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"It is one of the most convenient and versatile instruments for preliminary surveying on the surface or underground."

"It is suitable for forestry, geological and mining purposes, and for simple contour and tracing work."

"Its main part is a magnetic compass with a 5 cm long magnetic needle pivoting on an agate cap."

The given statements are true for:


1. special compasses
2. a mountain compass-transit
3. a convertible transit level
4. a Brunton universal pocket transit

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Correct Answer - Option 4 : a Brunton universal pocket transit

Brunton Universal Pocket transit:

  • It is special type of compass which works on principal of Magnetic induction damping.
  • It is used widely to make accurate navigational and slope-angle measurements in the field.
  • It can be used  geologistsarchaeologistsenvironmental engineersmining engineers and surveyors .

Convertible transit level:

  • It is an optical instrument, or a telescope, with a built-in spirit level that is mounted on a tripod.
  • They are very precise.
  • They are used to determine the relative position of lines and objects.
  • They are also used to provide readings of angles in precise measurements.
  • They are used to establish a reference line.

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