In recent times a laser type pointer has been an option as a

In recent times a laser type pointer has been an option as a replacement of

a) EDM

b) optical plummet

c) prism

d) alidade bubble

Solution

Option (A)

In recent times a laser type pointer has been an option as a replacement of EDM

In total station laser pointer mode used to superpose the reticle crossing with center of the mark.Incase total station does not have the laser point mode then we can use EDM tracking mode.Ideally laser spot is to enter exactly center the mark