Surveying
The methods used for locating the plane table stations arei) radiationii) traversingiii) intersectioniv) resectionThe correct answer is

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

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Surveying
Spring tides are caused when

Solar tidal force and lunar tidal force both coincide
None of these
Sun and moon are in line with earth
Solar tidal force acts opposite to lunar tidal force

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Surveying
The cross hairs in the surveying telescope are placed

much closer to the objective lens than to the eye piece
much closer to the eye-piece than to the objective lens
midway between eye piece and objec-tive lens
anywhere between eye-piece and objective lens

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