This set of GIS Multiple Choice Questions & Answers (MCQs) focuses on “Graphic Representation of Spatial Data”.
1. What is known as the element in reality?
a) Thing
b) Object
c) Entity
d) Existent
View Answer
Explanation: An entity is the element in reality. It is a phenomenon of interest in reality that is not further subdivided into phenomena of the same kind.
2. A city cannot be considered as an entity. True or false?
a) True
b) False
View Answer
Explanation: Entity is a phenomenon of interest in reality that is not further subdivided into phenomena of the same kind. For example, a city can be considered an entity.
3. Which among the following is not one of the main entity types which are used to represent geographical phenomena in two dimensions?
a) Points
b) Areas
c) Volume
d) Lines
View Answer
Explanation: All geographical phenomena can be represented in two dimensions by three main entity types: points, lines, and areas. A spatial data model could be constructed using points, lines, and areas.
4. A surface entity is used to represent _____ features or phenomena.
a) continuous
b) spatial
c) areal
d) discrete
View Answer
Explanation: A surface entity is used to represent continuous features or phenomena. For these features there is a measurement or value at every location, as in the case of elevation, temperature and population density.
5. A network is a series of interconnecting lines along which there is a flow of:
a) entities
b) points
c) information
d) data
View Answer
Explanation: A network is a series of interconnecting lines along which there is a flow of data, objects or materials, for example, the road network, along which there is a flow of traffic to and from the areas.
6. River is an example for networks. True or false?
a) True
b) False
View Answer
Explanation: A network is a series of interconnecting lines along which there is a flow of data. For example a river, along which there is a flow of water.
7. The way in which individuals represent a spatial feature in two dimensions will have a lot to do with their:
a) learning ability
b) knowledge
c) experience
d) imagination
View Answer
Explanation: Deciding which entity type should be used to model a real-world feature is not always straightforward. The way in which individuals represent a spatial feature in two dimensions will have a lot to do with how they conceptualise the feature. In turn this will be related to their own experience.
8. Which is the fundamental method of representing GIS entities?
a) Raster Method
b) GIS Method
c) Mapping Method
d) Drawing Method
View Answer
Explanation: There are two fundamental methods of representing geographical entities. They are Raster method and Vector method.
9. Many real-world features simply do not fit into the categories of entities available. True or false?
a) True
b) False
View Answer
Explanation: The definition of entity types for real-world features is also hampered by the fact that many real-world features simply do not fit into the categories of entities available.
10. Vegetation to an ecologist may be a continuous feature, whereas vegetation to a forest is better represented as:
a) linear data
b) series of discrete area entities
c) continuous points
d) flow of data
View Answer
Explanation: Vegetation to an ecologist may be a continuous feature (which could be represented by a surface), whereas vegetation to a forest is better represented as series of discrete area entities.
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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