Surveying Contour interval is Larger for accurate works Directly proportional to the flatness of ground Inversely proportional to the scale of the map Larger if the time available is more Larger for accurate works Directly proportional to the flatness of ground Inversely proportional to the scale of the map Larger if the time available is more ANSWER DOWNLOAD EXAMIANS APP
Surveying The following sights are taken on a “turning point” foresight and backsight foresight and intermediate sight foresight only foresight only foresight and backsight foresight and intermediate sight foresight only foresight only ANSWER DOWNLOAD EXAMIANS APP
Surveying The suitable contour interval for a map with scale 1 : 10000 is 2 m 5 m 20 m 10 m 2 m 5 m 20 m 10 m ANSWER DOWNLOAD EXAMIANS APP
Surveying If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer, then the azimuth of the star at elongation is given by cos z = sec φ . cos δ tan z = sec φ . cos δ None of these sin z = sec φ . cos δ cos z = sec φ . cos δ tan z = sec φ . cos δ None of these sin z = sec φ . cos δ ANSWER DOWNLOAD EXAMIANS APP
Surveying The line of collimation method of reduction of levels, does not provide a check on Fore sights Intermediate sights Back sights Reduced levels Fore sights Intermediate sights Back sights Reduced levels ANSWER DOWNLOAD EXAMIANS APP
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 α + tan β)/S h tan β/S h tan α/S h (tan α - tan β)/S h (tan α + tan β)/S h tan β/S ANSWER DOWNLOAD EXAMIANS APP