IMSA Signal Technician Level 1 End of Chapter
Questions With 100% Correct Answers.
SECTION 1: IMSA & Industry Fundamentals (12 Questions)
Q1: What does IMSA stand for?
A. International Municipal Safety Association
B. International Municipal Signal Association [CORRECT]
C. Interstate Municipal Signal Administration
D. International Management Signal Association
Correct Answer: B
Rationale: Correct because IMSA stands for International Municipal Signal
Association, the organization founded in 1896 that certifies signal technicians
and provides safety education.
Q2: In what year was IMSA founded?
A. 1890
B. 1896 [CORRECT]
C. 1902
D. 1912
Correct Answer: B
Rationale: Correct because IMSA was founded in 1896, with Thomas A. Edison
among its esteemed early members.
Q3: What is the primary function of IMSA?
A. Traffic signal manufacturing
B. Safety education [CORRECT]
C. Municipal government lobbying
D. Traffic law enforcement
,Correct Answer: B
Rationale: Correct because the primary function of IMSA is safety education,
certifying tens of thousands of technicians and serving as the most respected
name in public safety.
Q4: Who invented the first electric traffic signal in 1912?
A. Garrett Morgan
B. William Potts
C. Lester Wire [CORRECT]
D. J.P. Knight
Correct Answer: C
Rationale: Correct because Lester Wire, a Salt Lake City policeman, invented the
first electric traffic signal in 1912 featuring red/green lights and a buzzer.
Q5: Which person introduced the amber/yellow light concept in 1920?
A. Lester Wire
B. Garrett Morgan
C. William Potts [CORRECT]
D. J.P. Knight
Correct Answer: C
Rationale: Correct because Detroit police officer William Potts introduced the
amber/yellow light concept to traffic signals in 1920.
Q6: Who invented the three-position traffic signal in 1923?
A. Lester Wire
B. William Potts
C. Garrett Morgan [CORRECT]
D. J.P. Knight
,Correct Answer: C
Rationale: Correct because Garrett Morgan invented the three-position traffic
signal in 1923, adding the caution/amber indication between stop and go.
Q7: Which of the following is NOT a recognized IMSA certification?
A. Traffic Signal Level II Design/Engineer Technician
B. Traffic Signal Level II Field Technician
C. Traffic Signal Level II Bench Technician
D. Traffic Signal Level III Bridge Design Technician [CORRECT]
Correct Answer: D
Rationale: Correct because IMSA does not offer a "Traffic Signal Level III Bridge
Design Technician" certification; recognized certifications include Level II
Design/Engineer, Field, and Bench Technician.
Q8: Which of the following is NOT a MUTCD sentence type?
A. Standards
B. Guidance
C. Support
D. Objectives [CORRECT]
Correct Answer: D
Rationale: Correct because MUTCD sentence types include Standards
(requirements), Guidance (recommendations), and Support (additional
clarification); "Objectives" is not a recognized sentence type.
Q9: What does the National Electrical Code (NEC) set standards for?
A. Traffic signal timing
B. Safe electrical installations [CORRECT]
C. Municipal signal maintenance
D. Work zone safety
, Correct Answer: B
Rationale: Correct because the NEC (National Electrical Code) sets standards for
safe electrical installations and is published by the National Fire Protection
Association (NFPA).
Q10: What does NESC provide safety rules for?
A. Traffic signal controllers only
B. Electric supply stations and communication lines [CORRECT]
C. Municipal road construction
D. Pedestrian crosswalks
Correct Answer: B
Rationale: Correct because NESC (National Electrical Safety Code) provides
safety rules for electric supply stations and communication lines.
Q11: Who made the first recorded attempt to regulate traffic with a mechanical
signal in London, England, in 1868?
A. Lester Wire
B. J.P. Knight [CORRECT]
C. Garrett Morgan
D. William Potts
Correct Answer: B
Rationale: Correct because railway engineer J.P. Knight made the first recorded
attempt to regulate traffic with a mechanical signal in London, England, in 1868,
featuring rotating arms with stop/go symbols.
Q12: The first mechanical traffic signal in London featured which of the
following?
A. Electric lights
B. Rotating arms with stop/go symbols [CORRECT]
Questions With 100% Correct Answers.
SECTION 1: IMSA & Industry Fundamentals (12 Questions)
Q1: What does IMSA stand for?
A. International Municipal Safety Association
B. International Municipal Signal Association [CORRECT]
C. Interstate Municipal Signal Administration
D. International Management Signal Association
Correct Answer: B
Rationale: Correct because IMSA stands for International Municipal Signal
Association, the organization founded in 1896 that certifies signal technicians
and provides safety education.
Q2: In what year was IMSA founded?
A. 1890
B. 1896 [CORRECT]
C. 1902
D. 1912
Correct Answer: B
Rationale: Correct because IMSA was founded in 1896, with Thomas A. Edison
among its esteemed early members.
Q3: What is the primary function of IMSA?
A. Traffic signal manufacturing
B. Safety education [CORRECT]
C. Municipal government lobbying
D. Traffic law enforcement
,Correct Answer: B
Rationale: Correct because the primary function of IMSA is safety education,
certifying tens of thousands of technicians and serving as the most respected
name in public safety.
Q4: Who invented the first electric traffic signal in 1912?
A. Garrett Morgan
B. William Potts
C. Lester Wire [CORRECT]
D. J.P. Knight
Correct Answer: C
Rationale: Correct because Lester Wire, a Salt Lake City policeman, invented the
first electric traffic signal in 1912 featuring red/green lights and a buzzer.
Q5: Which person introduced the amber/yellow light concept in 1920?
A. Lester Wire
B. Garrett Morgan
C. William Potts [CORRECT]
D. J.P. Knight
Correct Answer: C
Rationale: Correct because Detroit police officer William Potts introduced the
amber/yellow light concept to traffic signals in 1920.
Q6: Who invented the three-position traffic signal in 1923?
A. Lester Wire
B. William Potts
C. Garrett Morgan [CORRECT]
D. J.P. Knight
,Correct Answer: C
Rationale: Correct because Garrett Morgan invented the three-position traffic
signal in 1923, adding the caution/amber indication between stop and go.
Q7: Which of the following is NOT a recognized IMSA certification?
A. Traffic Signal Level II Design/Engineer Technician
B. Traffic Signal Level II Field Technician
C. Traffic Signal Level II Bench Technician
D. Traffic Signal Level III Bridge Design Technician [CORRECT]
Correct Answer: D
Rationale: Correct because IMSA does not offer a "Traffic Signal Level III Bridge
Design Technician" certification; recognized certifications include Level II
Design/Engineer, Field, and Bench Technician.
Q8: Which of the following is NOT a MUTCD sentence type?
A. Standards
B. Guidance
C. Support
D. Objectives [CORRECT]
Correct Answer: D
Rationale: Correct because MUTCD sentence types include Standards
(requirements), Guidance (recommendations), and Support (additional
clarification); "Objectives" is not a recognized sentence type.
Q9: What does the National Electrical Code (NEC) set standards for?
A. Traffic signal timing
B. Safe electrical installations [CORRECT]
C. Municipal signal maintenance
D. Work zone safety
, Correct Answer: B
Rationale: Correct because the NEC (National Electrical Code) sets standards for
safe electrical installations and is published by the National Fire Protection
Association (NFPA).
Q10: What does NESC provide safety rules for?
A. Traffic signal controllers only
B. Electric supply stations and communication lines [CORRECT]
C. Municipal road construction
D. Pedestrian crosswalks
Correct Answer: B
Rationale: Correct because NESC (National Electrical Safety Code) provides
safety rules for electric supply stations and communication lines.
Q11: Who made the first recorded attempt to regulate traffic with a mechanical
signal in London, England, in 1868?
A. Lester Wire
B. J.P. Knight [CORRECT]
C. Garrett Morgan
D. William Potts
Correct Answer: B
Rationale: Correct because railway engineer J.P. Knight made the first recorded
attempt to regulate traffic with a mechanical signal in London, England, in 1868,
featuring rotating arms with stop/go symbols.
Q12: The first mechanical traffic signal in London featured which of the
following?
A. Electric lights
B. Rotating arms with stop/go symbols [CORRECT]
