A stadia reading is recorded to have an upper cross hair reading of 1.655 m and a lower cross hair reading of 1.510 m. The zenith angle is 82º 45’ 10” and the height of instrument is recorded as 1.450 m. Calculate the horizontal distance between the instrument and the staff position and the RL of the ground surface at the staff position, if the RL at the instrument location is 50.345 m at ground level.

Q: The upper and lower stadia hair readings on a stadia rod held at station B were observed as 3.50 and…

A: Given:- The upper and lower stadia hair readings on a stadia rod held at station B = 3.50 m and 1.00…

Q: Which of the following may cause errors in leveling measurement? (Multiple choice) (Multiple choice)…

A: There are many errors in levelling measurement :- From the the given option.

Q: A 12 m Zoom image 110.7 332.7 20 kN/m В П -12 m 250 к Пс 4 m

A:

State Plane Coordinate Systems

The state plane coordinate system (SPCS or SPS) is a collection of 124 coordinate systems or geographic zones prepared for particular regions of the U.S. Every state consists of one or more than one state plane zone, the boundaries of which generally follow the county lines. Inside the U.S., there are 110 zones in total, 10 more zones in Alaska, 5 in Hawaii, and 1 for Puerto Rico and US Virgin islands. The system is extensively used for geospatial and geographic data assembling by the state and local governments.