What is the primary use of a theodolite in surveying?
B
Measuring horizontal and vertical angles
Analysis & Theory
Theodolite is a precision instrument used mainly for measuring horizontal and vertical angles.
Which part of the theodolite is used to measure vertical angles?
Analysis & Theory
The vertical circle attached to the telescope allows vertical angle measurement.
Temporary adjustments of a theodolite include all **except**:
Analysis & Theory
Adjusting cross hairs is a permanent adjustment, not a temporary one.
The process of setting the vertical axis of the theodolite exactly over a station is called:
Analysis & Theory
Centering ensures the vertical axis passes through the survey station point.
In which method is the theodolite used to measure horizontal angles directly?
Analysis & Theory
In the ordinary method, the horizontal angle is read directly between two points.
Which of the following is a **permanent adjustment** of theodolite?
B
Centering the instrument
C
Making vertical axis truly vertical
Analysis & Theory
Permanent adjustments align the mechanical parts, like making the vertical axis truly vertical.
Which type of theodolite reads angles directly and has verniers?
Analysis & Theory
Transit theodolites allow full rotation of the telescope and have vernier scales.
Which of the following is **not** a component of the theodolite?
Analysis & Theory
The plumb bob is a centering accessory, not a structural part of the theodolite.
Which method improves the accuracy of angle measurement in theodolite surveys?
Analysis & Theory
Repetition method involves multiple measurements and averaging to reduce errors.
Which instrument is often used in combination with a theodolite for distance measurement?
C
EDM (Electronic Distance Measurement)
Analysis & Theory
EDM devices are often combined with theodolites to measure distances electronically.