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Surveying

Surveying
The correction for parallax, is

- 8".8 cos α
+ 8".8 cos α
- 8".8 cos α
+ .8" sin α

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Surveying
The moon rotates round the earth once in every

29.35 days
29 days
30 days
29.53 days

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Surveying
With the rise of temperature, the sensitivity of a bubble tube

decreases
None of these
increases
remains unaffected

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Surveying
In a spherical triangle ABC, right angled at C, sin b equals

cos a sin A
tan a cot A
sin a cos A
cot A tan a

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Surveying
If in a closed traverse, the sum of the north latitudes is more than the sum of the south latitudes and also the sum of west departures is more than the sum of the east departures, the bearing of the closing line is in the

NW quadrant
NE quadrant
SW quadrant
SE quadrant

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Surveying
If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is

60°
35°
45°
30°

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