Introduction to Tunnel Construction

An above ground passage for transportation

A structure built over a water obstacle

An enclosed roadway with vehicle access at multiple points

An underground passage for transportation connection between two points (correct)

To create a scenic route for tourists

To construct underground parking facilities

To build an elevated pathway over the mountain

To avoid bypassing the mountain (correct)

A structure with unrestricted vehicle access

An enclosed roadway with vehicle access at multiple points

A bridge connecting two points underground

An enclosed roadway with vehicle access restricted to portals (correct)

<p>Crossing water bodies</p> Signup and view all the answers

<p>Military defense posts</p> Signup and view all the answers