Traffic Signal Installation and Maintenance, Exams of Traffic Control and Regulation

Download Traffic Signal Installation and Maintenance and more Exams Traffic Control and Regulation in PDF only on Docsity! IMSA level 1 certification 100% Verified Where are you when you install alternating flashing 12" red lights? - ANSWER At a railroad crossing. Who determins the the standards on traffic control devices and sets the requirements for uniformity? - ANSWER The Manual on uniform traffic control devices, (MUTCD). What is the the voltage that a traffic signal cabinet needs to run all its components? - ANSWER 120 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? - ANSWER A ramp meter on a ramp to a highway. What is a flashing signal along the road called? - ANSWER A flashing beacon. What is the definition of short term work zone as per the MUTCD? - ANSWER 1 hour or less What's OSHA? - ANSWER Occupational and safety health administration Can you get your level III certification and what are they? - ANSWER Yes, and it's for bench and field electrician I'm working near power lines where would I get my clearance from? - ANSWER CEC, NEC, NESC What are the three basic types of beacons? - ANSWER Stop sign beacon, warning beacon, and flashing beacon. What is the difference between concurrent and sequential phases? - ANSWER Concurrent 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? - ANSWER The dual ring phases are 2,4,6,8 What is the minimum number is heads for Main Street direction? - ANSWER Must have a minimum of 2 signal heads. 12" signal heads can be used without side a pole support heads on a ____ to a _____ intersection? - ANSWER Minimum 40 foot maximum 120 foot intersection. The a.d.a of 1990 ensures no discrimination against people who have disabilities? - ANSWER True. Are pull/ junction boxes only used where wire needs to change direction? - ANSWER No What is used to shade signal indications from the sun and allow it be seen from the lane intended? - ANSWER Visors. Signal heads that are _________ are to only be seen from a specific area on the road? - ANSWER Visibility limited. ____ assemblies provide the maximum support length to cross over a street? - ANSWER Truss type assemblies. You can use the same type signal head _______ on a mast arm and truss supports? - ANSWER Mounting hardware. Long life and low power consumption is a major advantage for _____ lamps? - ANSWER LEDs The ___ wire keeps signal heads from swinging in the wind? - ANSWER tether