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Surveying

Surveying
A lemniscate curve between the tangents will be transitional throughout if the polar deflection angle of its apex, is

Δ/6
Δ/4
Δ/3
Δ/2

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Surveying
The sun's declination remains north between

September 21 to December 21
June 21 to September 21
March 21 to June 21
Both (A) and (B) of above

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Surveying
The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is

f/H cos ½θ
f/H
f sec θ/H
f/H sec θ

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Surveying
The Polaris describes a small circle round the pole whose radius is approximately

4°
2°
1°
3°

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Surveying
The following sights are taken on a “turning point”

foresight and backsight
foresight only
foresight and intermediate sight
foresight only

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Surveying
In the cross-section method of indirect contouring, the spacing of cross-sections depends uponi) contour intervalii) scale of planiii) characteristics of groundThe correct answer is

only (i)
(i) and (ii)
(i), (ii) and (iii)
(ii) and (iii)

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