Question
Download Solution PDFTellurometer, a long-range EDM, uses _________ for distance measurement.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Clinometer:
- It is an instrument for measuring angles of slope, elevation or depression of an object with respect to the ground.
- While the spirit level is restricted to relatively small angles, clinometers can be used for much larger angles.
- Clinometers are used to determine the straightness and flatness of surfaces.
Tellurometer:
- It is an EDM that uses high-frequency radio waves (microwaves) for measuring distance.
Pantagraph:
- It is used for enlarging, reducing, or reproducing the plans. Its working is based on the principle of similar triangles.
Planimeter:
- It is used for measurement of the area of cross-sections for the highways and railways, and for checking computed areas in property surveys and property divisions.
- The area determined with a planimeter is more accurate when the area is larger and particularly when the plotting scale is large.
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