Consider the following statements regarding aerial photogrammetry : 1. Aerial photogrammetry has the ease with which topography of inaccessible areas can be detailed. 2. In aerial photogrammetry, there is possibility of omitting of few field data. Which of the above statements is/are correct ?
- A1 only
- B2 only
- CBoth 1 and 2Correct
- DNeither 1 nor 2
Solution
Concept
Features of aerial photogrammetry
Step-by-step solution
1. Photographs allow inaccessible areas to be mapped easily (true). 2. Some details (names, boundaries, hidden features) are not visible on photographs and may be omitted unless field completion is done (true).
Explanation
Aerial photogrammetry is fast and covers inaccessible terrain, but it needs field verification for details that cannot be seen.
Why the other options are wrong
Each statement is true, so the "only" and "neither" options are wrong.
Shortcut
Photogrammetry: fast, but needs field completion.
Correct answer: C) Both 1 and 2