The method of measuring distance by pacing is chiefly used in
- Areconnaissance surveysCorrect
- Bpreliminary surveys
- Clocation surveys
- Dall of the above
Solution
Concept
Use of pacing in reconnaissance surveying
Formula
NONE
Step-by-step solution
1. Pacing is a quick distance measurement technique involving counting regular walking steps. 2. It provides approximate distance values without requiring precise surveying instruments. 3. Consequently, pacing is mainly used in reconnaissance surveys to gather rapid preliminary field data. Answer: A
Explanation
Pacing involves estimating distances by counting the number of steps taken over a path of travel. Because step lengths vary, this technique provides rapid but only approximate measurements suitable for initial field reconnaissance. Precise planning and detailed layout stages require more accurate tools like tapes or electronic measuring devices.
Why the other options are wrong
B) Preliminary surveys require higher precision measurement tools rather than approximate pacing. C) Location surveys demand precise setting-out instruments to fix alignment details. D) Pacing is an approximate method suitable mainly for reconnaissance surveys.
Shortcut
Pacing is a quick, rough distance measurement used in Reconnaissance surveys.
Common mistake
Selecting "all of the above" or assuming pacing provides sufficient accuracy for preliminary or location surveys.
Correct answer: A) reconnaissance surveys