GATE CE 2024 Set 1 — Question 26
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Geomatics Engineering → Distance & Angle Measurement → Angular Measurement
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Question
A surveyor observes a zenith angle of during a theodolite survey. The corresponding vertical angle is
Correct answer
(A) - 03⁰⁰' 00''
Solution
The vertical angle () is the angle measured from the horizontal plane. The zenith angle () is the angle measured from the vertical upward direction (zenith).The relationship between the vertical angle and the zenith angle is:Given:
Zenith angle, Calculation:A negative sign indicates an angle of depression. Thus, the corresponding vertical angle is .
Zenith angle, Calculation:A negative sign indicates an angle of depression. Thus, the corresponding vertical angle is .
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