Exam (elaborations)
Traffic Signal Field Technician Questions and Answers
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Traffic Signal Field Technician
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Traffic Signal Field TechnicianWhat organization has established requirements for PPE in certain working situations? -
answerOSHA/CCOHS
Which of the following certifications must be attained first? - answerTraffic signal Tech.
Level 1
Upgrades or revisions to the traffic signal are the responsibility of whom? -
answerprofessional engineer
What is NOT an example of documentation that can limit the liability of the technician
and/or agency? - answerNTCIP
What is the single most important focus that the field technician should have? -
answersafety
For many agencies, what is the least amount of technicians required to perform work
with an aerial lift? - answer2
What is NOT true when it comes to dealing with the public? - answerIf you are unsure of
the answer, give them the incorrect information so you can keep working
What is NOT a function of a modern traffic signal controller? - answerProcessing when
a vehicle has run a red light and informing the police
What was a major drawback with the first traffic signal controllers? - answerMaintaining
the mechanical parts
When did standardization of controllers become established in the United States and
Canada? - answer1970s
What was limited by the fourth proprietary connector used with the NEMA TS-1? -
answerthe type of replacement model
Which type of controller utilizes a high speed data channel between all major equipment
to maximize the functionality and expandability of the controller assembly? -
answerNEMA TS-2 Type 1
What greatly reduced wire connections in the controller cabinet with the use of the RS-
485 with the SDLC? - answerBus interface unit
, What was the intent of developing the ATC specifications? - answerTo have an open
architecture hardware and software platform for ITS application
Which agency developed a communications protocol for ITS systems, field devices and
software so basic functionality should be interchangeable regardless of the
manufacturer? - answerNTCIP
Before beginning work that requires workers or vehicles to be in or over the roadway,
what should traffic signal field technicians ensure is in place? - answerTemporary traffic
control (TTC)
What is NOT a common type of truck used for traffic signal maintenance? -
answerdump truck
Traffic signals can be attached to Mast Arms using which of the following?
- disconnect hangers attached to the mast arm which suspend the signal
- bracket that is rigidly mounted to the mast arm with a clamping device
- pipe mounts that screw into nipples installed directly into the mast arm
- ALL of the above - answerall of the above
Traffic signal supports are NOT used to display the following items: -
answeradvertisements
Methods of signal supports include what? - answerTruss supports, monotube supports,
pedestal supports
What is NOT an advantage of attaching signals to mast arms with brackets? -
answerallow for the signal to "give" in the wind
What are the 2 basic types of booms used on bucket trucks? - answerarticulating and
extensible
Traffic signals are not always where an aerial lift can be positioned properly. What
should you always do when operating aerial lifts? - answerUse the stabilizers to provide
additional support when the lift is in operation
Check for proper operating DC voltage, check for the absence of red on a phase that
does not have green, yellow, or walk, check on a simultaneous are functions that are
provided by both - - answerCMU and MMU
What is the purpose of relays in a traffic signal system? - answerto transfer the outputs
from one component to another
What device minimizes the amount of voltage that might be available at a pedestrian
push button should the button malfunction? - answerIsolator
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