Q:

How do surveyors use a transit?

A:

Quick Answer

Surveyors use the transit to sight a location and read the angle of the point on a scale on the instrument. Early models of the transit measured horizontal angles only, but later models included a vertically adjustable telescope and scale for measuring vertical angles. The surveyor's transit combines the function of a compass with a telescope to provide greater accuracy in measuring angles than possible using a compass alone.

 Know More
How do surveyors use a transit?
Credit:Reza EstakhrianThe Image BankGetty Images

Full Answer

The telescope on the transit is reversible, allowing the surveyor to sight angles forward and backward along the traversed path. While originally less accurate than the English theodolite, the transit is more rugged, making it an ideal instrument for use in surveying the American frontier, according to the Smithsonian National Museum of American History.

For a century, surveyors depended on the transit for measuring angles. While electronic equipment eventually provided an easier to use instrument, it did not improve the accuracy of the transit, some of which measured to 0.5 seconds of an arc.

The transit played an important role in many transportation projects in the United States. Its use included laying out railroads, building the major roadways across the United States -including the interstate highway system - and the construction of the space shuttle.

Learn more about Career Aspirations

Related Questions

  • Q:

    How do you start a barbershop?

    A:

    To start a barbershop, determine what services to offer, obtain a business license and permit, write a business plan, find a location for your barber shop, review the lease agreement, prepare your shop, and hire employees. Lastly, advertise your business.

    Full Answer >
    Filed Under:
  • Q:

    What is a bureau chief?

    A:

    A bureau chief is a journalist who works in satellite locations for a newspaper and is typically the newsroom manager for the location. The bureau chief is typically responsible for handing out assignments to reporters and serving in an administrative role.

    Full Answer >
    Filed Under:
  • Q:

    What is a polling clerk?

    A:

    Polling clerks are trained staff members who work at each polling location on Election Day. Polling clerks assist voters with ballots and voting machines, providing information and assistance using the voting technology. Polling clerks are supervised by an election official at each polling site, usually by an election inspector.

    Full Answer >
    Filed Under:
  • Q:

    What is the common end point of the sides of an angle?

    A:

    The common endpoint of the sides of an angle is called a vertex. For example, triangles have three vertices, while squares have four. These common endpoints are often colloquially called corner points, though this may result in confusing them with angles.

    Full Answer >
    Filed Under:

Explore