Surveying
In triangulation surveys

Sides are not measured excepting the base line
Control stations are located from which detailed surveys are carried out
The area is divided into triangular figures
All listed here

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Surveying
Pick up the incorrect statement from the following. In a spherical triangle

Every angle is less than two right angles
Sum of the three angles less than six right angles and greater than two right angles
Sum of the three angles is equal to two right angles
Sum of any two sides is greater than the third

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Surveying
Pick up the correct statement for horizontal photographs.

The lines parallel to the negative plane are projected as parallel lines
All listed here
Parallel lines do not appear parallel in central projection
The two sides of a road meet at the vanishing point

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Surveying
Contour interval is

Larger for accurate works
Larger if the time available is more
Inversely proportional to the scale of the map
Directly proportional to the flatness of ground

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