Exam (elaborations)
ISMA Traffic Signal Technician II Questions and Answers 2024
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ISMA Traffic Signal Technician II
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ISMA Traffic Signal Technician IIThe traffic field technician is responsible for performing what types of maintenance on
signals? - answer Preventive and Emergency
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? -
answerDocumentation
What two instances are documentation required for a traffic signal field technician? -
answerRoutine maintenance
Emergency repair
The "word" public usually represents the following individuals (4): - answerRoad users
Area residents / Property owners
Elected and appointed officials
The media
Several means of public interaction are (3): - answerMail 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) - answerAlways 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? -
answerMicroprocessor
The microprocessor is programmed to recognize what? - answerInput requests from
vehicle detection systems
A microprocessor takes appropriate action to control intersection what? - answerTiming
A forerunner of the electronic controllers that we have today was the? - answerElectro-
mechanical controller
What year where solid state electronic controllers developed to replace the electro-
mechanical controllers? - answer1970's
What two improvements differentiated electronic controllers from electro-mechanical
controllers? - answerMore 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? - answerNEMA TS-1
The NEMA TS-1 has three connectors which where known as: - answerA,B, and C
connectors
NEMA TS-1 had how many connectors? - answerThree
The NEMA TS-1 defined every pin for each connector as either what two connection
types? - answerInput or Output
NEMA also allowed manufactures to add an additional feature on the fourth connector.
What was this connector know as? - answerD connector
What was the D connector commonly used for? - answerCommunications
Pre-emption
Other special features
What three agencies joined together to help develop the 170 controller? -
answerCalifornia DOT
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