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The prismatic compass is a type of compass use for survering a land.
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∙ 12y ago
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Why we need surveying?
Surveying is the back bone of construction projects, we must need surveying before starting a construction project, during execution of construction activities and after completion of project. Before starting project surveying help us in design and calculation of quantities. During execution of construction activities surveying is most important thing, It help us to maintain the exact locations and heights. After completion of project surveying is called topographic surveying and it helps us to prepare the As-Built drawings, to make comparison between design and actual constructed structures, to check the differences.
What is Plain table surveying?
it is a type of surveying in which we can plot the area in the field rapidly.we can also find our error in the field and solve it.
What is chain surveying as used in civil engineering?
chain surveying is one of the types of survey methods. It is used to survey short length lands
What does the abbreviation HI mean in surveying?
Height of Instrument
What are the types of coordinates used in surveying?
Easting and Northing mostly
Different types of compass in the field of surveying?
prismatic surveying and surveying compass.
What are the aims and objectives of compass survey?
objective of compass surveying
What has the author Rufus James Foster written?
Rufus James Foster has written: 'Compass surveying' -- subject(s): Surveying, Surveyor's compass
What are the advantages and disadvantages of gyro compass?
The disadvantages of using a compass for surveying is that readings are often inaccurate (accuracy dependent on size and graduations of compass, it is easily disturbed by effects of local magnetic attraction
How do you use a surveyors compass?
A surveyor's compass, or a circumferentor is a device used in surveying to measure horizontal angles. It is used by directing the line of sight.
How do you conduct compass surveying?
To conduct compass surveying, stand at a known point and sight the compass toward the new point whose direction you want to measure. Record the bearing shown on the compass. Repeat this process at multiple known points to triangulate the position of the new point. Calculate the coordinates of the new point based on the triangulated bearings and distances.
What is local attraction on compass survey?
The local attraction are the error affecting device available at near by the compass while doing surveying. the local attraction is the effect of the magnetic materials on the compass and gets the incorrect bearing.
What would a compass be used for?
Drawing accurate circles and part circles in surveying, mathematics and geometry in schools and at work where planning is involved.
How do you eliminate local attraction?
The local attraction are the error affecting device available at near by the compass while doing surveying. the local attraction is the effect of the magnetic materials on the compass and gets the incorrect bearing.
What is the principle of chain surveying?
Type your answer here... It is the method of land surveying in which only linear measurements are made. Chain surveying requires chain, tape and ranging rods. Chain surveying is not suitable for large areas having many details. (The term "details" means a natural or man-made features at or near the ground surface)
What are the advantages and disadvantages of compass survey?
advantage it helps u know the direction of your measurement in relation to magnetic bearing disadvantage it is affected by the weather
Who invented the compass used in Geometry?
The first proportional compasses were invented in the mid sixteenth century. Galileo invented a geometric and military compass in Padua in 1597. With his compass it was possible to make all sorts of arithmetical and geometrical calculations, from calculating interest to square and cube roots to drawing polygons and surveying.
