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IMSA 1 questions and answers verified 2024
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IMSA 1 questions and answers verified 2024
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IMSA 1Which are the two Traffic Signal Level 3 - correct answer ✔Bench
Electrical (Field)
Personal safety is a matter of - correct answer ✔Regulation and common
sense
The voltage that the signal operate on is... - correct answer ✔120 VAC
NEC - correct answer ✔The national electrical code
NESC - correct answer ✔National electrical safety code
Short duration maintenance or construction operation are defined in the
MUTCD - correct answer ✔Work that occupies an area for an hour or less at
any time.
MUTCD - correct answer ✔The manual on uniform traffic control devices
establishes the purposes of traffic control devices and the requirements for
uniform traffic control devices throughout the united states.
FHWA - correct answer ✔The federal highway administration is responsible
for developing and publishing the MUTCD in the united states
The MUTCD allows states to develop their own manual on uniform traffic
control devices if... - correct answer ✔The manual is in sufficient
conformance to the Federal MUTCD.
, The detailed criteria for determining if the installation of a traffic signal should
be considered are found in the... - correct answer ✔MUTCD ( AKA The use
of warrants)
HAWK - correct answer ✔Pedestrian hybrid beacon sometimes called High
Intensity Actuated Crosswalk.
Although most Signalized grade crossing are controlled by railroad flashing
light signals with... - correct answer ✔Two circular red indications that flash
in an alternating manner
Ramp metering signals. - correct answer ✔The signals placed on the
entrance of a ramp to a roadway and usually have two sections: a circular
green indication to allow a single vehicle to proceed at a time and circular red
indication to stop all approaching vehicles.
Other types of beacons include... - correct answer ✔warning beacon
(flashing circular yellow indications) and stop beacons (flashing circular red
indications)
Traffic signal phase - correct answer ✔Phases are numbered 1 thru 8.
Phase 2 and 6 are most commonly assgined to major street trhough
movement
Interval - correct answer ✔Is the amount of time that a particular indication is
given during a phase
Rings - correct answer ✔Each ring of a traffic signal controller is a series of
conflicting phases that occur in an established order but can never
simultaneously with each other.
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