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What is a backsight?
A backsight is the rear sight of a firearm.
How do you calcuate height of instrument in surveying?
When surveying using a "level" instrument , the "level" instrument is set-up and adjusted to level by adjusting the screws. When surveying you have an instrument person and a rod person. When trying to find the height of the instrument, the rod person places there rod over a "known" elevation, either a benchmark or a temporary benchmark that has a known elevation. To get the height of the instrument, you need to "shoot" the level to the rod person holding the rod on the known elevation, this is called the "Backsight". This elevation will be read by the instrument person, and recorded in the survey field book. This value backsight elevation will then be added to the known elevation of the benchmark or the temporary benchmark, to get the height of instrument. HI = known elevation + BS Height
What is chainage in linear surveying terms?
method of linear measurement
What is an intermediate sight in surveying?
On a typical boundary survey the instrument is sighted on a point from which angles will be measured, the backsight, and the next survey point where the instrument will be set up to continue the survey around the property, the foresight. Intermediate foresights, often "called sideshots," are points to which measurements are made other than the foresight or backsight. For example, a survey instrument is set up over a point. The horizontal angle on the instrument is set on 0 while sighting on a backsight point that may be a couple hundred feet away. A measurement will be taken to the foresight point which may also be a couple hundred feet away. There may be a survey marker near the point where the instrument is set up to which a measurement needs to be made. This measurement is called an intermediate foresight or a sideshot.
Types of surveying in civil engineering?
Plain Surveying Geodetical Surveying
What are the classes of surveying?
The main classes of surveying are geodetic surveying, topographic surveying, cadastral surveying, construction surveying, and hydrographic surveying. Geodetic surveying deals with large areas and high accuracy measurements for mapping the Earth's surface. Topographic surveying focuses on determining the natural and man-made features of a specific area. Cadastral surveying involves demarcating property boundaries. Construction surveying is done to guide the construction of infrastructure and buildings, while hydrographic surveying is used to map underwater features.
Different types of compass in the field of surveying?
prismatic surveying and surveying compass.
What are general classifications of surveying?
General classifications of surveying include geodetic surveying, plane surveying, topographic surveying, cadastral surveying, construction surveying, and hydrographic surveying. Geodetic surveying deals with large-scale measurements of the earth's surface, while plane surveying focuses on small-scale measurements on a flat surface. Topographic surveying involves mapping of the land's natural features, cadastral surveying deals with land parcel boundaries, construction surveying is used for building projects, and hydrographic surveying is for mapping bodies of water and their features.
What has the author Philip Kissam written?
Philip Kissam has written: 'Surveying for civil engineers' -- subject(s): Surveying 'Surveying practice' -- subject(s): Surveying
What are the classification of surveying?
Surveying can be classified into two main categories: plane surveying and geodetic surveying. Plane surveying deals with small areas on the Earth's surface where the curvature of the Earth can be neglected. Geodetic surveying involves measuring large areas and taking into account the curvature of the Earth.
What is the difference between land surveying and geomatics?
geomatics differ with surveying in that it encompasses a broad range of disciplines than surveying,let alone surveying is a discipline under geomatics
What is the average size of a township?
6 to 54 square miles ==More specifically...== A township in surveying terms is 36 sections, or 36 square miles.
