62.
The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is

65.
The parallax equation $$\Delta {\text{p}} = \frac{{{\text{Bm}}\Delta {\text{h}}}}{{{\text{H}} - {\text{h}}}}$$   is applicable to entire overlap of the photographs only if parallax is measured

66.
If the length of a chain is found to be short on testing, it can be adjusted by

Read More Section(Surveying)

Each Section contains maximum 100 MCQs question on Surveying. To get more questions visit other sections.