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 β/S h tan α/S h (tan α + tan β)/S h (tan α - tan β)/S h tan β/S h tan α/S h (tan α + tan β)/S h (tan α - tan β)/S ANSWER DOWNLOAD EXAMIANS APP
Surveying Local attraction in compass surveying may exist due to loss of magnetism of the needle incorrect levelling of the magnetic needle presence of magnetic substances near the instrument friction of the needle at the pivot loss of magnetism of the needle incorrect levelling of the magnetic needle presence of magnetic substances near the instrument friction of the needle at the pivot ANSWER DOWNLOAD EXAMIANS APP
Surveying A series of closely spaced contour lines represents a steep slope gentle slope plane surface uniform slope steep slope gentle slope plane surface uniform slope ANSWER DOWNLOAD EXAMIANS APP
Surveying Bowditch rule is applied to None of these determine the effect of local attraction an open traverse for graphical adjustment a closed traverse for adjustment of closing error None of these determine the effect of local attraction an open traverse for graphical adjustment a closed traverse for adjustment of closing error ANSWER DOWNLOAD EXAMIANS APP
Surveying The station where observations are not made, but the angles at the station are used in triangulation series, is known as Main station Subsidiary station Pivot station Satellite station Main station Subsidiary station Pivot station Satellite station ANSWER DOWNLOAD EXAMIANS APP
Surveying If the distance between the projectors is altered by a movement along X-axis of one projector, The length of the air base is increased The scale of the model is altered y-parallax is not affected All listed here The length of the air base is increased The scale of the model is altered y-parallax is not affected All listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS