# GIS Questions and Answers – Map Language

This set of GIS Multiple Choice Questions & Answers (MCQs) focuses on “Map Language”.

1. Which factor sets limit on both the type and manner of information on a map?
a) size of the map
b) scale of the map
c) accuracy of the map
d) clarity of the map

Explanation: The representation of the features of the earth drawn to scale is known as a map. The approximate scale of the data is usually more important than the details of the map projection.

2. How is a tree represented on a map?
a) point
b) line
c) area
d) volume

Explanation: Spatial objects in the real world are occurring in four identifiable types namely, points, lines, areas and surfaces. Trees are discrete spatial features.

3. What is the vertical distance between a given point and the datum plane?
a) Height
b) Slope
c) Elevation
d) Rise

Explanation: Elevation is the vertical distance between a given point and the datum plane. Datum plane is the reference surface from which all elevations on a map are measured. Mean sea level is usually taken as the datum plane.

4. What is known as the difference in elevation of an area between tops of hills and bottoms of valleys?

a) Altitude of the Terrain
b) Relief of the Terrain
c) Elevation of the Terrain
d) Height of the Terrain

Explanation: The vertical difference in elevation between an object and its immediate surroundings is known as the height. The difference in altitude of an area between tops of hills and bottoms of valleys is known as relief of the terrain.

5. What is a contour line?
a) line connecting points of equal latitude
b) line connecting points of equal longitude
c) line connecting points of equal pressure
d) line connecting points of equal elevation

Explanation: Contour line is map line connecting points representing places on the earth’s surface that
have the same elevation.

6. Which among the following is an example for spatial data set?
a) numbers
b) characters
c) symbols
d) line

Explanation: The spatial data sets have primary data types as point, line or polygon. Numbers, characters and symbols are non-spatial data.

7. A point of known elevation and position indicated on a map by the letters B.M with the altitude given to the nearest foot is termed as:
a) Bottom Mark
b) Bench Mark
c) Bottom Margin
d) Bench Margin

Explanation: Bench Mark is usually used for surveying purposes. It is a point of known elevation and position.

8. Location represents the position of a point in a:
a) one-dimensional space
b) three-dimensional space
c) two-dimensional space
d) four-dimensional space

Explanation: Each location can be referenced by its locational coordinates. Latitude and longitude can be used to represent a location.

9. Which among the following is not a continuous data?
a) Hills
b) Ridges
c) Population
d) Cliffs

Explanation: All discrete features have a zero dimensionality but have some spatial dimension. The natural features like hills, ridges and cliffs can be described by their locations, the area they occupy, and how they are oriented with the addition of the third dimension. All these are considered as continuous surface features.

10. The difference in elevation represented by adjacent contour lines is termed as:
a) distance
b) contour interval
c) gap
d) horizontal interval

Explanation: The difference in elevation represented by adjacent contour lines is termed
as contour interval. It is not a horizontal distance.

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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