Surveying If α is the observed altitude, the refraction correction in seconds, is 58 cos α 58" cot α 58 sin α 58" tan α 58 cos α 58" cot α 58 sin α 58" tan α ANSWER DOWNLOAD EXAMIANS APP
Surveying The correction applied to the measured base of length ‘L’ is Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports Tension = (P - Ps)L/AE Sag = L³w²/24P² where w is the weight of tape/m All of these Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports Tension = (P - Ps)L/AE Sag = L³w²/24P² where w is the weight of tape/m All of these ANSWER DOWNLOAD EXAMIANS APP
Surveying The principal plane contains Nadir point Principal point All of these Iso-centre Nadir point Principal point All of these Iso-centre ANSWER DOWNLOAD EXAMIANS APP
Surveying Polaris is usually observed for the determination of the latitude when it is Neither at culmination nor at elongation At elongation At culmination Either at culmination or at elongation Neither at culmination nor at elongation At elongation At culmination Either at culmination or at elongation ANSWER DOWNLOAD EXAMIANS APP
Surveying Cross staff is an instrument used for measuring bearings of the lines measuring approximate horizontal angles setting out right angles None of these measuring bearings of the lines measuring approximate horizontal angles setting out right angles None of these ANSWER DOWNLOAD EXAMIANS APP
Surveying The latitude (λ) of a place and the altitude (α) of the pole are related by λ = α λ = 90° - α λ = 180° - α λ = α - 90° λ = α λ = 90° - α λ = 180° - α λ = α - 90° ANSWER DOWNLOAD EXAMIANS APP
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