In Map versus Aerial photograph, due to
symbolic representation the clarity of details
is
(a) less on map than on a photo
(b) more on map than on a photo
(c) less on a photo than on map
(d) more on a photo than on map
Ans. (b)
Differences between Map and Aerial
Photograph,
1. The map is an orthographic projection, whereas an aerial photograph
is a central
projection, i.e. perspective projection.
2. The map has a single constant scale, whereas it varies from point to
point depending
upon their elevations in an aerial photograph. In the case of the
photograph, the
terrain area which has higher elevation is closer to the camera and
therefore appears larger than the terrains area laying at a lower
elevation.
3. The number of details on a map are selective whereas in a aerial
photograph there
is a large number of details.
4. Due to the symbolic representation, the clarity of details is more
on the maps than
on photo.
next
Question-Answer civil engineering study
Other Important Topic Related to Surveying in Civil engineering
The goal of Civil Engineering Study vk is only to provide contents related to civil engineering that will useful for all civil engineering students who are ready to prepare for Exams
0 Comments