2024/2025
Where are you when you install alternating flashing 12" red lights? - ANSWERSAt a
railroad crossing.
Who determins the the standards on traffic control devices and sets the requirements
for uniformity? - ANSWERSThe Manual on uniform traffic control devices, (MUTCD).
What is the the voltage that a traffic signal cabinet needs to run all its components? -
ANSWERS120 volts AC
Where are you when you come across a signal that has a ped pole on each side of the
road, each having a 3 section signal on top followed with a 2 section mounted directly
under neath? - ANSWERSA ramp meter on a ramp to a highway.
What is a flashing signal along the road called? - ANSWERSA flashing beacon.
What is the definition of short term work zone as per the MUTCD? - ANSWERS1 hour
or less
What's OSHA? - ANSWERSOccupational and safety health administration
Can you get your level III certification and what are they? - ANSWERSYes, and it's for
bench and field electrician
I'm working near power lines where would I get my clearance from? - ANSWERSCEC,
NEC, NESC
What are the three basic types of beacons? - ANSWERSStop sign beacon, warning
beacon, and flashing beacon.
What is the difference between concurrent and sequential phases? -
ANSWERSConcurrent phases, phases that run together. Sequential phases, are
phases that run one at a time.
I have a dual ring controller and all my through phases are even, what do I mean? -
ANSWERSThe dual ring phases are 2,4,6,8
What is the cheapest way to coordinate a corridor of signals? What needs to stay the
same throughout the day? - ANSWERSTime based coordination, and cycle length.