ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL EXAM
ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL EXAM VERSION A
NEWEST 2025/2026 COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS|ALREADY GRADED A+
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 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
1|Page
, ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL EXAM
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
What is the standard used to define how traffic signal controllers and networks
communicate? - ANSWER-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? - ANSWER-Replace the modem
2|Page
, ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL EXAM
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? -
ANSWER-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? - ANSWER-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? - ANSWER-Observe signal is
operating per plans.
Which of the following could cause signals at an intersection to repeatedly go into
flash? - ANSWER-The MMU shows conflict on phases 2, 6, and 4 during the red
interval on 2 and 6. The phase 4 field terminal is blackened and the terminal screw
is loose
A traffic signal head for phase 8 east bound amber is out; the load switch is blown.
The Tech checks field terminals in the cabinet with a multimeter and verifies the
wire is shorted. Which of the following options describes the MOST LIKELY cause
of the shorted wire? - ANSWER-Signal cable has rubbed through to bare copper.
3|Page
, ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL EXAM
A technician is at an intersection with a signal indication that is out. What is the
FIRST step the technician should take? - ANSWER-check output voltage in field
wiring.
A pedestrian phase is not being serviced after the push button is activated. What
is the FIRST thing the technician should do? - ANSWER-Verify input is received in
the controller.
The Tech receives a call for a damaged signal head. When arriving on the scene,
what is the FIRST thing the technician does? - ANSWER-Observe the intersection.
The technician arrives at an intersection where all the signals are out. What does
the technician do
FIRST? - ANSWER-check the line service to make sure there is main power.
The technician arrives at an intersection that is dark. What type of meter does the
technician use
the check voltage? - ANSWER-Multimeter
A technician received a call that a signal head was knocked down. The technician
arrives on scene, repairs the problem, observes the intersection is functioning
properly and completes his job duties. What is the technician's LAST task before
leaving the intersection? - ANSWER-Document all repairs and the incident in the
maintenance logs.
4|Page
ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL EXAM VERSION A
NEWEST 2025/2026 COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS|ALREADY GRADED A+
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 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
1|Page
, ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL EXAM
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
What is the standard used to define how traffic signal controllers and networks
communicate? - ANSWER-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? - ANSWER-Replace the modem
2|Page
, ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL EXAM
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? -
ANSWER-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? - ANSWER-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? - ANSWER-Observe signal is
operating per plans.
Which of the following could cause signals at an intersection to repeatedly go into
flash? - ANSWER-The MMU shows conflict on phases 2, 6, and 4 during the red
interval on 2 and 6. The phase 4 field terminal is blackened and the terminal screw
is loose
A traffic signal head for phase 8 east bound amber is out; the load switch is blown.
The Tech checks field terminals in the cabinet with a multimeter and verifies the
wire is shorted. Which of the following options describes the MOST LIKELY cause
of the shorted wire? - ANSWER-Signal cable has rubbed through to bare copper.
3|Page
, ISMA TRAFFIC SIGNAL TECHNICIAN II ACTUAL EXAM
A technician is at an intersection with a signal indication that is out. What is the
FIRST step the technician should take? - ANSWER-check output voltage in field
wiring.
A pedestrian phase is not being serviced after the push button is activated. What
is the FIRST thing the technician should do? - ANSWER-Verify input is received in
the controller.
The Tech receives a call for a damaged signal head. When arriving on the scene,
what is the FIRST thing the technician does? - ANSWER-Observe the intersection.
The technician arrives at an intersection where all the signals are out. What does
the technician do
FIRST? - ANSWER-check the line service to make sure there is main power.
The technician arrives at an intersection that is dark. What type of meter does the
technician use
the check voltage? - ANSWER-Multimeter
A technician received a call that a signal head was knocked down. The technician
arrives on scene, repairs the problem, observes the intersection is functioning
properly and completes his job duties. What is the technician's LAST task before
leaving the intersection? - ANSWER-Document all repairs and the incident in the
maintenance logs.
4|Page
