IMSA Traffic Signal Technician Level II Exam V1 |
(Latest Update) Questions and Verified
Answers | Grade A | 100% Correct
Question:
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
Question:
On a 2070 MMU monitor unit, how does the field tech program allowable phases?
Answer:
Remove diode on program card for allowable phases
Question:
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
Question:
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
Question:
According to best maintenance practices, how often should CMU/MMU be tested?
Answer:
Annually
Question:
The MMU indicates a RED-FAIL fault on phase 6. Why?
Answer:
The load switch/switch pack produces no outputs.
Question:
The purpose of the controller CVM (Controller Voltage Monitor) output is to allow the
CMU/MMU to
Answer:
monitor the
Controller health
Question:
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
Question:
Absence of all colors on a load switch will be indicated by what fault on an MMU or MMU2?
Answer:
Red Fail
Question:
Which of the following can be programmed on an MMU to latch after a fault occurs?
Answer:
Field check
Question:
How often is an MMU's clock updated from the controller?
Answer:
Once a second
Question:
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
(Latest Update) Questions and Verified
Answers | Grade A | 100% Correct
Question:
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
Question:
On a 2070 MMU monitor unit, how does the field tech program allowable phases?
Answer:
Remove diode on program card for allowable phases
Question:
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
Question:
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
Question:
According to best maintenance practices, how often should CMU/MMU be tested?
Answer:
Annually
Question:
The MMU indicates a RED-FAIL fault on phase 6. Why?
Answer:
The load switch/switch pack produces no outputs.
Question:
The purpose of the controller CVM (Controller Voltage Monitor) output is to allow the
CMU/MMU to
Answer:
monitor the
Controller health
Question:
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
Question:
Absence of all colors on a load switch will be indicated by what fault on an MMU or MMU2?
Answer:
Red Fail
Question:
Which of the following can be programmed on an MMU to latch after a fault occurs?
Answer:
Field check
Question:
How often is an MMU's clock updated from the controller?
Answer:
Once a second
Question:
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
