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A theodolite is called a transit theodolite, when its telescope can be revolved through a complete revolution about its  

A theodolite is called a transit theodolite, when its telescope can be revolved through a complete revolution about its   Correct Answer <p>Horizontal axis in a vertical plane</p>

Theodolites may be classified into as:

  1. Transit Theodolite: A theodolite is said to be a transit one when its telescope can be revolved through 180° in a vertical plane about its horizontal axis, thus directing the telescope in the exact opposite direction.
  2. Non-Transit Theodolite: A theodolite is said to be a non-transit one when its telescope cannot be revolved through 180° in a vertical plane about its horizontal axis. Examples are Y-theodolite and Everest theodolite.

∴ In transit theodolite, the line of the sight can be reversed by revolving the telescope through 180° in the vertical plane.

Related Questions

If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference to
i) altitude bubble on index frame
ii) altitude bubble on index frame if it is to be used as a level
iii) altitude bubble on telescope
iv) altitude bubble on telescope if it is to be used as a level
The correct answer is
A transit theodolite is one in which the line of sight can be reversed by resolving the telescope through 180° in a vertical plane.
A non-transit theodolite is one in which the line of sight can be reversed by resolving the telescope through 180° in a vertical plane.
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If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference toi) altitude bubble on index frameii) altitude bubble on index frame if it is to be used as a leveliii) altitude bubble on telescopeiv) altitude bubble on telescope if it is to be used as a level The correct answer is
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