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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 - ACCURATE CMU and MMU
What organization has established requirements for PPE in certain working situations?
ACCURATE OSHA/CCOHS
Which of the following certifications must be attained first? ACCURATE Trafficsignal
Tech. Level 1
Upgrades or revisions to the traffic signal are the responsibility of whom? ACCURATE
professional engineer
What is NOT an example of documentation that can limit the liability of the technician
and/or agency? ACCURATE NTCIP
What is the single most important focus that the field technician should have?
ACCURATE safety
For many agencies, what is the least amount of technicians required to perform work
with an aerial lift? ACCURATE 2
What is NOT true when it comes to dealing with the public? ACCURATE If 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? ACCURATEProcessing
when a vehicle has run a red light and informing the police
, What was a major drawback with the first traffic signal controllers? ACCURATE
Maintaining the mechanical parts
When did standardization of controllers become established in the United States and
Canada? ACCURATE 1970s
What was limited by the fourth proprietary connector used with the NEMA TS-1?
ACCURATE the 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? ACCURATE
NEMA TS-2 Type 1
What greatly reduced wire connections in the controller cabinet with the use of the RS-
485 with the SDLC? ACCURATE Bus interface unit
What was the intent of developing the ATC specifications? ACCURATE To 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? ACCURATE NTCIP
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? ACCURATE Temporary
traffic control (TTC)
What is NOT a common type of truck used for traffic signal maintenance? ACCURATE
dump truck