Bolt tensioners are devices designed to apply a specific tension to a bolt. The device may be either removed once the actual nut is threaded into place, or left in place, in the case of a hydraulic nut.
The metric system does away with all of the different units of volume used in the English system, and instead, uses only one unit to measure volume. That unit is called the liter. Materials Needed: Meter stick or metric ruler; stiff cardboard such as poster board; scissors or hobby knife; tape.
Virginia Department of Education Â© 2012 2. 2. As students come up with the names of the tools, show them the instrument and. demonstrate how it is used. If students are unable to come up with the toolsâ names, once students discuss the measurement, show them the tool that helps meteorologists. measure it.