IMSA Traffic Signal III Practice Questions - IMSA Traffic Signal Senior Field Technician Level III Certification Exam

What is the primary function of a Malfunction Management Unit (MMU) in a NEMA TS2 traffic signal cabinet?

To optimize signal timing plans automatically To monitor for conflicting signal indications and place the intersection into flash mode if detected To communicate with the central traffic management system To provide backup power during electrical outages

Correct Answer:

To monitor for conflicting signal indications and place the intersection into flash mode if detected

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