IMSA Traffic Signal Technician Level II (Latest 2026/2027 Update) IMSA Level II Exam
IMSA Traffic Signal Technician Level II (Latest 2026/2027 Update)
Questions and Verified Answers | Grade A | 100% Correct
Section 1: Safety, Standards, Professional Conduct
Q1: According to IMSA guidelines, what is the number one priority for a traffic signal technician working in the field?
A. Completing the assigned work order within the scheduled timeframe
B. Ensuring personal safety and the safety of the public at all times **[CORRECT]**
C. Following the supervisor's instructions without deviation
D. Minimizing traffic disruption during signal maintenance
Correct Answer: B
Rationale: IMSA establishes that safety is always the number one priority for every traffic signal technician. OSHA regulations and IMSA
professional standards both mandate that no task, regardless of urgency or supervisory direction, supersedes personal and public safety. This
principle must be applied in every work situation, from routine maintenance to emergency repairs.
Q2: A technician is performing maintenance on a signal cabinet located within an active work zone on a four-lane arterial.
Which OSHA standard most directly governs the setup and maintenance of the work zone?
A. OSHA 29 CFR 1926 Subpart C - General Safety and Health Provisions
B. OSHA 29 CFR 1926 Subpart G - Signs, Signals, and Barricades **[CORRECT]**
C. OSHA 29 CFR 1910 Subpart S - Electrical
D. OSHA 29 CFR 1926 Subpart V - Power Transmission and Distribution
Correct Answer: B
Rationale: OSHA 29 CFR 1926 Subpart G specifically addresses signs, signals, and barricades for construction and maintenance work zones.
The MUTCD Part 6 provides detailed temporary traffic control guidance that complements OSHA requirements. Technicians must be familiar
with both standards when establishing work zones for signal maintenance activities.
Q3: Under MUTCD guidelines, which three categories of safety must be addressed when establishing a temporary traffic
control zone for signal work?
A. Worker safety, motorist safety, and pedestrian safety **[CORRECT]**
B. Electrical safety, structural safety, and traffic safety
C. Personal protective equipment, vehicle speed, and visibility
D. Warning devices, barricades, and flagging procedures
Correct Answer: A
Rationale: The MUTCD identifies three essential safety categories in any temporary traffic control zone: worker safety, motorist safety, and
pedestrian safety. All three must be considered simultaneously when planning and executing signal maintenance operations. Neglecting any
single category creates an unacceptable safety risk that may result in citations, injuries, or fatalities.
Q4: A technician arrives at a signal intersection and discovers that the pre-established work zone has inadequate
channelization devices. The supervisor instructs the technician to proceed with the work anyway to avoid delays. What is the
correct course of action?
A. Proceed with the work as instructed since the supervisor has authority over the work zone
B. Refuse to work until the work zone is properly set up per MUTCD and OSHA standards **[CORRECT]**
C. Begin work but document the deficiency in the daily maintenance log for later correction
D. Request a different work assignment at a safer location while the work zone is corrected
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,IMSA Traffic Signal Technician Level II (Latest 2026/2027 Update) IMSA Level II Exam
Correct Answer: B
Rationale: A technician must never begin work in an improperly established work zone, regardless of supervisory direction. IMSA professional
conduct standards require technicians to exercise independent judgment regarding safety. OSHA grants workers the right to refuse unsafe work
without fear of retaliation, and the technician must communicate the deficiency clearly and wait for proper setup.
Q5: A Professional Engineer (PE) stamps and signs signal timing plans for a corridor upgrade project. According to IMSA
and NEMA standards, what specific responsibility does the PE hold regarding the upgrade?
A. The PE is responsible only for the initial design and bears no responsibility for field implementation or subsequent
modifications
B. The PE assumes professional responsibility for the adequacy, safety, and compliance of the signal design
**[CORRECT]**
C. The PE is responsible solely for ensuring the plans meet MUTCD minimum yellow and all-red timing intervals
D. The PE delegates all field responsibility to the installing technician upon plan approval
Correct Answer: B
Rationale: A Professional Engineer who stamps and signs signal plans assumes full professional responsibility for the adequacy, safety, and
regulatory compliance of the design. This includes conformance with MUTCD, NEMA, and applicable local standards. While field
technicians are responsible for correct installation, the PE seal certifies that the design itself meets all applicable engineering requirements and
standards.
Q6: What is the minimum Personal Protective Equipment (PPE) required for a technician performing above-ground signal
head maintenance from a bucket truck?
A. Hard hat, safety glasses, high-visibility vest, and fall protection harness **[CORRECT]**
B. Hard hat, safety glasses, and high-visibility vest only since the bucket provides fall protection
C. Hard hat, safety glasses, high-visibility vest, fall protection harness, and dielectric gloves rated for line voltage
D. Safety glasses, high-visibility vest, and steel-toe boots only when working from an aerial lift device
Correct Answer: A
Rationale: OSHA 29 CFR 1926.501 requires fall protection for any work at heights of six feet or above, which applies to bucket truck
operations. The standard PPE ensemble of hard hat, safety glasses, and high-visibility vest is combined with a fall protection harness per
IMSA and OSHA requirements. Dielectric gloves may be additionally required when working near energized electrical equipment.
Q7: A traffic signal technician observes a coworker bypassing the conflict monitor to force a signal phase during
troubleshooting. What professional obligation does the technician have under IMSA standards?
A. Report the incident to the supervisor immediately and document the unsafe practice **[CORRECT]**
B. Ignore the action since it is a common field troubleshooting shortcut
C. Assist the coworker only if the conflict monitor is bypassed for less than five minutes
D. Wait until the end of the shift to mention the concern to the coworker privately
Correct Answer: A
Rationale: IMSA professional conduct standards require technicians to report any safety violations immediately to a supervisor. Bypassing a
conflict monitor creates a potentially dangerous condition where conflicting green indications could occur. Per NEMA TS-2 standards, the
conflict monitor is a critical safety device that must never be bypassed. Documenting the incident ensures proper follow-up and corrective
action.
Q8: When working near high-voltage electrical components inside a signal cabinet, which OSHA standard governs the safe
work practices and requirements for electrical safety?
A. OSHA 29 CFR 1926 Subpart G - Signs, Signals, and Barricades
B. OSHA 29 CFR 1910.137 - Electrical Protective Equipment
C. OSHA 29 CFR 1910.269 - Electric Power Generation, Transmission, and Distribution **[CORRECT]**
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, IMSA Traffic Signal Technician Level II (Latest 2026/2027 Update) IMSA Level II Exam
D. OSHA 29 CFR 1910.147 - The Control of Hazardous Energy (Lockout/Tagout)
Correct Answer: C
Rationale: OSHA 29 CFR 1910.269 covers electric power generation, transmission, and distribution, which includes the high-voltage
components found in traffic signal cabinets such as 120VAC service entrances and switchgear. While lockout/tagout (1910.147) and electrical
PPE (1910.137) are related, 1910.269 is the primary standard governing safe work practices around high-voltage electrical equipment in
utility and signal applications.
Q9: A signal technician receives a work order to replace a damaged signal pole that was struck by a vehicle. Before
beginning the replacement, which document should be consulted first regarding the structural requirements for the new pole?
A. The original construction as-built drawings and approved standard details **[CORRECT]**
B. The MUTCD Section 4D on signal pole placement
C. The manufacturer specification sheet for the signal head weight only
D. The local utility company pole attachment agreement
Correct Answer: A
Rationale: Before replacing a damaged signal pole, the technician must consult the original construction as-built drawings and approved
standard details to ensure the replacement meets the same structural and foundation requirements. MUTCD addresses signal placement
location but not structural specifications. The pole must be installed to the same or current applicable standard to maintain structural integrity
and safety.
Q10: Under MUTCD standards, what is the minimum required clearance between the bottom of a signal head and the
pavement surface for a signal mounted on a mast arm over a travel lane?
A. 14 feet
B. 15 feet
C. 16 feet
D. 18 feet **[CORRECT]**
Correct Answer: D
Rationale: The MUTCD Section 4D.10 requires a minimum vertical clearance of 18 feet between the pavement surface and the bottom of a
signal head mounted over a travel lane. This clearance ensures safe passage for all legal-height vehicles. The 15-foot and 16-foot minimums
apply to other types of overhead sign or signal mounting configurations, but 18 feet is the specific requirement for signal heads over travel
lanes.
Q11: A technician is documenting field conditions at an intersection where a signal was knocked down by a truck. Which of
the following is the most important reason for thorough documentation?
A. To justify overtime pay for the emergency repair crew
B. To establish an accurate record for liability, insurance, and future reference **[CORRECT]**
C. To comply with the IMSA continuing education documentation requirement
D. To provide data for the annual traffic signal maintenance budget request
Correct Answer: B
Rationale: Thorough documentation of field conditions after a signal knockdown serves multiple critical purposes, with liability protection and
insurance claims being paramount. IMSA standards emphasize that accurate documentation creates a permanent record that can be used for
legal proceedings, insurance claims, warranty issues, and future maintenance planning. This documentation should include photographs,
measurements, witness information, and a detailed narrative of conditions.
Q12: Which of the following best describes the IMSA position on a technician performing work outside their level of
certification?
A. It is acceptable if the technician has received informal on-the-job training from a senior technician
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IMSA Traffic Signal Technician Level II (Latest 2026/2027 Update)
Questions and Verified Answers | Grade A | 100% Correct
Section 1: Safety, Standards, Professional Conduct
Q1: According to IMSA guidelines, what is the number one priority for a traffic signal technician working in the field?
A. Completing the assigned work order within the scheduled timeframe
B. Ensuring personal safety and the safety of the public at all times **[CORRECT]**
C. Following the supervisor's instructions without deviation
D. Minimizing traffic disruption during signal maintenance
Correct Answer: B
Rationale: IMSA establishes that safety is always the number one priority for every traffic signal technician. OSHA regulations and IMSA
professional standards both mandate that no task, regardless of urgency or supervisory direction, supersedes personal and public safety. This
principle must be applied in every work situation, from routine maintenance to emergency repairs.
Q2: A technician is performing maintenance on a signal cabinet located within an active work zone on a four-lane arterial.
Which OSHA standard most directly governs the setup and maintenance of the work zone?
A. OSHA 29 CFR 1926 Subpart C - General Safety and Health Provisions
B. OSHA 29 CFR 1926 Subpart G - Signs, Signals, and Barricades **[CORRECT]**
C. OSHA 29 CFR 1910 Subpart S - Electrical
D. OSHA 29 CFR 1926 Subpart V - Power Transmission and Distribution
Correct Answer: B
Rationale: OSHA 29 CFR 1926 Subpart G specifically addresses signs, signals, and barricades for construction and maintenance work zones.
The MUTCD Part 6 provides detailed temporary traffic control guidance that complements OSHA requirements. Technicians must be familiar
with both standards when establishing work zones for signal maintenance activities.
Q3: Under MUTCD guidelines, which three categories of safety must be addressed when establishing a temporary traffic
control zone for signal work?
A. Worker safety, motorist safety, and pedestrian safety **[CORRECT]**
B. Electrical safety, structural safety, and traffic safety
C. Personal protective equipment, vehicle speed, and visibility
D. Warning devices, barricades, and flagging procedures
Correct Answer: A
Rationale: The MUTCD identifies three essential safety categories in any temporary traffic control zone: worker safety, motorist safety, and
pedestrian safety. All three must be considered simultaneously when planning and executing signal maintenance operations. Neglecting any
single category creates an unacceptable safety risk that may result in citations, injuries, or fatalities.
Q4: A technician arrives at a signal intersection and discovers that the pre-established work zone has inadequate
channelization devices. The supervisor instructs the technician to proceed with the work anyway to avoid delays. What is the
correct course of action?
A. Proceed with the work as instructed since the supervisor has authority over the work zone
B. Refuse to work until the work zone is properly set up per MUTCD and OSHA standards **[CORRECT]**
C. Begin work but document the deficiency in the daily maintenance log for later correction
D. Request a different work assignment at a safer location while the work zone is corrected
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,IMSA Traffic Signal Technician Level II (Latest 2026/2027 Update) IMSA Level II Exam
Correct Answer: B
Rationale: A technician must never begin work in an improperly established work zone, regardless of supervisory direction. IMSA professional
conduct standards require technicians to exercise independent judgment regarding safety. OSHA grants workers the right to refuse unsafe work
without fear of retaliation, and the technician must communicate the deficiency clearly and wait for proper setup.
Q5: A Professional Engineer (PE) stamps and signs signal timing plans for a corridor upgrade project. According to IMSA
and NEMA standards, what specific responsibility does the PE hold regarding the upgrade?
A. The PE is responsible only for the initial design and bears no responsibility for field implementation or subsequent
modifications
B. The PE assumes professional responsibility for the adequacy, safety, and compliance of the signal design
**[CORRECT]**
C. The PE is responsible solely for ensuring the plans meet MUTCD minimum yellow and all-red timing intervals
D. The PE delegates all field responsibility to the installing technician upon plan approval
Correct Answer: B
Rationale: A Professional Engineer who stamps and signs signal plans assumes full professional responsibility for the adequacy, safety, and
regulatory compliance of the design. This includes conformance with MUTCD, NEMA, and applicable local standards. While field
technicians are responsible for correct installation, the PE seal certifies that the design itself meets all applicable engineering requirements and
standards.
Q6: What is the minimum Personal Protective Equipment (PPE) required for a technician performing above-ground signal
head maintenance from a bucket truck?
A. Hard hat, safety glasses, high-visibility vest, and fall protection harness **[CORRECT]**
B. Hard hat, safety glasses, and high-visibility vest only since the bucket provides fall protection
C. Hard hat, safety glasses, high-visibility vest, fall protection harness, and dielectric gloves rated for line voltage
D. Safety glasses, high-visibility vest, and steel-toe boots only when working from an aerial lift device
Correct Answer: A
Rationale: OSHA 29 CFR 1926.501 requires fall protection for any work at heights of six feet or above, which applies to bucket truck
operations. The standard PPE ensemble of hard hat, safety glasses, and high-visibility vest is combined with a fall protection harness per
IMSA and OSHA requirements. Dielectric gloves may be additionally required when working near energized electrical equipment.
Q7: A traffic signal technician observes a coworker bypassing the conflict monitor to force a signal phase during
troubleshooting. What professional obligation does the technician have under IMSA standards?
A. Report the incident to the supervisor immediately and document the unsafe practice **[CORRECT]**
B. Ignore the action since it is a common field troubleshooting shortcut
C. Assist the coworker only if the conflict monitor is bypassed for less than five minutes
D. Wait until the end of the shift to mention the concern to the coworker privately
Correct Answer: A
Rationale: IMSA professional conduct standards require technicians to report any safety violations immediately to a supervisor. Bypassing a
conflict monitor creates a potentially dangerous condition where conflicting green indications could occur. Per NEMA TS-2 standards, the
conflict monitor is a critical safety device that must never be bypassed. Documenting the incident ensures proper follow-up and corrective
action.
Q8: When working near high-voltage electrical components inside a signal cabinet, which OSHA standard governs the safe
work practices and requirements for electrical safety?
A. OSHA 29 CFR 1926 Subpart G - Signs, Signals, and Barricades
B. OSHA 29 CFR 1910.137 - Electrical Protective Equipment
C. OSHA 29 CFR 1910.269 - Electric Power Generation, Transmission, and Distribution **[CORRECT]**
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, IMSA Traffic Signal Technician Level II (Latest 2026/2027 Update) IMSA Level II Exam
D. OSHA 29 CFR 1910.147 - The Control of Hazardous Energy (Lockout/Tagout)
Correct Answer: C
Rationale: OSHA 29 CFR 1910.269 covers electric power generation, transmission, and distribution, which includes the high-voltage
components found in traffic signal cabinets such as 120VAC service entrances and switchgear. While lockout/tagout (1910.147) and electrical
PPE (1910.137) are related, 1910.269 is the primary standard governing safe work practices around high-voltage electrical equipment in
utility and signal applications.
Q9: A signal technician receives a work order to replace a damaged signal pole that was struck by a vehicle. Before
beginning the replacement, which document should be consulted first regarding the structural requirements for the new pole?
A. The original construction as-built drawings and approved standard details **[CORRECT]**
B. The MUTCD Section 4D on signal pole placement
C. The manufacturer specification sheet for the signal head weight only
D. The local utility company pole attachment agreement
Correct Answer: A
Rationale: Before replacing a damaged signal pole, the technician must consult the original construction as-built drawings and approved
standard details to ensure the replacement meets the same structural and foundation requirements. MUTCD addresses signal placement
location but not structural specifications. The pole must be installed to the same or current applicable standard to maintain structural integrity
and safety.
Q10: Under MUTCD standards, what is the minimum required clearance between the bottom of a signal head and the
pavement surface for a signal mounted on a mast arm over a travel lane?
A. 14 feet
B. 15 feet
C. 16 feet
D. 18 feet **[CORRECT]**
Correct Answer: D
Rationale: The MUTCD Section 4D.10 requires a minimum vertical clearance of 18 feet between the pavement surface and the bottom of a
signal head mounted over a travel lane. This clearance ensures safe passage for all legal-height vehicles. The 15-foot and 16-foot minimums
apply to other types of overhead sign or signal mounting configurations, but 18 feet is the specific requirement for signal heads over travel
lanes.
Q11: A technician is documenting field conditions at an intersection where a signal was knocked down by a truck. Which of
the following is the most important reason for thorough documentation?
A. To justify overtime pay for the emergency repair crew
B. To establish an accurate record for liability, insurance, and future reference **[CORRECT]**
C. To comply with the IMSA continuing education documentation requirement
D. To provide data for the annual traffic signal maintenance budget request
Correct Answer: B
Rationale: Thorough documentation of field conditions after a signal knockdown serves multiple critical purposes, with liability protection and
insurance claims being paramount. IMSA standards emphasize that accurate documentation creates a permanent record that can be used for
legal proceedings, insurance claims, warranty issues, and future maintenance planning. This documentation should include photographs,
measurements, witness information, and a detailed narrative of conditions.
Q12: Which of the following best describes the IMSA position on a technician performing work outside their level of
certification?
A. It is acceptable if the technician has received informal on-the-job training from a senior technician
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