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

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

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Surveying
Dumpy level is most suitable when

the instrument is to be shifted frequently
fly levelling is being done over long distance
many readings are to be taken from a single setting of the instrument
All of these

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