TRAFFIC SIGNAL FIELD
TECHNICIAN LEVEL II EXAM
2026/2027 WITH 110 QUESTIONS AND
EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED SUCCESS
What are the 2 basic types of booms used on bucket trucks? - ANSWER-
articulating and extensible
Traffic signals are not always where an aerial lift can be positioned properly. What
should you always do when operating aerial lifts? - ANSWER-Use the stabilizers
to provide additional support when the lift is in operation
Check for proper operating DC voltage, check for the absence of red on a phase
that does not have green, yellow, or walk, check on a simultaneous are functions
that are provided by both - - ANSWER-CMU and MMU
, What is the purpose of relays in a traffic signal system? - ANSWER-to transfer the
outputs from one component to another
What device minimizes the amount of voltage that might be available at a
pedestrian push button should the button malfunction? - ANSWER-Isolator
Which of the following combinations would cause the signal to enter flashing
mode according to NEMA? - ANSWER-green & yellow
yellow & red
walk & yellow
What feature is included in the 170 or 2070 monitors vs. the NEMA monitor? -
ANSWER-plug in
Which group of features best describes why malfunction monitoring units are more
advanced then conflict monitors? - ANSWER-ethernet connections
monitoring SDLC communications
RS-232 communications port
Which type of power supply lines are attached from the power supply (service)
inside the power panel?
-120 v, 40 H, single phase, AC+ and AC-
- 120 v, 60 H, single phase DC+ and DC-
- 120 v, 60 H, single phase AC+ and AC-
- 240 v, 60 H, single phase AC+ and AC- - ANSWER-120 v, 60H, single phase,
AC+ and AC-
TECHNICIAN LEVEL II EXAM
2026/2027 WITH 110 QUESTIONS AND
EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED SUCCESS
What are the 2 basic types of booms used on bucket trucks? - ANSWER-
articulating and extensible
Traffic signals are not always where an aerial lift can be positioned properly. What
should you always do when operating aerial lifts? - ANSWER-Use the stabilizers
to provide additional support when the lift is in operation
Check for proper operating DC voltage, check for the absence of red on a phase
that does not have green, yellow, or walk, check on a simultaneous are functions
that are provided by both - - ANSWER-CMU and MMU
, What is the purpose of relays in a traffic signal system? - ANSWER-to transfer the
outputs from one component to another
What device minimizes the amount of voltage that might be available at a
pedestrian push button should the button malfunction? - ANSWER-Isolator
Which of the following combinations would cause the signal to enter flashing
mode according to NEMA? - ANSWER-green & yellow
yellow & red
walk & yellow
What feature is included in the 170 or 2070 monitors vs. the NEMA monitor? -
ANSWER-plug in
Which group of features best describes why malfunction monitoring units are more
advanced then conflict monitors? - ANSWER-ethernet connections
monitoring SDLC communications
RS-232 communications port
Which type of power supply lines are attached from the power supply (service)
inside the power panel?
-120 v, 40 H, single phase, AC+ and AC-
- 120 v, 60 H, single phase DC+ and DC-
- 120 v, 60 H, single phase AC+ and AC-
- 240 v, 60 H, single phase AC+ and AC- - ANSWER-120 v, 60H, single phase,
AC+ and AC-
