Podcast
Questions and Answers
What is the main purpose of a theodolite?
What is the main purpose of a theodolite?
- Measuring distances accurately
- Measuring angles in horizontal and vertical planes (correct)
- Measuring time accurately
- Measuring elevations of mountains
What is the maximum range of accurate measurement a theodolite can achieve?
What is the maximum range of accurate measurement a theodolite can achieve?
- 10 arc seconds
- 30 degrees
- 20 arc seconds (correct)
- 60 degrees
Which type of theodolite is mounted within one of the standards with a full 360° scale?
Which type of theodolite is mounted within one of the standards with a full 360° scale?
- Transit theodolite (correct)
- Non-transit theodolite
- Vernier Theodolite
- None of the above
What is the function of the vertical circle in a theodolite?
What is the function of the vertical circle in a theodolite?
What is the purpose of eliminating parallax in a theodolite's telescope?
What is the purpose of eliminating parallax in a theodolite's telescope?
Apart from measuring deflection angles, what other use does a theodolite have?
Apart from measuring deflection angles, what other use does a theodolite have?
What is used to hold the telescope at a particular vertical angle?
What is used to hold the telescope at a particular vertical angle?
Which component must be leveled before using the instrument?
Which component must be leveled before using the instrument?
What is used to center the instrument exactly over a station mark?
What is used to center the instrument exactly over a station mark?
Which part of the instrument houses the foot screws and the bearing for the vertical axis?
Which part of the instrument houses the foot screws and the bearing for the vertical axis?
What is used for levelling particularly when taking vertical angle observations?
What is used for levelling particularly when taking vertical angle observations?
Which component is used to define the horizontal direction in which the telescope is sighted?
Which component is used to define the horizontal direction in which the telescope is sighted?
What is used during a sequence or 'round' of horizontal angle measurements?
What is used during a sequence or 'round' of horizontal angle measurements?
What is used to gradually rotate the horizontal circle when it is clamped?
What is used to gradually rotate the horizontal circle when it is clamped?
What is placed on the upper plate and known as the plate bubble?
What is placed on the upper plate and known as the plate bubble?
What carries two Vernier at its extremities and forms part of T-frame?
What carries two Vernier at its extremities and forms part of T-frame?
What is the purpose of transiting in theodolite usage?
What is the purpose of transiting in theodolite usage?
What does 'face left' refer to in the context of theodolite operation?
What does 'face left' refer to in the context of theodolite operation?
What is the axis of the telescope in theodolite terminology?
What is the axis of the telescope in theodolite terminology?
What is meant by 'changing face' in the context of theodolite operation?
What is meant by 'changing face' in the context of theodolite operation?
What is 'centering' in theodolite usage?
What is 'centering' in theodolite usage?
What does 'face right' signify when using a theodolite?
What does 'face right' signify when using a theodolite?
In theodolite operation, what is temporary adjustment primarily focused on?
In theodolite operation, what is temporary adjustment primarily focused on?
What is 'swinging the telescope' related to in a theodolite?
What is 'swinging the telescope' related to in a theodolite?
In a theodolite, what action results from 'line of collimation'?
In a theodolite, what action results from 'line of collimation'?
What does 'vertical axis' represent in a theodolite equipment?
What does 'vertical axis' represent in a theodolite equipment?
What is recorded in column 4 of Gale's Traverse Table?
What is recorded in column 4 of Gale's Traverse Table?
What condition needs to be satisfied by the sum of all interior angles during traverse adjustments?
What condition needs to be satisfied by the sum of all interior angles during traverse adjustments?
What should be done if the sum of all exterior angles during the traverse does not meet the geometric conditions?
What should be done if the sum of all exterior angles during the traverse does not meet the geometric conditions?
How are corrections applied during traverse adjustments?
How are corrections applied during traverse adjustments?
What calculation is made to find the closing error in a traverse?
What calculation is made to find the closing error in a traverse?
What rule can be applied to calculate corrections during traverse adjustments?
What rule can be applied to calculate corrections during traverse adjustments?
How are corrections distributed to all sides of a traverse in graphical balancing?
How are corrections distributed to all sides of a traverse in graphical balancing?
What does a horizontal line drawn from Po to P' represent in graphical balancing?
What does a horizontal line drawn from Po to P' represent in graphical balancing?
'Qo Qa, Ro Ra, So Sa, and To Ta' represent what in graphical balancing corrections?
'Qo Qa, Ro Ra, So Sa, and To Ta' represent what in graphical balancing corrections?
'Pa Qa Ra Sa Ta' provide what in graphical balancing of a traverse?
'Pa Qa Ra Sa Ta' provide what in graphical balancing of a traverse?
In the method of reiteration, what is done to ensure the sum of the measured angles is 360º?
In the method of reiteration, what is done to ensure the sum of the measured angles is 360º?
What is the main purpose of a traverse in surveying?
What is the main purpose of a traverse in surveying?
How are vertical angles measured in surveying?
How are vertical angles measured in surveying?
What is the purpose of the levelling process described for a theodolite?
What is the purpose of the levelling process described for a theodolite?
Which method is used to measure a horizontal angle to a finer degree of accuracy?
Which method is used to measure a horizontal angle to a finer degree of accuracy?
What does sighting a signal at P with zero reading on Vernier A indicate in surveying?
What does sighting a signal at P with zero reading on Vernier A indicate in surveying?
What is the formula to calculate the sum of interior angles for a traverse?
What is the formula to calculate the sum of interior angles for a traverse?
What operation is performed to adjust the closing error in a closed traverse?
What operation is performed to adjust the closing error in a closed traverse?
Which method is used for balancing a traverse when angular measurements are more precise than linear measurements?
Which method is used for balancing a traverse when angular measurements are more precise than linear measurements?
What is the condition that must be satisfied in a closed traverse regarding departures and latitudes?
What is the condition that must be satisfied in a closed traverse regarding departures and latitudes?
Which component of a line represents the north-south direction?
Which component of a line represents the north-south direction?
What does the term 'closing error' refer to in a closed traverse?
What does the term 'closing error' refer to in a closed traverse?
In which direction is the total error in departure and latitude distributed in Bowditch's method?
In which direction is the total error in departure and latitude distributed in Bowditch's method?
What value must $ ext{Σ DT}$ and $ ext{Σ LT}$ satisfy for the transit rule method of balancing a traverse?
What value must $ ext{Σ DT}$ and $ ext{Σ LT}$ satisfy for the transit rule method of balancing a traverse?
