IMSA Traffic Signal Technician Level 1 | Questions and
Verified Answers 100% Correct | Grade A+ |
Hazardous underground utilities:
Works must be aware of what ? ACCURATE Of the location of utilities that cannot be
readily seen, including what type they are and the potential for danger that they
possess.
"Accessible pedestrian signals usually include a ? ACCURATE Signal device that feature
audible and/or vibrio tactile indications of the walk interval
"Full visors "are used to ? ACCURATE Encircle the entires signal lens and are typically
used in applications where signal displays need to be shielded because signal displays
facing in multiple directions have been combined in one assembly
"Monotube supports are typically used where ? ACCURATE Very large intersections
where mast arms cannot reach out far enough to provide adequate coverage of the
intersection.
"Pedestrian detection " provides the means to inform the ? ACCURATE Traffic
signal controller of the presence of a person desiring to cross a leg of the intersection
"Span wire supports are made up of ? ACCURATE Two or more poles that support one
or more wires to which traffic signal heads and their associated electrical cables are
attached
"Strain poles " are manufactured specifically to handle what ? ACCURATE The strain
of the load experienced when the span wires and traffic signals are attached to them.
,"Trusses are used at ? ACCURATE Extremely large intersections that cannot be
reasonably serviced with either mast arms or span wire assemblies and in some cases
where even a Monotube support is not feasible or desired
"Tunnel visors " are used for ? ACCURATE Applications where it is desirable to prevent
the signal indications from being seen by drivers on a conflicting approach
2 foot by 6 foot loop might require how many turns? ACCURATE 5 turns
6foot by 20 foot loop might require how many turns? ACCURATE 3 turns
6foot by 60 foot loop might require how many turns? ACCURATE Require 2 turns
120 VAC (Volts Alternating Current) is capable of what ? ACCURATE Serious or fatal
injury
A "mast arms signal supports" is an assembly that typically includes what? ACCURATE
A concrete foundation, a steel upright pole and a steel" arms that is attached to the
upright pole.
A new option for mid block pedestrian signals ? ACCURATE "Pedestrian hybrid beacon"
sometimes called high intensity actuated crosswalk or hawk
A system of lane use control signals must be coordinated with each other because
why? ACCURATE So that they are operated uniformity and consistently
Americans with disabilities act (ADA ) has developed Guidelines and standards for
pedestrian signals or crossing features and those are ? ACCURATE pedestrian signals
or crossing features that provide persons with disabilities additional guidance or
traversable access to the pedestrian sign detection device so that they can successfully
execute the crossing
, An intersection that has four through phases and four left turn faces is what ?
ACCURATE Said to be in "eight phase intersection"
Back plates are typically made of ? ACCURATE Aluminum or plastic material as the
traffic signal assembly
Beacons shall be installed and used only at? ACCURATE And intersections to control
two or more directions of travel
Contributory negligence is ? ACCURATE To conduct which falls below the standard of
care that a person is legally required to exercise for his own safety and this failure is
contributing cause to injury or damage that he suffered
Doppler microwave and FMCW have what in common ? ACCURATE They can detect
volume, occupancy classification, and speed
Doppler microwave detector can only detect? ACCURATE moving vehicles traveling
faster than a minimum sopes.
Doppler microwave detectors transmit what ? ACCURATE Low energy microwave
radiation at a detection zone.
During times of the day when mainline Volumes are light the ramp meter signals are
usually turned on or off or neutral ? ACCURATE Turn off ( dark mode )
Each beacon Signal face consist of one or more signal sections of a standard traffic
signal face with what. ? ACCURATE (CIRCULAR YELLOW & CIRCULAR RED )
Single indications in each single face
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