Surveying If the image of a triangulation station of R.L. 500 m is 4 cm from the principal point of a vertical photo taken from an altitude of 2000 m, above datum, the height displacement will be 2 mm 10 mm 4 mm 6 mm 2 mm 10 mm 4 mm 6 mm ANSWER DOWNLOAD EXAMIANS APP
Surveying 23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents 1 m 3 m 4 m 2 m 1 m 3 m 4 m 2 m ANSWER DOWNLOAD EXAMIANS APP
Surveying The negative sign is assigned to Reduction to mean sea level All listed here Correction for horizontal alignment Correction for slope Reduction to mean sea level All listed here Correction for horizontal alignment Correction for slope ANSWER DOWNLOAD EXAMIANS APP
Surveying The difference between a level line and a horizontal line is that level line is a curved line while hori-zontal line is a straight line horizontal line is normal to plumb line while level line may not be normal to the plumb line level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line both are same level line is a curved line while hori-zontal line is a straight line horizontal line is normal to plumb line while level line may not be normal to the plumb line level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line both are same ANSWER DOWNLOAD EXAMIANS APP
Surveying An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as contour interval contour gradient horizontal equivalent contour line contour interval contour gradient horizontal equivalent contour line ANSWER DOWNLOAD EXAMIANS APP
Surveying Local attraction in compass surveying may exist due to presence of magnetic substances near the instrument loss of magnetism of the needle incorrect levelling of the magnetic needle friction of the needle at the pivot presence of magnetic substances near the instrument loss of magnetism of the needle incorrect levelling of the magnetic needle friction of the needle at the pivot ANSWER DOWNLOAD EXAMIANS APP
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