ISMA TRAFFIC SIGNAL TECHNICIAN II
EXAM VERSION B 2025/2026 WITH ACTUAL
CORRECT QUESTIONS AND VERIFIED
DETAILED ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS |ALREADY
GRADED A+|NEWEST|BRAND NEW
VERSION!!|GUARANTEED PASS
What is one of the QUICKEST ways to determine if a piece of electrical equipment has been
burnt by a short or high voltage?
there will be an odor that can be detected
What is a MAJOR reason for an AC line filter being installed in a cabinet?
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?
Drive the corridor with a vehicle equipped with an EVP transmitter.
What is the importance of track clearance time in a railroad preemption?
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?
Document repairs in log book and observe the traffic signal operating for 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?
Document in cabinet log book and on signal intersection schematic.
1|Page
, While in the field, where would an Tech find information about work that has been performed
at a traffic signal intersection?
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?
Add details to the log book noting all the changes
Which of the following documents should a technician check when performing controller
troubleshooting?
Maintenance logs/intersection drawings/timing charts
What is the standard used to define how traffic signal controllers and networks communicate?
National Transportation Communications for Intelligent Transportation systems (ITS) protocol
(NTCIP).
The traffic management center notifies a field tech that the communications to maple st. And
1st street cuts in and out. The tech arrives at the intersection finding the modem is overheating
and indicator lights are blank. After about twenty minutes of checking cables, the tech notices
the modem is active again and cool to the touch. The TMC confirms communications are
restored. The tech Checks the log book and finds this problem is a recuring issue. what should
the tech do?
Replace the modem
A managed network switch is being used in the cabinet. What is needed in the IP programming
of the controller to get through the switch and to the TOC?
Gateway
The pedestrian assembly (pedestrian 6) on the SW corner was damaged in a traffic accident and
the tech cannot repair until the following day. What should the Tech do until they return to
replace the pedestrian assembly?
Make wiring safe. Bag opposite signal display pedestrian phase (6). Document in cabinet log
book and work order system. Notify supervisor that they need a pedestrian display assembly
and to schedule the installation.
After doing any repairs at a traffic signal which of the following is the MOST IMPORTANT to do
before leaving the intersection?
2|Page
EXAM VERSION B 2025/2026 WITH ACTUAL
CORRECT QUESTIONS AND VERIFIED
DETAILED ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS |ALREADY
GRADED A+|NEWEST|BRAND NEW
VERSION!!|GUARANTEED PASS
What is one of the QUICKEST ways to determine if a piece of electrical equipment has been
burnt by a short or high voltage?
there will be an odor that can be detected
What is a MAJOR reason for an AC line filter being installed in a cabinet?
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?
Drive the corridor with a vehicle equipped with an EVP transmitter.
What is the importance of track clearance time in a railroad preemption?
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?
Document repairs in log book and observe the traffic signal operating for 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?
Document in cabinet log book and on signal intersection schematic.
1|Page
, While in the field, where would an Tech find information about work that has been performed
at a traffic signal intersection?
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?
Add details to the log book noting all the changes
Which of the following documents should a technician check when performing controller
troubleshooting?
Maintenance logs/intersection drawings/timing charts
What is the standard used to define how traffic signal controllers and networks communicate?
National Transportation Communications for Intelligent Transportation systems (ITS) protocol
(NTCIP).
The traffic management center notifies a field tech that the communications to maple st. And
1st street cuts in and out. The tech arrives at the intersection finding the modem is overheating
and indicator lights are blank. After about twenty minutes of checking cables, the tech notices
the modem is active again and cool to the touch. The TMC confirms communications are
restored. The tech Checks the log book and finds this problem is a recuring issue. what should
the tech do?
Replace the modem
A managed network switch is being used in the cabinet. What is needed in the IP programming
of the controller to get through the switch and to the TOC?
Gateway
The pedestrian assembly (pedestrian 6) on the SW corner was damaged in a traffic accident and
the tech cannot repair until the following day. What should the Tech do until they return to
replace the pedestrian assembly?
Make wiring safe. Bag opposite signal display pedestrian phase (6). Document in cabinet log
book and work order system. Notify supervisor that they need a pedestrian display assembly
and to schedule the installation.
After doing any repairs at a traffic signal which of the following is the MOST IMPORTANT to do
before leaving the intersection?
2|Page
