IMSA Traffic Signal Technician Level II
Questions and Verified Answers
Grade A 100% Correct Update
This Exam contains:
100% Guarantee Pass.
Actual Questions and Answers
Multiple choice (single best answer)
Case Studies/Scenario-Based Questions
Verified Rationales
1/
23
,1. In a TS2 cabinet, how many times can the MMU experience a "Port 1 Fail" in a 24 hour period
before
the fault is latched?
Answer 1
2. On a 2070 MMU monitor unit, how does the field tech program allowable phases?
Answer Remove diode on program card for allowable phases
3. On an MMU, is it possible to tape the reset button to prevent the traffic signal from going into
flash?
Answer Yes, it by-passes the conflict feature and will not flash
4. On a NEMA CMU program card, how does the signal tech program allowable phases?
Answer Install copper jumpers and soldering them on the program card
5. According to best maintenance practices, how often should CMU/MMU be tested?
Answer Annually
6. The MMU indicates a RED-FAIL fault on phase 6.Why?
Answer The load switch/switch pack produces no outputs.
7. The purpose of the controller CVM (Controller Voltage Monitor) output is to allow the
CMU/MMU to
monitor the
Answer Controller health
2/
23
, 8. When a Technician is recertifying the CMU/MMU at an intersection, what should the
technician do to have the intersection exit flash?
Answer Replace the CMU/MMU with a newly tested unit
9. Absence of all colors on a load switch will be indicated by what fault on an MMU or MMU2?
Answer Red Fail
10. Which of the following can be programmed on an MMU to latch after a fault occurs?
Answer Field check
11. How often is an MMU's clock updated from the controller?
Answer Once a second
12. In a signal cabinet, on the signal monitor, what does a field check indicate?-
Answer The signal indications don't match the controller output for a phase
13. A NEMA CMU/MMU uses a program card to tell the monitor which phases are permitted to
run together. Which answer is CORRECT?
Answer NEMA monitors have wire jumpers missing in all positions, the tech solders the ones in that
allow phases to run together.
14. When the controller timings DO NOT match the timing sheet, who should be contacted for
correct
times?
3/
23
Questions and Verified Answers
Grade A 100% Correct Update
This Exam contains:
100% Guarantee Pass.
Actual Questions and Answers
Multiple choice (single best answer)
Case Studies/Scenario-Based Questions
Verified Rationales
1/
23
,1. In a TS2 cabinet, how many times can the MMU experience a "Port 1 Fail" in a 24 hour period
before
the fault is latched?
Answer 1
2. On a 2070 MMU monitor unit, how does the field tech program allowable phases?
Answer Remove diode on program card for allowable phases
3. On an MMU, is it possible to tape the reset button to prevent the traffic signal from going into
flash?
Answer Yes, it by-passes the conflict feature and will not flash
4. On a NEMA CMU program card, how does the signal tech program allowable phases?
Answer Install copper jumpers and soldering them on the program card
5. According to best maintenance practices, how often should CMU/MMU be tested?
Answer Annually
6. The MMU indicates a RED-FAIL fault on phase 6.Why?
Answer The load switch/switch pack produces no outputs.
7. The purpose of the controller CVM (Controller Voltage Monitor) output is to allow the
CMU/MMU to
monitor the
Answer Controller health
2/
23
, 8. When a Technician is recertifying the CMU/MMU at an intersection, what should the
technician do to have the intersection exit flash?
Answer Replace the CMU/MMU with a newly tested unit
9. Absence of all colors on a load switch will be indicated by what fault on an MMU or MMU2?
Answer Red Fail
10. Which of the following can be programmed on an MMU to latch after a fault occurs?
Answer Field check
11. How often is an MMU's clock updated from the controller?
Answer Once a second
12. In a signal cabinet, on the signal monitor, what does a field check indicate?-
Answer The signal indications don't match the controller output for a phase
13. A NEMA CMU/MMU uses a program card to tell the monitor which phases are permitted to
run together. Which answer is CORRECT?
Answer NEMA monitors have wire jumpers missing in all positions, the tech solders the ones in that
allow phases to run together.
14. When the controller timings DO NOT match the timing sheet, who should be contacted for
correct
times?
3/
23
