IMSA Traffic Signal Technician Level
2 || Exam Questions & Answers ||
Complete Practice Test || Latest
2026–2027
** Expert-Verified Explanation
** All Questions with Verified Answer
** Guaranteed Pass
** 100% Correct Answers | Graded A+
, In a TS2 cabinet, how many times can the MMU 1
experience a "Port 1 Fail" in a 24 hour period before
the fault is latched?
On a 2070 MMU monitor unit, how does the field tech Remove diode on program card for allowable phases
program allowable phases?
On an MMU, is it possible to tape the reset button to Yes, it by-passes the conflict feature and will not flash
prevent the traffic signal from going into flash?
On a NEMA CMU program card, how does the signal Install copper jumpers and soldering them on the program card
tech program allowable phases?
According to best maintenance practices, how often Annually
should CMU/MMU be tested?
The MMU indicates a RED-FAIL fault on phase 6. Why? The load switch/switch pack produces no outputs.
The purpose of the controller CVM (Controller Voltage Controller health
Monitor) output is to allow the CMU/MMU to
monitor the
When a Technician is recertifying the CMU/MMU at an Replace the CMU/MMU with a newly tested unit
intersection, what should the technician do to have the
intersection exit flash?
Absence of all colors on a load switch will be indicated Red Fail
by what fault on an MMU or MMU2?
Which of the following can be programmed on an MMU Field check
to latch after a fault occurs?
How often is an MMU's clock updated from the Once a second
controller?
In a signal cabinet, on the signal monitor, what does a The signal indications don't match the controller output for a phase
field check indicate?
A NEMA CMU/MMU uses a program card to tell the NEMA monitors have wire jumpers missing in all positions, the tech solders the
monitor which phases are permitted to run together. ones in that allow phases to run together.
Which answer is CORRECT?
When the controller timings DO NOT match the timing Traffic Engineer
sheet, who should be contacted for correct
times?
An older TS1 cabinet experiences a flash condition but The mercury contactor is stuck in the normal position.
the signal heads are also showing active green, yellow,
and red indications. What is the MOST COMMON issue?
In a Dual-Ring, 8-phase traffic signal controller, how 1
many phases can run in each ring at the same
time?
2 || Exam Questions & Answers ||
Complete Practice Test || Latest
2026–2027
** Expert-Verified Explanation
** All Questions with Verified Answer
** Guaranteed Pass
** 100% Correct Answers | Graded A+
, In a TS2 cabinet, how many times can the MMU 1
experience a "Port 1 Fail" in a 24 hour period before
the fault is latched?
On a 2070 MMU monitor unit, how does the field tech Remove diode on program card for allowable phases
program allowable phases?
On an MMU, is it possible to tape the reset button to Yes, it by-passes the conflict feature and will not flash
prevent the traffic signal from going into flash?
On a NEMA CMU program card, how does the signal Install copper jumpers and soldering them on the program card
tech program allowable phases?
According to best maintenance practices, how often Annually
should CMU/MMU be tested?
The MMU indicates a RED-FAIL fault on phase 6. Why? The load switch/switch pack produces no outputs.
The purpose of the controller CVM (Controller Voltage Controller health
Monitor) output is to allow the CMU/MMU to
monitor the
When a Technician is recertifying the CMU/MMU at an Replace the CMU/MMU with a newly tested unit
intersection, what should the technician do to have the
intersection exit flash?
Absence of all colors on a load switch will be indicated Red Fail
by what fault on an MMU or MMU2?
Which of the following can be programmed on an MMU Field check
to latch after a fault occurs?
How often is an MMU's clock updated from the Once a second
controller?
In a signal cabinet, on the signal monitor, what does a The signal indications don't match the controller output for a phase
field check indicate?
A NEMA CMU/MMU uses a program card to tell the NEMA monitors have wire jumpers missing in all positions, the tech solders the
monitor which phases are permitted to run together. ones in that allow phases to run together.
Which answer is CORRECT?
When the controller timings DO NOT match the timing Traffic Engineer
sheet, who should be contacted for correct
times?
An older TS1 cabinet experiences a flash condition but The mercury contactor is stuck in the normal position.
the signal heads are also showing active green, yellow,
and red indications. What is the MOST COMMON issue?
In a Dual-Ring, 8-phase traffic signal controller, how 1
many phases can run in each ring at the same
time?
