Surveying
The graduations in prismatic compassi) are invertedii) are uprightiii) run clockwise having 0° at southiv) run clockwise having 0° at northThe correct answer is

(ii) and (iii)
(ii) and (iv)
(i) and (iv)
(i) and (iii)

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Surveying
Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.

By subtracting their longitudes if places are in the same hemisphere
All of these
By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
By adding their longitudes if places are in the different hemispheres

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Surveying
The First Point of Aeries

Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda
All listed here
Is usually denoted by the Greek letter ?
Is the point in the celestial sphere where zero meridian crosses the celestial equator

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