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Surveying

Surveying
Agate cap is fitted with a

prismatic compass
chain
level
cross staff

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Surveying
For a well-conditioned triangle, no angle should be less than

60°
30°
45°
20°

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Surveying
The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above

Horizon
None of these
Pole
Equator

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Surveying
If α, H, A and δ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude λ, the following relation holds good

All listed here
cos H = tan λ/tan δ
sin A = cos δ/cos λ
sin α = sin λ/sin δ

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Surveying
After fixing the plane table to the tripod, the main operations which are needed at each plane table station are (i) Levelling (ii) Orientation (iii) CenteringThe correct sequence of these operations is

(ii), (iii), (i)
(i), (ii), (iii)
(iii), (i), (ii)
(i), (iii), (ii)

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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 cos θ
f tan θ
f sec θ
f sin θ

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MORE MCQ ON Surveying

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