Reconnaissance is best done with the help of

condastral surveys

topographical surveys

aerial photographic survey

triangulation surveys

Correct Answer : aerial photographic survey

Recently Updated in Highway Engineering Questions

In welded wire mesh, the longitudinal wire is placed at______.

10 cm centres

15 cm centres

20 cm centres

25 cm centres

Correct Answer : Option (B) : 15 cm centres

Ruling gradient on hill roads 300 m above M.S.L. is kept

Correct Answer : Option (A) : 5%

The length of a transition curve, is governed by

rate of change of super-elevation

rate of change of radial acceleration

Both (A) and (B)

Neither (A) nor (B)

Correct Answer : Option (C) : Both (A) and (B)