IMSA level 1 Certification Prep-Questions with Complete Solutions |Latest 2024/2025

IMSA level 1 Certification Prep- _;- _;- _;- _;-




Questions with Complete Solutions. _;- _;- _;-




What happens after the green interval and before the red
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interval, and how is this change interval figured?
_;- _;-Yellow _;- _;- _;- _;- _;- _;-_;- _;- _;-



interval, and is figured by using the approach speed of the
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traffic.


Name the three traffic signal systems?
_;- _;- _;- _;- _;- _;-_;- _;- Closed loop, central _;- _;- _;-



computer, hybrid systems. _;- _;-




What's OSHA? _;- _;-_;- _;- Occupational and safety health administration _;- _;- _;- _;-




Can you get your level III certification and what are they?
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Yes, and it's for bench and field electrician
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I'm working near power lines where would I get my clearance
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from? CEC, NEC, NESC
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What are the three basic types of beacons?
_;- _;- _;- _;- _;- _;- _;- _;-_;- _;- Stop sign _;- _;-



beacon, warning beacon, and flashing beacon.
_;- _;- _;- _;- _;-

, What is the difference between concurrent and sequential
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phases? Concurrent phases, phases that run together.
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Sequential phases, are phases that run one at a time._;- _;- _;- _;- _;- _;- _;- _;- _;-




I have a dual ring controller and all my through phases are even,
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what do I mean? _;- The dual ring phases are 2,4,6,8
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What is the cheapest way to coordinate a corridor of signals?
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What needs to stay the same throughout the day?
_;- Time _;- _;- _;- _;- _;- _;- _;- _;-_;- _;- _;-



based coordination, and cycle length.
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Explain the white walking man, the flashing orange hand on a
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ped head and how is this time figured?
_;- The white walking
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man is the ped head walk interval, and the ped change
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clearance interval is the flashing orange hand._;- _;- _;- _;- _;- _;-




What makes up the green interval?
_;- Initial green time, _;- _;- _;- _;- _;-_;- _;- _;- _;- _;-



passage/extension/gap time, and max green time. _;- _;- _;- _;- _;-




At most intersections what are phases 2,6 called, and phases 4,8
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



called Phases 2,6 are called Main Street, and 4,8 are called
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side street._;-