IMSA Traffic Signal Technician 2 Exam
Questions and Answers PDF – Study
Guide & Practice Test 2026/2027 Release
Update (Verified Elaborations)|Already
graded A+
1. Describe the significance of Garrett Morgan's contribution to traffic
signal development and how it impacted modern traffic systems
o Developed a three-position traffic signal adding a 'warning' phase to
reduce collisions.
2. What are the two key purposes of traffic signal systems?
o Traffic regulation and flow optimization
3. OSHA stands for what?
o Occupational Safety and Health Administration
4. SDS sheets provide what type of information?
o Safety data sheets for chemicals
5. Which of the following is NOT considered part of the PPE for a Traffic
Signal Technician?
o Sneakers
6. What is the maximum AC voltage that Class 0 electrical gloves can
handle?
o 1,000 volts
7. What is the minimum OSHA-mandated clearance from overhead power
lines?
o 10 feet
8. Which organization is responsible for publishing the National Electrical
Code (NEC)
o NFPA
9. In Ohm's Law, what does the formula $E = I \times R$ represent?
o Voltage = Current x Resistance
1
,10.Which of the following is NOT a type of traffic signal warrant as per
MUTCD
o Vehicle Age
11.What is the primary purpose of "fully-actuated" traffic signal?
o To respond to real-time traffic demands
12.How often is it recommended for a Conflict Monitor Unit (CMU) to be
tested and recertified?
o Every Year
13.In electrical terms, what does 'current' refer to?
o Water Flow
14.The NEC handbook is published by?
o The National Fire Protection Association, which is responsible for
developing and updating the NEC
15.Which document determines the hierarchy of utilities on a utility pole?
o NESC
16.Part four of the __________ determines all the guidance for traffic
signals
o MUTCD
17.What does OSHA stand for?
o Occupational Safety and Health Administration
18.Who published the NEC?
o NFPA
19.Legal Liability : Negligence
o Failure to exercise a reasonable standard of care expected under the
circumstances, leading to an increased risk of accidents and harms.
20.Tort Liability
o This would be a non-criminal act or failure to act by one party that
leads to harm or damages to another party
21.What would be failure to use exact care in one's actions?
o Negligence
22.A technician was sent out to an intersection to replace a broken traffic
signal head. When he arrived on the scene, he realizes he does not have
the proper hardware to reinstall the fixture. He only secures the fixture
with two screws and leaves for the evening and forgets to come back to
2
, complete the repair. The fixture falls on a car and causes a serious
accident with injuries. This is a what?
o Tort Liability
23.Electrical safety gloves
o Are classified by the level of voltage protection they provide and are
subject to strict standards. In the United States, these standards are set
by the American Society for Testing and Materials (ASTM)
24.OSHA mandates that you MUST maintain a minimum of ___ foot of
clearance from overhead power lines?
o 10 feet
25.Look for _____ on poles as overhead utilities may transition to become
underground utilities
o Risers
26.Locate Color Red
o Electrical Power Lines
27.Locate Color yellow
o Natural Gas, Steam, Petroleum, oil lines
28.Locate Color Blue
o Portable water lines
29.Locate Color Green
o Sanitary sewer and Storm drain lines
30.Locate Color orange
o Communication lines - phones, cable tv, fiber optic
31.Locate color pink
o Temporary surveying markings
32.Locate Color purple
o Chilled water, reclaimed water, irrigation and slurry lines
33.Locate color white
o Proposed excavation
34.Locate color Not specified
o Military and Private underground Facilities
35.Which formula is part of Ohm's Law?
o $E = I \times R$
36.OSHA mandates that you MUST maintain a minimum of ____ feet
clearance from overhead power lines?
3
Questions and Answers PDF – Study
Guide & Practice Test 2026/2027 Release
Update (Verified Elaborations)|Already
graded A+
1. Describe the significance of Garrett Morgan's contribution to traffic
signal development and how it impacted modern traffic systems
o Developed a three-position traffic signal adding a 'warning' phase to
reduce collisions.
2. What are the two key purposes of traffic signal systems?
o Traffic regulation and flow optimization
3. OSHA stands for what?
o Occupational Safety and Health Administration
4. SDS sheets provide what type of information?
o Safety data sheets for chemicals
5. Which of the following is NOT considered part of the PPE for a Traffic
Signal Technician?
o Sneakers
6. What is the maximum AC voltage that Class 0 electrical gloves can
handle?
o 1,000 volts
7. What is the minimum OSHA-mandated clearance from overhead power
lines?
o 10 feet
8. Which organization is responsible for publishing the National Electrical
Code (NEC)
o NFPA
9. In Ohm's Law, what does the formula $E = I \times R$ represent?
o Voltage = Current x Resistance
1
,10.Which of the following is NOT a type of traffic signal warrant as per
MUTCD
o Vehicle Age
11.What is the primary purpose of "fully-actuated" traffic signal?
o To respond to real-time traffic demands
12.How often is it recommended for a Conflict Monitor Unit (CMU) to be
tested and recertified?
o Every Year
13.In electrical terms, what does 'current' refer to?
o Water Flow
14.The NEC handbook is published by?
o The National Fire Protection Association, which is responsible for
developing and updating the NEC
15.Which document determines the hierarchy of utilities on a utility pole?
o NESC
16.Part four of the __________ determines all the guidance for traffic
signals
o MUTCD
17.What does OSHA stand for?
o Occupational Safety and Health Administration
18.Who published the NEC?
o NFPA
19.Legal Liability : Negligence
o Failure to exercise a reasonable standard of care expected under the
circumstances, leading to an increased risk of accidents and harms.
20.Tort Liability
o This would be a non-criminal act or failure to act by one party that
leads to harm or damages to another party
21.What would be failure to use exact care in one's actions?
o Negligence
22.A technician was sent out to an intersection to replace a broken traffic
signal head. When he arrived on the scene, he realizes he does not have
the proper hardware to reinstall the fixture. He only secures the fixture
with two screws and leaves for the evening and forgets to come back to
2
, complete the repair. The fixture falls on a car and causes a serious
accident with injuries. This is a what?
o Tort Liability
23.Electrical safety gloves
o Are classified by the level of voltage protection they provide and are
subject to strict standards. In the United States, these standards are set
by the American Society for Testing and Materials (ASTM)
24.OSHA mandates that you MUST maintain a minimum of ___ foot of
clearance from overhead power lines?
o 10 feet
25.Look for _____ on poles as overhead utilities may transition to become
underground utilities
o Risers
26.Locate Color Red
o Electrical Power Lines
27.Locate Color yellow
o Natural Gas, Steam, Petroleum, oil lines
28.Locate Color Blue
o Portable water lines
29.Locate Color Green
o Sanitary sewer and Storm drain lines
30.Locate Color orange
o Communication lines - phones, cable tv, fiber optic
31.Locate color pink
o Temporary surveying markings
32.Locate Color purple
o Chilled water, reclaimed water, irrigation and slurry lines
33.Locate color white
o Proposed excavation
34.Locate color Not specified
o Military and Private underground Facilities
35.Which formula is part of Ohm's Law?
o $E = I \times R$
36.OSHA mandates that you MUST maintain a minimum of ____ feet
clearance from overhead power lines?
3
