To find the height of the building using the theodolite
Answers
Explanation:
Mark the point at which the theodolite will be set up with a surveyor’s nail or a stake.
This point is the basis for measuring angles and distances.
Set up the tripod. Make sure the height of the tripod allows the instrument (the theodolite) to be eye-level.
The centered hole of the mounting plate should be over the nail or stake.
Drive the tripod legs into the ground using the brackets on the sides of each leg.
Mount the theodolite by placing it atop the tripod, and screw it in place with the mounting knob.
Measure the height between the ground and the instrument. This will be used a reference to other stations.
Level the theodolite by adjusting the tripod legs and using the bulls-eye level. You can make slight tunings with the leveling knobs to get it just right.
Adjust the small sight (the vertical plummet) found on the bottom of the theodolite.
The vertical plummet allows you to do ensure the instrument remains over the nail or stake. Adjust the plummet using the knobs on the bottom.
Aim the crosshairs in the main scope at the point to be measured. Use the locking knobs on the side of the theodolite to keep it aimed on the point.
Record the horizontal and vertical angles using the viewing scope found on the theodolite’s side.