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Q: When the chain surveying is not usually adopted?
  • A. When the surveying area is large
  • B. When the plot for surveying has numerous obstacles and undulations
  • C. When there is a time limit for surveying
  • D. All of these
Correct Answer: Option D - Chain surveying is used if the area meet following conditions:– • The area shall be fairly small. • The ground is fairly levelled, less undulating and obstacles and open with simple details. • The area needs to be open.
D. Chain surveying is used if the area meet following conditions:– • The area shall be fairly small. • The ground is fairly levelled, less undulating and obstacles and open with simple details. • The area needs to be open.

Explanations:

Chain surveying is used if the area meet following conditions:– • The area shall be fairly small. • The ground is fairly levelled, less undulating and obstacles and open with simple details. • The area needs to be open.