Map Projections
EXERCISE
1. Choose the right answer from the four alternatives given below:
A map projection least suitable for the world map:
(a) Mercator
(b) Simple Cylindrical
(c) Conical
(d) All the above
A map projection that is neither the equal area nor the correct shape and even the directions are also incorrect
(a) Simple Conical
(b) Polar zenithal
(c) Mercator
(d) Cylindrical
A map projection having correct direction and correct shape but area greatly exaggerated polewards is
(a) Cylindrical Equal Area
(b) Mercator
(c) Conical
(d) All the above
When the source of light is placed at the centre of the globe, the resultant projection is called
(a) Orthographic
(b) Stereographic
(c) Gnomonic
(d) All the above
2. Answer the following questions in about 30 words:
I. Describe the elements of map projection.
II. What do you mean by global property?
III. Not a single map projection represents the globe truly. Why?
IV. How is the area kept equal in cylindrical equal area projection?
3. Differentiate between—
I. Developable and non-developable surfaces
II. Homolographic and orthographic projections
III. Normal and oblique projections
IV. Parallels of latitude and meridians of longitude
4. Answer the following questions in not more than 125 words:
I. Discuss the criteria used for classifying map projection and state the major characteristics of each type of projection.
II. Which map projection is very useful for navigational purposes? Explain the properties and limitations of this projection.
III. Discuss the main properties of conical projection with one standard parallel and describe its major limitations.