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GATE 2017 CE (CE2) – Question 23

Geomatics Engineering · Principles of surveying: plane and geodetic surveying, errors and adjustment · 1 mark · Multiple choice

The orientation method used when a plane table occupies a point not yet located on the map is ______.

  1. traversing
  2. radiation
  3. levelling
  4. resection

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Show answer and explanation

Correct answer: (D) resection

Explanation

Resection determines the occupied station by sighting known points already plotted on the map. It permits orientation and location when the table station itself is initially unknown. Therefore **resection, D**. Radiation starts from a known occupied station and plots surrounding detail.