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ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL
EXAM VERSION B NEWEST 2025/2026
COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS|ALREADY GRADED A+
Which of the following terms is used to describe when two loop fields interact with each other in an adverse way? - ANSWER- Cross-talking
Adding turns to a loop - ANSWER-Increases the inductance
Which detection systems typically cannot be used for pedestrian detection? - ANSWER-Loops
What is the BEST way to determine if a loop wire's insulation has failed? - ANSWER-Visual Inspection
When installing a ground rod it MUST BE installed so that the Technician can obtain an ohm reading of - ANSWER-25 ohm or less. 1 / 3
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Logic ground should be - ANSWER-Isolated from cabinet.
What is one of the QUICKEST ways to determine if a piece of electrical equipment has been burnt by a short or high voltage? - ANSWER-there will be an odor that can be detected
What is a MAJOR reason for an AC line filter being installed in a cabinet? - ANSWER-To limit damaging effects of transient noise and other interference
For the Emergency Vehicle Pre-Emption system, what is the BEST way for the Tech to test the operation of the system? - ANSWER-Drive the corridor with a vehicle equipped with an EVP transmitter.
What is the importance of track clearance time in a railroad preemption? - ANSWER-It provides the time for vehicles to exit the track area prior to the gates being lowered.
What is the LAST set of steps a Technician should do after repairing any pedestrian problems? - ANSWER-Document repairs in log book and observe the traffic signal operating for 2 / 3
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several cycles. Ensure that the pedestrian and vehicle phases are operating per plan.
After a Tech has made a modification to a traffic signal, which of the follow is the MOST IMPORTANT to complete? - ANSWER-Document in cabinet log book and on signal intersection schematic.
While in the field, where would an Tech find information about work that has been performed at a traffic signal intersection? - ANSWER-The cabinet log book, located inside traffic signal cabinet.
The cabinet has been modified and new detection is added.Where is the MOST appropriate place to note the additions? - ANSWER-Add details to the log book noting all the changes
Which of the following documents should a technician check when performing controller troubleshooting? - ANSWER- Maintenance logs/intersection drawings/timing charts
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