A theodolite fitted with ... is used for tacheometry

In a theodolite the line of collimation and the axis of telescope are

The length of an arrow should be

Which of the following is not used in measuring perpendicular offsets

Setting out of a simple curve by two theodolite method eliminates:

In Johnson's table, the table is levelled by adjusting................................

What is least count in measuring horizontal and vertical angles in theodolite?

Size of a theodolite is specified by.................................

Sensitivity of bubble tube can be increased by