Surveying - Engineering

Q1:

For indirect ranging, number of ranging rods required, is

A 1

B 2

C 3

D 4

E 5

ANS:D - 4

One of the three ranging rods is not seen from the other ranging sides so they have to keep one extra ranging rod for there. So. 4 is correct in this way. 4 is the correct answer. Due to rising ground or hill between the two stations we opt for indirect ranging.