Surveying α and β are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being ‘S’ and ‘f’ respectively. Parallax displacement of the point due to relief, is h tan α/S h (tan α + tan β)/S h tan β/S h (tan α - tan β)/S h tan α/S h (tan α + tan β)/S h tan β/S h (tan α - tan β)/S ANSWER DOWNLOAD EXAMIANS APP
Surveying Circumpolar stars Rotate round the North Pole Are seldom seen near the pole star Remain always above the horizon Rotate round the celestial pole Rotate round the North Pole Are seldom seen near the pole star Remain always above the horizon Rotate round the celestial pole ANSWER DOWNLOAD EXAMIANS APP
Surveying At lower culmination, the pole star moves Eastward Westward Northward Southward Eastward Westward Northward Southward ANSWER DOWNLOAD EXAMIANS APP
Surveying If E is the spherical excess and R the radius of the earth, the surface area of the triangle, is πR²E/90° πR²E/270° πR²E/360° πR²E/180° πR²E/90° πR²E/270° πR²E/360° πR²E/180° ANSWER DOWNLOAD EXAMIANS APP
Surveying Agate cap is fitted with a level prismatic compass cross staff chain level prismatic compass cross staff chain ANSWER DOWNLOAD EXAMIANS APP
Surveying According to Napier's Rules of circular parts for a right angled triangle, sine of middle part equals the product of Sines of two adjacent parts Tangents of two adjacent parts Both (A) and (B) above Cosines of two adjacent parts Sines of two adjacent parts Tangents of two adjacent parts Both (A) and (B) above Cosines of two adjacent parts ANSWER DOWNLOAD EXAMIANS APP
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