The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is
A. f/H sec θ
B. f sec θ/H
C. f/H
D. f/H cos ½θ
Answer: Option A
Related Questions on Surveying
Which of the following statements is incorrect ?
A. Error due to refraction may not be completely eliminated by reciprocal levelling.
B. Tilting levels are commonly used for precision work.
C. The last reading of levelling is always a foresight.
D. All of the above statements are incorrect.
The latitude (λ) of a place and the altitude (α) of the pole are related by
A. λ = α
B. λ = 90° - α
C. λ = α - 90°
D. λ = 180° - α
A. only (i)
B. (i) and (ii)
C. (ii) and (iii)
D. (i), (ii) and (iii)
A. Mean sun
B. True sun
C. Vernal equinox
D. All the above
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