IMSA level 1 certification Questions
with complete solution 2025
Where are you when you install alternating flashing 12" red lights? - correct
answer At a railroad crossing.
Who determins the the standards on traffic control devices and sets the
requirements for uniformity? - correct 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? - correct 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? - correct answer A ramp meter on a
ramp to a highway.
What is a flashing signal along the road called? - correct answer A flashing
beacon.
What is the definition of short term work zone as per the MUTCD? - correct
answer 1 hour or less
What's OSHA? - correct answer Occupational and safety health administration
Can you get your level III certification and what are they? - correct answer
Yes, and it's for bench and field electrician
, I'm working near power lines where would I get my clearance from? - correct
answer CEC, NEC, NESC
What are the three basic types of beacons? - correct answer Stop sign
beacon, warning beacon, and flashing beacon.
What is the difference between concurrent and sequential phases? - correct
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? - correct answer The 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? - correct answer Time based coordination,
and cycle length.
Explain the white walking man, the flashing orange hand on a ped head and
how is this time figured? - correct answer The white walking man is the ped
head walk interval, and the ped change clearance interval is the flashing
orange hand.
What makes up the green interval? - correct answer 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 -
correct answer Phases 2,6 are called Main Street, and 4,8 are called side
street.
Name the three traffic signal systems? - correct answer Closed loop, central
computer, hybrid systems.
with complete solution 2025
Where are you when you install alternating flashing 12" red lights? - correct
answer At a railroad crossing.
Who determins the the standards on traffic control devices and sets the
requirements for uniformity? - correct 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? - correct 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? - correct answer A ramp meter on a
ramp to a highway.
What is a flashing signal along the road called? - correct answer A flashing
beacon.
What is the definition of short term work zone as per the MUTCD? - correct
answer 1 hour or less
What's OSHA? - correct answer Occupational and safety health administration
Can you get your level III certification and what are they? - correct answer
Yes, and it's for bench and field electrician
, I'm working near power lines where would I get my clearance from? - correct
answer CEC, NEC, NESC
What are the three basic types of beacons? - correct answer Stop sign
beacon, warning beacon, and flashing beacon.
What is the difference between concurrent and sequential phases? - correct
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? - correct answer The 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? - correct answer Time based coordination,
and cycle length.
Explain the white walking man, the flashing orange hand on a ped head and
how is this time figured? - correct answer The white walking man is the ped
head walk interval, and the ped change clearance interval is the flashing
orange hand.
What makes up the green interval? - correct answer 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 -
correct answer Phases 2,6 are called Main Street, and 4,8 are called side
street.
Name the three traffic signal systems? - correct answer Closed loop, central
computer, hybrid systems.
