Civil Engineering - Surveying
Exercise :: Surveying - Section 2
| 26. |
The operation of making the algebraic sum of latitudes and departures of a closed traverse, each equal to zero, is known |
| A. |
balancing the sights | | B. |
balancing the departures | | C. |
balancing the latitudes | | D. |
balancing the traverse. |
Answer: Option D
Explanation:
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| 27. |
If the sight distance (S) is equal to the length of the vertical-curve (2l) joining two grades g1% and - g2%, the height of the apex will be |
Answer: Option B
Explanation:
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| 28. |
Orientation of a plane table by solving two point problem is only adopted when |
| A. |
saving of time is a main factor | | B. |
better accuracy is a main factor | | C. |
given points are inaccessible | | D. |
none of these. |
Answer: Option C
Explanation:
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| 29. |
A back sight |
| A. |
is always taken on a point of known elevation or can be computed | | B. |
is added to the known level to obtain the instrument height | | C. |
taken on an inverted staff is treated as negative | | D. |
all the above. |
Answer: Option D
Explanation:
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| 30. |
If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is |
Answer: Option D
Explanation:
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