IMSA TRAFFIC SIGNAL
TECHNICIAN 2 EXAM 2026/2027
WITH 100 QUESTIONS AND
EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED
A+ | GUARANTEED PASS
An older TS1 cabinet experiences a flash condition but the signal heads are also
showing active green, yellow, and red indications. What is the MOST COMMON
issue? - ANSWER-The mercury contactor is stuck in the normal position.
In a Dual-Ring, 8-phase traffic signal controller, how many phases can run in each
ring at the same
time? - ANSWER-1
, Observations indicate that vehicles are being detected in one lane and that this is
shown on the detection interface unit. However, the controller does not show any
detection for that phase. This could be caused by - ANSWER-Improper detection
phase assignment programming in the controller
As soon as vehicles leave the detection zone of an approach that has met its
minimum green time, a signal immediately goes to yellow from the green display.
This could be a result of - ANSWER-no extension time programmed.
What is one reason the phase interval may change even though there is still vehicle
demand? - ANSWER-maximum green time has been met
A signal tech is reviewing the controller logs and continually sees a cycle fault
error. What does that
mean? - ANSWER-The CU has not serviced a call in two cycles while in free
mode.
A coordinated corridor is working well except at one intersection where a platoon
of vehicles is being stopped. The MOST LIKELY problem is the - ANSWER-
clock has drifted affecting the offset and needs adjusting
Observations indicate that right turning vehicles approach the intersection on the
side street, stop and then make a right turn on red. When this happens the signals
cycle to the side street even though there are no longer vehicles present in the
detection zone. This could be caused by - ANSWER-the detection being set to
locking detection
Of the following, which answer MOST LIKELY would require a controller
database be verified to be
correct? - ANSWER-When a controller upgrade has been performed
TECHNICIAN 2 EXAM 2026/2027
WITH 100 QUESTIONS AND
EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED
A+ | GUARANTEED PASS
An older TS1 cabinet experiences a flash condition but the signal heads are also
showing active green, yellow, and red indications. What is the MOST COMMON
issue? - ANSWER-The mercury contactor is stuck in the normal position.
In a Dual-Ring, 8-phase traffic signal controller, how many phases can run in each
ring at the same
time? - ANSWER-1
, Observations indicate that vehicles are being detected in one lane and that this is
shown on the detection interface unit. However, the controller does not show any
detection for that phase. This could be caused by - ANSWER-Improper detection
phase assignment programming in the controller
As soon as vehicles leave the detection zone of an approach that has met its
minimum green time, a signal immediately goes to yellow from the green display.
This could be a result of - ANSWER-no extension time programmed.
What is one reason the phase interval may change even though there is still vehicle
demand? - ANSWER-maximum green time has been met
A signal tech is reviewing the controller logs and continually sees a cycle fault
error. What does that
mean? - ANSWER-The CU has not serviced a call in two cycles while in free
mode.
A coordinated corridor is working well except at one intersection where a platoon
of vehicles is being stopped. The MOST LIKELY problem is the - ANSWER-
clock has drifted affecting the offset and needs adjusting
Observations indicate that right turning vehicles approach the intersection on the
side street, stop and then make a right turn on red. When this happens the signals
cycle to the side street even though there are no longer vehicles present in the
detection zone. This could be caused by - ANSWER-the detection being set to
locking detection
Of the following, which answer MOST LIKELY would require a controller
database be verified to be
correct? - ANSWER-When a controller upgrade has been performed
