LSIT Mathematics for Surveying 2 — Questions and Answers
Question 1: What is a curve calculation in route surveying?
- Determining elements of horizontal and vertical curves for road and railway design (Correct answer)
- Calculating curvature of the earth
- Measuring curved walls
- Bending survey instruments
Correct answer: Determining elements of horizontal and vertical curves for road and railway design
Road and rail design requires precise curve geometry.
Question 2: What is a vertical curve?
- A parabolic curve connecting two grades on a roadway profile (Correct answer)
- A curve visible from above
- A circular road curve
- A survey error
Correct answer: A parabolic curve connecting two grades on a roadway profile
These curves provide smooth grade transitions in road design.
Question 3: What is bearing-bearing intersection?
- Finding a point location from bearings observed from two known points (Correct answer)
- Meeting of two roads
- Two compass readings averaged
- A type of benchmark
Correct answer: Finding a point location from bearings observed from two known points
Two directional observations from known points locate an unknown point.
Question 4: What is a coordinate transformation?
- Converting positions between different coordinate systems (Correct answer)
- Moving physical markers
- Changing map colors
- Updating software
Correct answer: Converting positions between different coordinate systems
Positions must sometimes be expressed in different reference systems.
Question 5: What is the radius of curvature in route surveying?
- The radius of the circle that defines a horizontal curve (Correct answer)
- The earths radius
- The lens curvature of survey instruments
- The curvature of contour lines
Correct answer: The radius of the circle that defines a horizontal curve
Road curves are defined by the radius of an imaginary circle.
Question 6: What is an inverse calculation in surveying?
- Computing bearing and distance between two known coordinate points (Correct answer)
- Reversing a survey
- Undoing a measurement
- Calculating the opposite of a result
Correct answer: Computing bearing and distance between two known coordinate points
Known coordinates yield the direction and distance between them.
LSIT Mathematics for Surveying 2
What is a curve calculation in route surveying?