A theodolite is set up at station A. The RL of instrument axis is 212,250 m. The angle of elevation to the top of a 4 m long staff, held vertical at station B, is 7°. The horizontal distance between stations A and B is 400 m. Neglecting the errors due to curvature of earth and refraction, the RL (in m (round off to three decimal places) of station B is
A theodolite is set up at station A. The RL of instrument axis is 212,250 m. The angle of elevation to the top of a 4 m long staff, held vertical at station B, is 7°. The horizontal distance between stations A and B is 400 m. Neglecting the errors due to curvature of earth and refraction, the RL (in m (round off to three decimal places) of station B is
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![A theodolite is set up at station A.
The RL of instrument axis is 212,250
m. The angle of elevation to the top
of a 4 m long staff, held vertical at
station B, is 7°. The horizontal distance
between stations A and B is 400 m.
Neglecting the errors due to curvature
of earth and refraction, the RL (in m
(round off to three decimal places) of
station B is](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6de70483-d8c1-4891-b5de-e0008f3f2086%2F57a6809d-5ca4-45c4-8a62-291a32ac7877%2Fhtvnc0m_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A theodolite is set up at station A.
The RL of instrument axis is 212,250
m. The angle of elevation to the top
of a 4 m long staff, held vertical at
station B, is 7°. The horizontal distance
between stations A and B is 400 m.
Neglecting the errors due to curvature
of earth and refraction, the RL (in m
(round off to three decimal places) of
station B is
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