A transit is oriented by setting its vernier A to read the back azimuth of the preceding line. A back sight on the preceding transit station taken and transit is rotated about its vertical axis. The vernier A reads

Question:A transit is oriented by setting its vernier A to read the back azimuth of the preceding line. A back sight on the preceding transit station taken and transit is rotated about its vertical axis. The vernier A reads

1.azimuth of the forward line

2.bearing of the. forward line

3.back bearing of the forward line

4.equal to 360°-azimuth of the forward line.


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