Surveying
In direct method of contouring, the process of locating or identifying points lying on a contour is called

vertical control
ranging
horizontal control
centring

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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
anywhere between eye-piece and objective lens
midway between eye piece and objec-tive lens

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