Geodesy 1 - Quiz III

Trigonometric leveling is a surveying method used to determine elevations based on ...........

• Vertical angles

• Horizontal angles

• Azimuths

• None of the above

In trigonometric leveling, the instrument used to measure angles is called a ............

• Spirit level

• Theodolite

• Thermometer

• None of the above

The trigonometric leveling is more accurate than other leveling methods

• True

• False

Which of the following is a correction in the case of long distances for trigonometric leveling?

• atmospheric refraction

• centering

• sag

• None of the above

The numerical value of the correction for curvature depends on..................

• vertical angle

• horizontal angle

• The distance between instrument stations

• None of the above

The correction for curvature is ......................

• Always positive

• Always negative

• Negative for uphill slopes and positive for downhill slopes

• Positive for uphill slopes and negative for downhill slopes

The accuracy of trigonometric leveling depends on ...................

• The precision of the theodolite

• The skill of the surveyor

• The atmospheric conditions

• All of the above

Applications of Trigonometric leveling include ......................

• Construction projects

• Mining operations

• Land surveying

• All of the above

Trigonometric leveling is an indirect leveling method because .................

• It involves measuring vertical distances directly

• It relies on measuring horizontal distances instead

• It uses trigonometric functions to calculate vertical distances

• None of the above

Trigonometric leveling can be used to determine the height of a tower by measuring ....................

• The angle of elevation to the top of the tower

• The vertical distance to the tower

• The horizontal distance to the tower

• None of the above