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The dumpy level is a basic optical level instrument used in surveying and construction to find elevations. It can be replaced by automatic levels or laser levels. Surveying is used to find the height of buildings and topography. The main body of a dumpy level is a rotating telescope with bubble levels and three leveling screws. It requires at least two people to operate and can be mounted on tripods. A tilting level allows for greater accuracy.
The dumpy level is one of the most basic types of optical level instruments. It is used in surveying and construction to find elevations, known as levels. It can be used to set, measure or transfer horizontal levels. Some surveyors have replaced this older style of tool with automatic levels, laser levels, or other high-tech optical grade tools. A common variation of the dumpy level is the slope level, which allows for less operator error.
Surveying is used to find the height of buildings and the topography of the land. This information can be used to create maps, establish boundaries and gather information for builders. Measurement usually starts from a reference point, the height of which is known from a previous survey. The surveyor can also use an arbitrary point and estimate its height.
The main body of a dodgy level is a telescope that rotates to take 360-degree measurements. The power of magnification can vary from 20 to 30 times. Many have bubble levels, the same type found in straight edges of simple construction, built into the base so the operator can clearly see if the fixture is level. When the bubble stays exactly in the center, no matter how the telescope is rotated, the device is level.
Three leveling screws positioned on a footplate allow you to minutely adjust the dumpy level. Each quadrant of the level must be set to ensure an accurate reading regardless of which direction the telescope is pointed. These levels are mounted on tripods to hold them at eye level and keep them stable while measuring.
Finding elevations using a squat level requires at least two people, an operator and an assistant. The assistant holds a tape measure or marked rod, called a leveling rod, vertical to the point being measured. Meanwhile, the surveyor looks through the eyepiece at the target and leveling rod. The operator takes measurements by comparing the marks on the leveling rod to the landscape. Several measurements of the same area can be used to find elevation, distance, and other landscape qualities.
A tilting level is a type of seedy level that allows for greater accuracy. Instead of being welded to level, the telescope is hinged. This allows you to rotate the eyepiece 180 degrees without adjusting the head. Since the layer has to be moved less, errors are less likely to occur.
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