpreted or derived data files in a raster format. These derived data are again inherently compatible with the other sources of data represented in a raster format.
5. The interaction between remote sensing and GIS techniques is _____ in nature.
a) four-way
b) three-way
c) one-way
d) two-way
View Answer
Explanation: GIS information on elevation, slope, and aspect might be used to aid in the classification of forest types appearing in images acquired over areas of high relief. Thus, the interaction between remote sensing and GIS techniques is two-way in nature.
6. Remote sensing images need not be digital in format to be of any value in a GIS environment. True or false?
a) True
b) False
View Answer
Explanation: Visual interpretation of hardcopy images is used extensively to locate specific features and conditions, which are then subsequently geocoded for inclusion in a GIS.
7. There are two methods of extracting data for GIS from the remote sensing data. They are, Visual interpretation of satellite imageries in pictorial format, and:
a) Arithmetic methods
b) Manual methods
c) Computer processing
d) Probabilistic methods
View Answer
Explanation: Computer processing of remotely sensed digital data. The output of either of these analysis methods can be considered an input for GIS for any kind of application.
8. What is the type of data which includes drainage, slope, contour, etc.?
a) Conventional Data
b) Vector Data
c) Pictorial Data
d) Digital Data
View Answer
Explanation: Conventional data is fed into the digitisation manual and computerised. Visual interpretation technique is used for pictorial data. Digital image processing is done after collecting digital data.
9. What is the purpose of AutoCAD and micro-station in remote sensing and GIS?
a) Drawing of maps
b) Conversion of vector to raster and vice versa
c) Locating points
d) Finding dimensions
View Answer
Explanation: The data which passes through AutoCAD and micro-station will be the input for the GIS.
10. GIS output is available to users after the:
a) Automation
b) Production of Maps
c) Analysis of Data
d) Cartographic Modelling
View Answer
Explanation: Users will be able to understand the output if it is in the form of maps.
Sanfoundry Global Education & Learning Series – GIS.
To practice all areas of GIS, here is complete set of Multiple Choice Questions and Answers.
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