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Surveying

Surveying
The chord of a curve less than peg interval, is known as

Small chord
Short chord
Sub-chord
Normal chord

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

Δ/6
Δ/2
Δ/4
Δ/3

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Surveying
If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to

d2
d
1/d2
1/d

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Surveying
If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer then the hour angle of the star at elongation is given by

cos H = tan φ . cot δ
tan H = tan φ . cot δ
None of these
sin H = tan φ . cot δ

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Surveying
The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height ‘H’ is 100 m. If mean photo base is 95.2 mm, the flying height is

14,000 m
12,000 m
10,000 m
8,000 m

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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

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

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