WHY MACHINERY BRIDGE DESIGNER, OF COURSE.
The title 'mechanic' covers a wide range of fields. A person in employment with this title would repair and maintain machinery. A few specific examples of mechanical employment include: car mechanics, boiler mechanics, or aircraft mechanics.
Many bridges are NOT supported by a roller - however of those that NEED this type of design, if both ends were fixed solid - then as the bridge expanded and contracted with temperature, it would be forced to buckle in heat - or suffer extreme stresses when cooling - possibly to the point of structural failure and/or uprooting of the foundations of one or both sides.
People would probably use boats...
would help a lot of people
Learn about industrial machinery at a local business where hands on training may be the best for you. In addition, a local bookstore would offer a place to look up machinery.
I would say no. In rural area roads and bridges are the responsibility of the county.
There are certain bridges that raise and lower to allow tall ships to pass, but in general, bridges stand up because of the structure holding them up.
The major import would be machinery
He is an architect. Actually anyone can design a floorplan but to have it approved for construction or ie published it would have to be reviewed and approved by an architect.
The average cost for machinery training would be about five hundred dollars. It varies depending on the specific machine.
A good program to take for machinery training would be the PMMI certification. It's a great thing to have.
Both bridges and tunnels are man-made to provide a way to get to a point that would otherwise be difficult or impossible to get to.