Consider the following surveys i) Reconnaissance survey ii) Preliminary survey iii) Traffic survey iv) Location survey The correct sequence in which these surveys are conducted before the alignment of a track is finalised is A. i, iii, ii, iv B. i, iii, iv, ii C. iii, i, iv, ii D. iii, i, ii, iv

The correct answer is: D. iii, i, ii, iv

A reconnaissance survey is a preliminary survey of an area to determine the feasibility of a project. It is typically conducted by a team of engineers and geologists who assess the terrain, climate, and other factors that could affect the project.

A preliminary survey is a more detailed survey that is conducted after the reconnaissance survey has been completed. It is used to determine the exact location of the project and to identify any potential problems that may need to be addressed.

A traffic survey is conducted to determine the volume and type of traffic that will use the proposed track. This information is used to design the track and to ensure that it can accommodate the expected traffic.

A location survey is the final survey that is conducted before construction begins. It is used to establish the exact location of the track and to mark the boundaries of the right-of-way.

The correct sequence in which these surveys are conducted is:

1. Reconnaissance survey
2. Preliminary survey
3. Traffic survey
4. Location survey

The reconnaissance survey is conducted first to determine the feasibility of the project. The preliminary survey is conducted next to determine the exact location of the project and to identify any potential problems. The traffic survey is conducted after the preliminary survey to determine the volume and type of traffic that will use the proposed track. The location survey is conducted last to establish the exact location of the track and to mark the boundaries of the right-of-way.