IMSA TRAFFIC SIGNAL TECHNICIAN LEVEL II
CERTIFICATION EVALUATION TEST PAPER 2026
COMPLETE STUDY QUESTIONS WITH
CORRECT ANSWERS
◉ The single most important focus for the traffic signal field
technician is? Answer: Safety
◉ Three main categories of safety a traffic signal technician is
responsible for? Answer: Safety of motorist and pedestrians
His or her own personal safety
Safety of public and personal property
◉ Traffic signal field technicians perform several maintenance and
repair functions above the ground and roadway typically using what
two vehicles? Answer: Bucket Truck
Aerial lift (platform truck)
◉ While using a bucket truck or aerial lift what implement provides
proper protection for the user? Answer: Protective Harness
,◉ What responsibilities (liability) does a Traffic signal technician
have while involved in repair, testing or maintenance? Answer: Legal
liability
Dealing with the public
◉ It is imperative that the traffic signal field technician maintain
comprehensive what of all the steps taken during repair and
maintenance of traffic signals? Answer: Documentation
◉ What two instances are documentation required for a traffic
signal field technician? Answer: Routine maintenance
Emergency repair
◉ The "word" public usually represents the following individuals
(4): Answer: Road users
Area residents / Property owners
Elected and appointed officials
The media
◉ Several means of public interaction are (3): Answer: Mail or email
Telephone contact
Face to face meetings
,◉ When dealing with the public, keep in mind that the routines of
public users may be disrupted for periods of time during
construction. How should a traffic signal field technician interact
with the public? (5) Answer: Always be polite
Be confident when speaking
Communicate clearly in understandable terminology
Don't argue or threaten
Don't provide information if you are uncertain of its accuracy.
◉ Traffic signal controller units of todays traffic systems are
controlled by what? Answer: Microprocessor
◉ The microprocessor is programmed to recognize what? Answer:
Input requests from vehicle detection systems
◉ A microprocessor takes appropriate action to control intersection
what? Answer: Timing
◉ A forerunner of the electronic controllers that we have today was
the? Answer: Electro-mechanical controller
◉ What year where solid state electronic controllers developed to
replace the electro-mechanical controllers? Answer: 1970's
, ◉ What two improvements differentiated electronic controllers
from electro-mechanical controllers? Answer: More dependable
Added many more features
◉ What was the standardization that primarily established a pin
configuration in the controller and defined a function for every pin?
Answer: NEMA TS-1
◉ The NEMA TS-1 has three connectors which where known as:
Answer: A,B, and C connectors
◉ NEMA TS-1 had how many connectors? Answer: Three
◉ The NEMA TS-1 defined every pin for each connector as either
what two connection types? Answer: Input or Output
◉ NEMA also allowed manufactures to add an additional feature on
the fourth connector. What was this connector know as? Answer: D
connector
◉ What was the D connector commonly used for? Answer:
Communications
Pre-emption
Other special features
CERTIFICATION EVALUATION TEST PAPER 2026
COMPLETE STUDY QUESTIONS WITH
CORRECT ANSWERS
◉ The single most important focus for the traffic signal field
technician is? Answer: Safety
◉ Three main categories of safety a traffic signal technician is
responsible for? Answer: Safety of motorist and pedestrians
His or her own personal safety
Safety of public and personal property
◉ Traffic signal field technicians perform several maintenance and
repair functions above the ground and roadway typically using what
two vehicles? Answer: Bucket Truck
Aerial lift (platform truck)
◉ While using a bucket truck or aerial lift what implement provides
proper protection for the user? Answer: Protective Harness
,◉ What responsibilities (liability) does a Traffic signal technician
have while involved in repair, testing or maintenance? Answer: Legal
liability
Dealing with the public
◉ It is imperative that the traffic signal field technician maintain
comprehensive what of all the steps taken during repair and
maintenance of traffic signals? Answer: Documentation
◉ What two instances are documentation required for a traffic
signal field technician? Answer: Routine maintenance
Emergency repair
◉ The "word" public usually represents the following individuals
(4): Answer: Road users
Area residents / Property owners
Elected and appointed officials
The media
◉ Several means of public interaction are (3): Answer: Mail or email
Telephone contact
Face to face meetings
,◉ When dealing with the public, keep in mind that the routines of
public users may be disrupted for periods of time during
construction. How should a traffic signal field technician interact
with the public? (5) Answer: Always be polite
Be confident when speaking
Communicate clearly in understandable terminology
Don't argue or threaten
Don't provide information if you are uncertain of its accuracy.
◉ Traffic signal controller units of todays traffic systems are
controlled by what? Answer: Microprocessor
◉ The microprocessor is programmed to recognize what? Answer:
Input requests from vehicle detection systems
◉ A microprocessor takes appropriate action to control intersection
what? Answer: Timing
◉ A forerunner of the electronic controllers that we have today was
the? Answer: Electro-mechanical controller
◉ What year where solid state electronic controllers developed to
replace the electro-mechanical controllers? Answer: 1970's
, ◉ What two improvements differentiated electronic controllers
from electro-mechanical controllers? Answer: More dependable
Added many more features
◉ What was the standardization that primarily established a pin
configuration in the controller and defined a function for every pin?
Answer: NEMA TS-1
◉ The NEMA TS-1 has three connectors which where known as:
Answer: A,B, and C connectors
◉ NEMA TS-1 had how many connectors? Answer: Three
◉ The NEMA TS-1 defined every pin for each connector as either
what two connection types? Answer: Input or Output
◉ NEMA also allowed manufactures to add an additional feature on
the fourth connector. What was this connector know as? Answer: D
connector
◉ What was the D connector commonly used for? Answer:
Communications
Pre-emption
Other special features
