IMSA Signal Technician Level 1 |
Questions and Verified Answers Rated
A+ | Latest 2025/2026
What is the purpose of traffic signal inspection? - Correct Answer - -To
provide a record of construction
-To document results of tests
-To verify the 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? - Correct Answer - 8 hours
Which of the following does a traffic signal designer have to take into
consideration when designing a signal? - Correct Answer - Signal
phasing
Utilities
Cost
Which of the following are considerations that should be taken into
account when designing a new traffic signal? - Correct Answer - Types of
preemption required
, Coordination with nearby traffic signals
Traffic characteristics at the location
Multimeters are used to check: - Correct Answer - Resistance
Voltage
Current
What device is used to measure the resistance or breakdown strength of
conductor insulation: - Correct Answer - Megohmmeter
What device does a technician use to troubleshoot existing loops already
installed in the field: - Correct Answer - Loop analyzer
Resistance as expressed by Ohm's law is: - Correct Answer - R = E/I
Ohm's law is useful in the design and troubleshooting of circuits and
describes the mathematical relationship of the following: - Correct
Answer - Voltage
Current
Resistance
The typical traffic signal controller assembly is powered by what type of
electrical current: - Correct Answer - 120 volts of AC
Questions and Verified Answers Rated
A+ | Latest 2025/2026
What is the purpose of traffic signal inspection? - Correct Answer - -To
provide a record of construction
-To document results of tests
-To verify the 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? - Correct Answer - 8 hours
Which of the following does a traffic signal designer have to take into
consideration when designing a signal? - Correct Answer - Signal
phasing
Utilities
Cost
Which of the following are considerations that should be taken into
account when designing a new traffic signal? - Correct Answer - Types of
preemption required
, Coordination with nearby traffic signals
Traffic characteristics at the location
Multimeters are used to check: - Correct Answer - Resistance
Voltage
Current
What device is used to measure the resistance or breakdown strength of
conductor insulation: - Correct Answer - Megohmmeter
What device does a technician use to troubleshoot existing loops already
installed in the field: - Correct Answer - Loop analyzer
Resistance as expressed by Ohm's law is: - Correct Answer - R = E/I
Ohm's law is useful in the design and troubleshooting of circuits and
describes the mathematical relationship of the following: - Correct
Answer - Voltage
Current
Resistance
The typical traffic signal controller assembly is powered by what type of
electrical current: - Correct Answer - 120 volts of AC
