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Explain difference between prismatic and eurreyors compass?
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Explain difference between prismatic and eurreyors compass?
Prismatic Compass

  • Prismatic compass is a surveying instrument used to measure the direction of a survey line.

  • The compass is equipped with a prism that helps in reading the angle of the survey line.

  • The prism reflects the image of the compass card, making it easier to read the angle.

  • Prismatic compass is suitable for small surveys where high accuracy is not required.

  • The instrument is compact and easy to handle, making it ideal for fieldwork.

  • Prismatic compass is less expensive compared to other compasses.

  • Prismatic compass is not suitable for surveys that require high accuracy.

  • The instrument is affected by local magnetic fields, which can affect the accuracy of the readings.



Surveyor's Compass

  • Surveyor's compass, also known as the circumferentor or the theodolite compass, is a more accurate compass used in surveying.

  • The compass is equipped with a telescope that helps in sighting the target, making it easier to take accurate readings.

  • The compass is mounted on a tripod, which provides stability and accuracy in measurements.

  • Surveyor's compass is suitable for large surveys where high accuracy is required.

  • The instrument is expensive compared to the prismatic compass.

  • Surveyor's compass is not affected by local magnetic fields, making it more accurate than prismatic compass.

  • The instrument is heavier and bulkier compared to the prismatic compass, making it less suitable for fieldwork.

  • Surveyor's compass is ideal for surveys that require high accuracy.



In summary, the prismatic compass is a simple and compact instrument suitable for small surveys where high accuracy is not required, while the surveyor's compass is a more accurate but expensive instrument suitable for larger surveys that require high accuracy. The choice of the compass to use depends on the specific requirements of the survey and the available resources.
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Explain difference between prismatic and eurreyors compass?
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