ISMA Traffic Signal Technician II Questions And Correct Answers Graded A ++
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ISMA Traffic Signal Technician
ISMA Traffic Signal Technician II Questions And Correct Answers Graded A ++
The traffic field technician is responsible for performing what types of maintenance on signals?
Preventive and Emergency
The single most important focus for the traffic signal field technician is?
Safety
Three main ...
ISMA Traffic Signal Technician II Questions And
Correct Answers Graded A ++
The traffic field technician is responsible for performing what types of
maintenance on signals?
Preventive and Emergency
The single most important focus for the traffic signal field technician is?
Safety
Three main categories of safety a traffic signal technician is responsible for?
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?
Bucket Truck
Aerial lift (platform truck)
While using a bucket truck or aerial lift what implement provides proper
protection for the user?
Protective Harness
What responsibilities (liability) does a Traffic signal technician have while
involved in repair, testing or maintenance?
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?
Documentation
,What two instances are documentation required for a traffic signal field
technician?
Routine maintenance
Emergency repair
The "word" public usually represents the following individuals (4):
Road users
Area residents / Property owners
Elected and appointed officials
The media
Several means of public interaction are (3):
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)
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?
Microprocessor
The microprocessor is programmed to recognize what?
Input requests from vehicle detection systems
A microprocessor takes appropriate action to control intersection what?
Timing
A forerunner of the electronic controllers that we have today was the?
Electro-mechanical controller
What year where solid state electronic controllers developed to replace the
electro-mechanical controllers?
, 1970's
What two improvements differentiated electronic controllers from electro-
mechanical controllers?
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?
NEMA TS-1
The NEMA TS-1 has three connectors which where known as:
A,B, and C connectors
NEMA TS-1 had how many connectors?
Three
The NEMA TS-1 defined every pin for each connector as either what two
connection types?
Input or Output
NEMA also allowed manufactures to add an additional feature on the fourth
connector. What was this connector know as?
D connector
What was the D connector commonly used for?
Communications
Pre-emption
Other special features
What three agencies joined together to help develop the 170 controller?
California DOT
City of Los Angeles California
New York State DOT
What controller is an open-architecture based general purpose microcomputer
for traffic control?
Model 170 controller
What two specifications does the model 170 controller require?
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