Section 4: Soil and Water Conservation Engineering
Surveying and Levelling
Subtopic: Plane table surveying
Question Statement:
In plane table surveying, 'resection' is primarily employed to:
Options:
(A) Determine the location of the instrument station on the paper using known plotted ground stations
(B) Measure horizontal distances directly with an EDM
(C) Calculate contour interval
(D) Determine the magnetic declination of the meridian
Answer Key:
A
Step-by-Step Solution & Explanation
Resection is the method of orienting the plane table and plotting the unknown position of the instrument station by drawing rays from two or three visible known plotted stations (Two-Point and Three-Point problems).