ILLINOIS LAND SURVEYOR PRACTICE STUDY GUIDE — ORIGINAL PRACTICE QUESTIONS
WITH RATIONALES 2026
DISCLAIMER: This document contains original practice questions created for educational purposes.
These are NOT actual exam questions from the Illinois Jurisdictional Land Surveyor Examination. This is a
study aid, not a substitute for the official exam.
CORE DOMAINS COVERED
Boundary Law and Legal Principles
Land Surveying Principles and Mathematics
Coordinate Systems and Geodetics
Topographic Surveying and Mapping
Professional Ethics and Standards
Business Practices and Regulations
Illinois Jurisdictional Requirements
Measurement Techniques and Instrumentation
,INTRODUCTION
This practice study guide is designed to help candidates prepare for the Illinois Land Surveyor Examination
by testing knowledge across essential professional competencies. The exam assesses both theoretical
understanding and applied decision-making skills required for professional land surveying practice.
Questions include multiple-choice format with scenario-based problems that emphasize real-world
application, regulatory compliance, and ethical judgment. Mastery of these topics ensures surveyors can
perform accurately, legally, and ethically in professional practice.
SECTION ONE: PRACTICE QUESTIONS 1–100
Question 1
In a boundary dispute where deed descriptions conflict, which element of evidence generally has the highest
priority?
A. Distance
B. Direction
C. Natural monuments
D. Artificial monuments
🟢 C. Natural monuments
,🔴 RATIONALE: Natural monuments (rivers, trees, streams) have the highest priority in boundary hierarchy
because they are most permanent and least likely to be moved or altered. The classic order is: natural
monuments > artificial monuments > directions > distances > area.
Question 2
Which coordinate system is the official state plane coordinate system for Illinois?
A. UTM Zone 15N
B. Illinois State Plane Coordinate System (NAD 83)
C. PLANS (Illinois Plane Coordinate System)
D. NAD 27 Illinois East
🟢 B. Illinois State Plane Coordinate System (NAD 83)
🔴 RATIONALE: The Illinois State Plane Coordinate System based on NAD 83 is the officially adopted state
plane system for Illinois surveying practice, used for legal descriptions and cadastral work.
Question 3
A surveyor discovers an old brass cap monument from a 1920s government survey that conflicts with a modern
deed description. What should the surveyor do FIRST?
, A. Ignore the brass cap and follow the deed
B. Follow the brass cap as it is a government monument
C. Research the historical survey records and monument origin
D. Call the county recorder to remove the monument
🟢 C. Research the historical survey records and monument origin
🔴 RATIONALE: Before making any determination, the surveyor must investigate the historical context of the
monument. Brass caps from government surveys may have specific legal significance, but the surveyor needs to
understand its origin and whether it controls the boundary.
Question 4
What is the minimum number of control points required to establish a reliable closed-loop traverse?
A. 2
B. 3
C. 4
D. 5
🟢 B. 3
🔴 RATIONALE: A closed-loop traverse requires at least 3 control points to create a geometrically closed figure
that allows for error detection and closure calculation. Two points only create an open line.
WITH RATIONALES 2026
DISCLAIMER: This document contains original practice questions created for educational purposes.
These are NOT actual exam questions from the Illinois Jurisdictional Land Surveyor Examination. This is a
study aid, not a substitute for the official exam.
CORE DOMAINS COVERED
Boundary Law and Legal Principles
Land Surveying Principles and Mathematics
Coordinate Systems and Geodetics
Topographic Surveying and Mapping
Professional Ethics and Standards
Business Practices and Regulations
Illinois Jurisdictional Requirements
Measurement Techniques and Instrumentation
,INTRODUCTION
This practice study guide is designed to help candidates prepare for the Illinois Land Surveyor Examination
by testing knowledge across essential professional competencies. The exam assesses both theoretical
understanding and applied decision-making skills required for professional land surveying practice.
Questions include multiple-choice format with scenario-based problems that emphasize real-world
application, regulatory compliance, and ethical judgment. Mastery of these topics ensures surveyors can
perform accurately, legally, and ethically in professional practice.
SECTION ONE: PRACTICE QUESTIONS 1–100
Question 1
In a boundary dispute where deed descriptions conflict, which element of evidence generally has the highest
priority?
A. Distance
B. Direction
C. Natural monuments
D. Artificial monuments
🟢 C. Natural monuments
,🔴 RATIONALE: Natural monuments (rivers, trees, streams) have the highest priority in boundary hierarchy
because they are most permanent and least likely to be moved or altered. The classic order is: natural
monuments > artificial monuments > directions > distances > area.
Question 2
Which coordinate system is the official state plane coordinate system for Illinois?
A. UTM Zone 15N
B. Illinois State Plane Coordinate System (NAD 83)
C. PLANS (Illinois Plane Coordinate System)
D. NAD 27 Illinois East
🟢 B. Illinois State Plane Coordinate System (NAD 83)
🔴 RATIONALE: The Illinois State Plane Coordinate System based on NAD 83 is the officially adopted state
plane system for Illinois surveying practice, used for legal descriptions and cadastral work.
Question 3
A surveyor discovers an old brass cap monument from a 1920s government survey that conflicts with a modern
deed description. What should the surveyor do FIRST?
, A. Ignore the brass cap and follow the deed
B. Follow the brass cap as it is a government monument
C. Research the historical survey records and monument origin
D. Call the county recorder to remove the monument
🟢 C. Research the historical survey records and monument origin
🔴 RATIONALE: Before making any determination, the surveyor must investigate the historical context of the
monument. Brass caps from government surveys may have specific legal significance, but the surveyor needs to
understand its origin and whether it controls the boundary.
Question 4
What is the minimum number of control points required to establish a reliable closed-loop traverse?
A. 2
B. 3
C. 4
D. 5
🟢 B. 3
🔴 RATIONALE: A closed-loop traverse requires at least 3 control points to create a geometrically closed figure
that allows for error detection and closure calculation. Two points only create an open line.
