Surveying If ‘f’ is the focal length of the camera lens and ‘θ’ is the angle of tilt, the distance of the plumb point from the principal point will be f sec θ f tan θ f sin θ f cos θ f sec θ f tan θ f sin θ f cos θ ANSWER DOWNLOAD EXAMIANS APP
Surveying On vertical photographs, height displacement is Positive for points above datum All listed here Zero for points vertically below the air station Negative for points below datum Positive for points above datum All listed here Zero for points vertically below the air station Negative for points below datum ANSWER DOWNLOAD EXAMIANS APP
Surveying The graduations in prismatic compassi) are invertedii) are uprightiii) run clockwise having 0° at southiv) run clockwise having 0° at northThe correct answer is (ii) and (iv) (ii) and (iii) (i) and (iv) (i) and (iii) (ii) and (iv) (ii) and (iii) (i) and (iv) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following errors can be neutralised by setting the level midway between the two stations ? error due to refraction only error due to both curvature and re-fraction None of these error due to curvature only error due to refraction only error due to both curvature and re-fraction None of these error due to curvature only ANSWER DOWNLOAD EXAMIANS APP
Surveying The parallax equation Δp = BmΔh/H - h is applicable to entire overlap of the photographs only if parallax is measured Neither (A) nor (B) Normal to base line Both (A) and (B) Parallel to base line Neither (A) nor (B) Normal to base line Both (A) and (B) Parallel to base line ANSWER DOWNLOAD EXAMIANS APP
Surveying Height of instrument method of levelling is more accurate than rise and fall method less accurate than rise and fall method None of these quicker and less tedious for large number of intermediate sights more accurate than rise and fall method less accurate than rise and fall method None of these quicker and less tedious for large number of intermediate sights ANSWER DOWNLOAD EXAMIANS APP
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