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Direct Measurement: Apply the instrument directly to the unknown quantity. E.g. Taped distance, direction measured with a theodolite
Indirect Measurement: Determined from its relationship to direct measurements. E.g. height difference determination in trigonometric leveling
Direct measurement involves physically measuring the distance or angles on the ground using tools like a tape measure or theodolite. Indirect measurement, on the other hand, relies on calculations and observations from remote sources, such as GPS satellites or aerial photographs, to determine distances or angles.
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What is the difference between thedolite and total station?
A theodolite is a surveying instrument used to measure horizontal and vertical angles. It requires a separate instrument to measure distances. A total station is a surveying instrument that combines the functions of a theodolite and distance measuring device, allowing for simultaneous measurement of angles and distances.
What is inverse leveling in surveying?
Inverse leveling is a method in surveying where the difference in elevation between two points is calculated by taking reciprocal leveling observations. This technique helps to determine the height difference between points that cannot be directly measured due to obstacles or long distances. By using the principle of reciprocal leveling, the accuracy of leveling measurements can be improved.
What is the fundamental difference between surveying and leveling?
Surveying involves measuring and mapping the three-dimensional positions of points on the Earth's surface, while leveling focuses on determining and establishing the elevation differences between points. Surveying is more comprehensive and involves determining both horizontal and vertical positions, whereas leveling is primarily concerned with vertical positioning along a level line or plane.
What is the diffrence between thedolite and total station?
A theodolite is a surveying instrument used for measuring horizontal and vertical angles, typically with a rotating telescope. A total station combines the functionality of a theodolite with an electronic distance measurement (EDM) device to measure angles and distances simultaneously. Total stations are more advanced and versatile than theodolites.
What is the difference between direct and indirect survey?
Direct surveys involve direct interaction with participants, such as face-to-face interviews or phone surveys. Indirect surveys use indirect methods, like questionnaires distributed via email or social media. Direct surveys typically have higher response rates and provide more in-depth qualitative data, while indirect surveys are often more cost-effective and reach a larger audience.
Difference between direct and indirect measurement in electrical measurements?
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What is the difference between direct and indirect measurement?
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What is the difference between thedolite and total station?
A theodolite is a surveying instrument used to measure horizontal and vertical angles. It requires a separate instrument to measure distances. A total station is a surveying instrument that combines the functions of a theodolite and distance measuring device, allowing for simultaneous measurement of angles and distances.
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What is the difference between direct and indirect correlation in statistics?
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The difference between direct and indirect supervisor is the presence of the supervisor. Direct supervision means a supervisor is psychically present. Indirect supervision means doing work without the physical presence of the supervisor.
What is the zero value in quantity surveying?
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