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Theodolite can be used to____
Horizontal angle
To locate point of intersection
To prolong straight line
All of the above
All of the above
A theodolite is a precise optical surveying instrument used for measuring horizontal and vertical angles. It is a versatile tool in civil engineering, capable of performing various tasks including triangulation, traversing, setting out curves, and establishing straight lines.
A theodolite is a precise optical surveying instrument used for measuring horizontal and vertical angles. It is a versatile tool in civil engineering, capable of performing various tasks including triangulation, traversing, setting out curves, and establishing straight lines.
H=Dtan(╬▒) тАФ calculation of height (V) using horizontal distance (D) and vertical angle (╬▒)
The theodolite works on the principle of optical sighting through a telescope mounted on a graduated horizontal and vertical plate. The horizontal angle is measured by reading the circular scale on the horizontal plate, while vertical angles are measured using the vertical circle. By locking the plates at specific angles, it can be used to set out lines and locate intersection points through intersection of lines of sight.
Used for measuring horizontal angles with high precision.
Used for measuring vertical angles to determine elevation differences.
Essential for triangulation and traversing surveys.
Capable of extending lines through 'transiting' (plunging the telescope).
High precision compared to simple compass or clinometers
Versatility in multiple surveying applications
Requires high level of skill to operate
Sensitive to atmospheric conditions and requires regular calibration
Control surveying
Highway and Railway alignment
Construction layout
Theodolites can be optical, digital, or electronic (total stations).
Option A, B, and C are all fundamental procedures performed using a theodolite.
D is correct тАФ Theodolites are multi-functional precision surveying instruments capable of angle measurement, line prolongation, and point location.
Always remember that the 'All of the above' option in surveying instruments is common because most devices (like theodolites and total stations) are designed for modular, multi-purpose field operations.
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