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The magnetic bearing of a line in theodolite surveying is the horizontal angle measured clockwise from the magnetic north direction to the line. This bearing is used to orient the theodolite and accurately measure angles during surveying work. It is important to account for magnetic declination when converting magnetic bearings to true bearings.
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What are the aims and objectives of compass survey?
The aims of a compass survey are to determine the magnetic bearing of a line and to set out accurate directions on the field. Its objectives include establishing a reference direction, determining the magnetic declination, and providing a basis for orienting maps and conducting navigation activities.
What is the reason for measuring the bearing of survey lines in a compass traversing at both ends?
Measuring the bearing of survey lines at both ends ensures accuracy and reliability in determining the direction of the survey line. This helps in verifying and adjusting for any errors that may have occurred during the surveying process, ultimately leading to more precise results for mapping and construction purposes.
What is tie line in chain survey?
In chain surveying, a tie line is a straight line connecting two survey stations that helps in checking the accuracy of the survey measurements. It helps to ensure that the survey is properly oriented and that errors can be identified and corrected. Tie lines are important for maintaining the integrity and reliability of the survey data.
What is the control line in a land survey?
The control line in a land survey is a reference line established through surveying techniques to control the positioning and orientation of survey measurements. It is typically a straight line connecting known points on the ground, used as a reference for conducting accurate measurements and creating an accurate map or plan of the surveyed area.
What is an end line survey?
An end line survey is a survey conducted at the conclusion of a project or program to assess its impact, outcomes, and effectiveness. It is used to gather feedback from participants or stakeholders to understand the success of the initiative and identify areas for improvement in the future.
What are the aims and objectives of compass survey?
The aims of a compass survey are to determine the magnetic bearing of a line and to set out accurate directions on the field. Its objectives include establishing a reference direction, determining the magnetic declination, and providing a basis for orienting maps and conducting navigation activities.
How is azimuth projection of survey plans?
Its the whole circle bearing of a line.
What is the methods used in measuring right angle from the line of traverse?
If in the open, a magnetic compass, a theodolite, etc. If on paper, a protractor, a drawing compass, etc.
What is the reason for measuring the bearing of survey lines in a compass traversing at both ends?
Measuring the bearing of survey lines at both ends ensures accuracy and reliability in determining the direction of the survey line. This helps in verifying and adjusting for any errors that may have occurred during the surveying process, ultimately leading to more precise results for mapping and construction purposes.
How to Check vertical deviation of tower using theodolite?
To check vertical deviation of tower using theodolite, measure the distance between the target and the point of burst in the plane. There must be a normal line of position along a line perpendicular to the lateral deviation.
What is collimation error in angular measurement?
Is error comes when the line of sight does not coincide with the optical axis of theodolite.
What is the best description of a magnetic field line?
magnetic field line is an imaginary line showing magnetic energy between a north and south pole .
What is a blue line survey?
A blue line survey is a survey to establish the property boundary. The property line that is drawn as a result of the survey is called the blue line. Another type OS survey that is sometimes done for finacing and many other reasons is an ALTA survey which not only establishes the boundary, but also researches and shows any easements or existing features on the property such as the building and other topographical features.
What is tie line in chain survey?
In chain surveying, a tie line is a straight line connecting two survey stations that helps in checking the accuracy of the survey measurements. It helps to ensure that the survey is properly oriented and that errors can be identified and corrected. Tie lines are important for maintaining the integrity and reliability of the survey data.
What is ordnance survey symbol?
it is a line
What does bearing mean in maths?
the bearing of something is the angle. for example there are 180 degrees on a straight line so the bearing of a straight line is 180 degrees. To work out the bearing of something though you need a protracter
Iron bar can be made magnetic when?
Its magnetic domains line up.
