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A special attachment fitted externally to a tacheometer which helps in determining horizontal and vertical distance without the use of a stadia table, is,
- a)Beaman stadia arc
- b)Fergussin's Percentage Unit System
- c)Gradienter
- d)Both 1 and 2
Correct answer is option 'A'. Can you explain this answer?
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A special attachment fitted externally to a tacheometer which helps in...
Beaman stadia arc
- This is a special attachment fitted externally to a tacheometer to reduce the observation
- This helps to determine horizontal and vertical distance without the use of a stadia table.
Fergussin's Percentage Unit system
- This is used to reduce observation in a tangential tacheometer.
Gradienter
- Used for setting out the gradient.
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A special attachment fitted externally to a tacheometer which helps in...
Attachment for Determining Horizontal and Vertical Distance
The special attachment that is fitted externally to a tacheometer, which helps in determining horizontal and vertical distance without the use of a stadia table, is the Beaman stadia arc.
Beaman Stadia Arc
The Beaman stadia arc is an attachment that is used in conjunction with a tacheometer or theodolite to measure horizontal and vertical distances. It is particularly useful when stadia tables are not available or when quick distance measurements are required.
Working Principle
The Beaman stadia arc works on the principle of the stadia method, which is based on the fact that the intercept between two stadia hairs in the telescope of the tacheometer is proportional to the distance from the instrument to the target. The Beaman stadia arc consists of a graduated arc that is fixed externally to the tacheometer. It has two auxiliary stadia hairs or marks that are positioned at a known distance apart.
When taking measurements, the observer aligns the target with the main crosshair in the telescope and reads the two intercepts made by the stadia hairs on the graduated arc. These intercepts are then used to determine the horizontal and vertical distances.
Advantages
The Beaman stadia arc offers several advantages in distance measurement:
1. No Stadia Table Required: Unlike traditional stadia methods that rely on a stadia table, the Beaman stadia arc eliminates the need for a table, making it more convenient and efficient.
2. Quick Measurements: The Beaman stadia arc allows for rapid distance measurement, as the observer can directly read the intercepts on the graduated arc.
3. Versatility: This attachment can be used with both tacheometers and theodolites, making it suitable for various surveying applications.
4. Accuracy: With proper alignment and reading techniques, the Beaman stadia arc can provide accurate distance measurements.
In conclusion, the Beaman stadia arc is a special attachment that can be fitted externally to a tacheometer or theodolite. It allows for the determination of horizontal and vertical distances without the need for a stadia table. Its simplicity, convenience, and quick measurement capabilities make it a valuable tool in surveying and engineering applications.
The special attachment that is fitted externally to a tacheometer, which helps in determining horizontal and vertical distance without the use of a stadia table, is the Beaman stadia arc.
Beaman Stadia Arc
The Beaman stadia arc is an attachment that is used in conjunction with a tacheometer or theodolite to measure horizontal and vertical distances. It is particularly useful when stadia tables are not available or when quick distance measurements are required.
Working Principle
The Beaman stadia arc works on the principle of the stadia method, which is based on the fact that the intercept between two stadia hairs in the telescope of the tacheometer is proportional to the distance from the instrument to the target. The Beaman stadia arc consists of a graduated arc that is fixed externally to the tacheometer. It has two auxiliary stadia hairs or marks that are positioned at a known distance apart.
When taking measurements, the observer aligns the target with the main crosshair in the telescope and reads the two intercepts made by the stadia hairs on the graduated arc. These intercepts are then used to determine the horizontal and vertical distances.
Advantages
The Beaman stadia arc offers several advantages in distance measurement:
1. No Stadia Table Required: Unlike traditional stadia methods that rely on a stadia table, the Beaman stadia arc eliminates the need for a table, making it more convenient and efficient.
2. Quick Measurements: The Beaman stadia arc allows for rapid distance measurement, as the observer can directly read the intercepts on the graduated arc.
3. Versatility: This attachment can be used with both tacheometers and theodolites, making it suitable for various surveying applications.
4. Accuracy: With proper alignment and reading techniques, the Beaman stadia arc can provide accurate distance measurements.
In conclusion, the Beaman stadia arc is a special attachment that can be fitted externally to a tacheometer or theodolite. It allows for the determination of horizontal and vertical distances without the need for a stadia table. Its simplicity, convenience, and quick measurement capabilities make it a valuable tool in surveying and engineering applications.
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A special attachment fitted externally to a tacheometer which helps in determining horizontal and vertical distance without the use of a stadia table, is,a)Beaman stadia arcb)Fergussins Percentage Unit Systemc)Gradienterd)Both 1 and 2Correct answer is option 'A'. Can you explain this answer?
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