Civil Engineering Final Exam UPDATED
ACTUAL Exam Questions and CORRECT
Answers
What is the level ? - CORRECT ANSWER - a telescope rotatable about a vertical axis
What does a level do? - CORRECT ANSWER - creates a horizontal line of sight so height
differences can be determined
determines distance with an accuracy of 0.1 to 0.3 metres
Total station surveying - CORRECT ANSWER - the use of electronic survey equipment to
perform horizontal and vertical measurements in reference to a grid system
Horizontal angle vs vertical angle - CORRECT ANSWER - horizontal angle is
independent of height difference provided the telescope moves in a strictly vertical plane
vertical angle is the difference between the prescribed direction and the direction to the point
under consideration
Height difference - CORRECT ANSWER - calculated from the distance between two staff
readings
backsight - foresight
When do you use line levelling? Characteristics of line levelling? - CORRECT
ANSWER - If point A and B are widely separated
Targets distances between 30 and 50 metres
, Where does point A have to be in excavation? - CORRECT ANSWER - point A has to be
at street level and point B a metre below point A
Advantages of automatic target recognition - CORRECT ANSWER - 1) high speed of
measurement
2) constant measuring accuracy independent of the observer
Total station requirements - CORRECT ANSWER - 1) Line of sight ZZ perpendicular to
tilting axis KK
2) Titling axis KK perpendicular to vertical axis VV
3) Vertical axis VV strictly vertical
4) Vertical circle reading precisely zero at zenith
What are the different types of total station errors - CORRECT ANSWER - 1) Line of
sight error
2) Tilting axis error
3) Vertical axis tilt
4) Height index error
What is line of sight error? - CORRECT ANSWER - deviation from the right angle
between the line of sight and tilting axis
What is tilting axis error ? - CORRECT ANSWER - deviation from the right angle
between tilting axis and vertical axis
What is a vertical axis tilt? - CORRECT ANSWER - between plumb line and vertical axis
What is height index error? - CORRECT ANSWER - the angle between the zenith
direction and zero reading of the vertical circle
ACTUAL Exam Questions and CORRECT
Answers
What is the level ? - CORRECT ANSWER - a telescope rotatable about a vertical axis
What does a level do? - CORRECT ANSWER - creates a horizontal line of sight so height
differences can be determined
determines distance with an accuracy of 0.1 to 0.3 metres
Total station surveying - CORRECT ANSWER - the use of electronic survey equipment to
perform horizontal and vertical measurements in reference to a grid system
Horizontal angle vs vertical angle - CORRECT ANSWER - horizontal angle is
independent of height difference provided the telescope moves in a strictly vertical plane
vertical angle is the difference between the prescribed direction and the direction to the point
under consideration
Height difference - CORRECT ANSWER - calculated from the distance between two staff
readings
backsight - foresight
When do you use line levelling? Characteristics of line levelling? - CORRECT
ANSWER - If point A and B are widely separated
Targets distances between 30 and 50 metres
, Where does point A have to be in excavation? - CORRECT ANSWER - point A has to be
at street level and point B a metre below point A
Advantages of automatic target recognition - CORRECT ANSWER - 1) high speed of
measurement
2) constant measuring accuracy independent of the observer
Total station requirements - CORRECT ANSWER - 1) Line of sight ZZ perpendicular to
tilting axis KK
2) Titling axis KK perpendicular to vertical axis VV
3) Vertical axis VV strictly vertical
4) Vertical circle reading precisely zero at zenith
What are the different types of total station errors - CORRECT ANSWER - 1) Line of
sight error
2) Tilting axis error
3) Vertical axis tilt
4) Height index error
What is line of sight error? - CORRECT ANSWER - deviation from the right angle
between the line of sight and tilting axis
What is tilting axis error ? - CORRECT ANSWER - deviation from the right angle
between tilting axis and vertical axis
What is a vertical axis tilt? - CORRECT ANSWER - between plumb line and vertical axis
What is height index error? - CORRECT ANSWER - the angle between the zenith
direction and zero reading of the vertical circle
