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ISMA TRAFFIC SIGNAL TECHNICIAN I ACTUAL EXAM VERSION A NEWEST 2025/2026 COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS|ALREADY GRADED A+
Traffic volumes that show insufficient gaps exist on the major street to allow minor street traffic to enter
or cross an intersection.
Road users at an intersection submitting a sufficient number of requests for installation of a signal based
on local requirements.
Pedestrian volumes indicate a need in order to allow safe crossing of a road
Historical crash data shows that a signal would potentially improve safety conditions - ANSWER-Road
users at an intersection submitting a sufficient number of requests for installation of a signal based on
local requirements
a plans preparation manual indicates information regarding: - ANSWER-Amount of detail, information,
and proper format for traffic signal plans.
EEO participation requires the contractor to: - ANSWER-maintain a percentage of minority workers on
the project.
What is the purpose of traffic signal inspection? - ANSWER-to provide a record of construction, to
document results of tests, to verify installation meets the requirements of the plans and contract
documents.
in case of the perceived need for a traffic signal to allow pedestrians to cross a roadway, pedestrian
volume counts are typically performed for what time duration? - ANSWER-8 hours
which of the following does a traffic signal designer have to take into consideration when designing a
signal? - ANSWER-signal phasing, utilities, cost
Which of the following ar considerations that should be taken into account when designing a new traffic
signal? - ANSWER-types of preemption required, coordination with nearby traffic signals, traffic
characteristics at the location.
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Multimeters are used to check - ANSWER-resistance, voltage, current
What devise is used to measure the resistance or breakdown strength of conductor insulation: -
ANSWER-megohmmeter
What device dos a technician use to troubleshoot existing loops already installed in the field: - ANSWER-
loop analyzer
Resistance as expressed by Ohm's law is - ANSWER-R=E/I
Ohm's law is useful in the design and troubleshooting of circuits and describes the mathematical
relationship of the following: - ANSWER-voltage, current, resistance.
The typical traffic signal controller assembly is powered by what type of electrical current: - ANSWER-120
volts of AC
The two types of traffic signal maintenance that are typically performed are: - ANSWER-Emergency and
scheduled maintenance
an example of emergency maintenance is: - ANSWER-power outages/surges due to electrical storm
A good nice step procedure for troubleshooting is: - ANSWER-observe, identify, determine, correct,
observe again
Which of the following is NOT typically a maintenance concern for traffic signal installations: - ANSWER-
Lubrication
A Key component of documentation is: - ANSWER-Developing written procedures for documentation,
developing checklists, developing field reports
ISMA TRAFFIC SIGNAL TECHNICIAN I ACTUAL EXAM VERSION A NEWEST 2025/2026 COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS|ALREADY GRADED A+
Traffic volumes that show insufficient gaps exist on the major street to allow minor street traffic to enter
or cross an intersection.
Road users at an intersection submitting a sufficient number of requests for installation of a signal based
on local requirements.
Pedestrian volumes indicate a need in order to allow safe crossing of a road
Historical crash data shows that a signal would potentially improve safety conditions - ANSWER-Road
users at an intersection submitting a sufficient number of requests for installation of a signal based on
local requirements
a plans preparation manual indicates information regarding: - ANSWER-Amount of detail, information,
and proper format for traffic signal plans.
EEO participation requires the contractor to: - ANSWER-maintain a percentage of minority workers on
the project.
What is the purpose of traffic signal inspection? - ANSWER-to provide a record of construction, to
document results of tests, to verify installation meets the requirements of the plans and contract
documents.
in case of the perceived need for a traffic signal to allow pedestrians to cross a roadway, pedestrian
volume counts are typically performed for what time duration? - ANSWER-8 hours
which of the following does a traffic signal designer have to take into consideration when designing a
signal? - ANSWER-signal phasing, utilities, cost
Which of the following ar considerations that should be taken into account when designing a new traffic
signal? - ANSWER-types of preemption required, coordination with nearby traffic signals, traffic
characteristics at the location.
, 2|Page
Multimeters are used to check - ANSWER-resistance, voltage, current
What devise is used to measure the resistance or breakdown strength of conductor insulation: -
ANSWER-megohmmeter
What device dos a technician use to troubleshoot existing loops already installed in the field: - ANSWER-
loop analyzer
Resistance as expressed by Ohm's law is - ANSWER-R=E/I
Ohm's law is useful in the design and troubleshooting of circuits and describes the mathematical
relationship of the following: - ANSWER-voltage, current, resistance.
The typical traffic signal controller assembly is powered by what type of electrical current: - ANSWER-120
volts of AC
The two types of traffic signal maintenance that are typically performed are: - ANSWER-Emergency and
scheduled maintenance
an example of emergency maintenance is: - ANSWER-power outages/surges due to electrical storm
A good nice step procedure for troubleshooting is: - ANSWER-observe, identify, determine, correct,
observe again
Which of the following is NOT typically a maintenance concern for traffic signal installations: - ANSWER-
Lubrication
A Key component of documentation is: - ANSWER-Developing written procedures for documentation,
developing checklists, developing field reports
