Question:medium

Which points should be kept in mind while selecting the stations?
(A) The survey lines should be as few as possible.
(B) If possible, a base line should be run roughly through the middle of the area on which the framework of triangles covering the major portions of area may be built up.
(C) Offsets should be long particularly for locating the important features.
(D) All the triangles should be well conditioned.
(E) The main principle of surveying is to work from the part to the whole.
Choose the correct answer from the options given below:

Show Hint

Remember: work from the whole to the part, and keep offsets short.
  • (A), (B) and (C) only.
  • (B), (C) and (D) only.
  • (A), (B) and (D) only.
  • (C), (D) and (E) only.
Show Solution

The Correct Option is C

Solution and Explanation

Instead of checking every statement, focus only on the two well known traps in this list.
The phrase in statement (E) reverses the golden rule of surveying. The actual rule is to work from the whole to the part, laying out a rough control framework first and then filling in detail, so small errors do not build up over the whole area. Because the statement flips this order, (E) is false.
Statement (C) says offsets should be long, but the entire purpose of taking offsets is to fix minor detail close to the survey line with minimum error, so short offsets are preferred, making (C) false too.
Once (C) and (E) are removed, the statements left standing are (A), few survey lines, (B), a central base line, and (D), well conditioned triangles, all of which describe genuine good practice in station selection.
\[ oxed{(A),\ (B),\ (D)\ ext{only}} \]
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