IAAO COURSE 600 MAPPING ACTUAL
EXAM PAPER FULL QUESTIONS AND
CORRECT ANSWERS 2026
◉ Base Map
Answer: What is created form aerial photography and used as the
foundation for the parcel mapping program
◉ Publication Data
Answer: Usually includes the name and location of the agency or
entity publishing the map, date of publication, and dates of
subsequent revisions
◉ P.I. (Point of Intersection)
Answer: The point where Tangents Intersect
◉ T. (Tangent distance)
Answer: Each curve has two Tangents and they are always equal
◉ P.C. (Point of Curvature)
Answer: The beginning of the curve
, ◉ Curves
Answer: Some road curves, particularly those for small rural roads
are irregular, as the result of a path becoming a trail, the trail
becoming a road, and the road eventually being paved
◉ Angles to the left
Answer: Are measured counterclockwise by looking back down the
preceding line and sometimes called counterclockwise angles
◉ Angles to the Right
Answer: Are measured clockwise by looking back down the
preceding line and are sometimes called clockwise angles.
Sometimes called azimuths from the back lines.
◉ Deflection Angle
Answer: Measured between a line and the prolongation of the
proceeding line
◉ Azimuth
Answer: Angles measured clockwise from either due north or due
south to the line being described
◉ Declination
EXAM PAPER FULL QUESTIONS AND
CORRECT ANSWERS 2026
◉ Base Map
Answer: What is created form aerial photography and used as the
foundation for the parcel mapping program
◉ Publication Data
Answer: Usually includes the name and location of the agency or
entity publishing the map, date of publication, and dates of
subsequent revisions
◉ P.I. (Point of Intersection)
Answer: The point where Tangents Intersect
◉ T. (Tangent distance)
Answer: Each curve has two Tangents and they are always equal
◉ P.C. (Point of Curvature)
Answer: The beginning of the curve
, ◉ Curves
Answer: Some road curves, particularly those for small rural roads
are irregular, as the result of a path becoming a trail, the trail
becoming a road, and the road eventually being paved
◉ Angles to the left
Answer: Are measured counterclockwise by looking back down the
preceding line and sometimes called counterclockwise angles
◉ Angles to the Right
Answer: Are measured clockwise by looking back down the
preceding line and are sometimes called clockwise angles.
Sometimes called azimuths from the back lines.
◉ Deflection Angle
Answer: Measured between a line and the prolongation of the
proceeding line
◉ Azimuth
Answer: Angles measured clockwise from either due north or due
south to the line being described
◉ Declination
