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Civil Engineering - Surveying

Exercise : Surveying - Section 6
11.
While surveying a plot of land by plane tabling, the field observations
and plotting proceed simultaneously
and plotting do not proceed simultaneously
and recorded in field books to be plotted later
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
If α and β be the elevations of two objects A and B respectively, θ be the angle observed by a sextant. The correct horizontal angle is
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
If vertical angles of inclined sights do not exceed 10° and non-verticality of the staff remains within 1°, stadia system of tacheometric observations are made on
staff normal
staff vertical
staff normal as well as vertical
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
If the length of a chain line along a slope of θ° is l, the required slope correction is
2l cos2 θ/2
2l sin2 θ/2
l tan2 θ/2
l cos2 θ/2.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly
0.043 m
0.053 m
0.063 m
0.073 m
0.083 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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