Traffic Signal Field Technician Level 1
and 2 Exam Questions with 100%
Correct Answers Latest Version A+
What was limited by the fourth proprietary connector used
with the NEMA TS-1?
the type of replacement model
Which type of controller utilizes a high speed data channel
between all major equipment to maximize the functionality
and expandability of the controller assembly?
NEMA TS-2 Type 1
What greatly reduced wire connections in the controller
cabinet with the use of the RS-485 with the SDLC?
Bus interface unit
What was the intent of developing the ATC specifications?
To have an open architecture hardware and software platform for
ITS application
Which agency developed a communications protocol for ITS
systems, field devices and software so basic functionality
should be interchangeable regardless of the manufacturer?
NTCIP
Before beginning work that requires workers or vehicles to
be in or over the roadway, what should traffic signal field
technicians ensure is in place?
Temporary traffic control (TTC)
What is NOT a common type of truck used for traffic signal
maintenance?
dump truck
Traffic signals can be attached to Mast Arms using which of
the following?
- disconnect hangers attached to the mast arm which
suspend the signal
- bracket that is rigidly mounted to the mast arm with a
, clamping device
- pipe mounts that screw into nipples installed directly into
the mast arm
- ALL of the above
all of the above
Traffic signal supports are NOT used to display the following
items:
advertisements
Methods of signal supports include what?
Truss supports, monotube supports, pedestal supports
What is NOT an advantage of attaching signals to mast arms
with brackets?
allow for the signal to "give" in the wind
What are the 2 basic types of booms used on bucket trucks?
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?
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 -
CMU and MMU
What is the purpose of relays in a traffic signal system?
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?
Isolator
Which of the following combinations would cause the signal
to enter flashing mode according to NEMA?
and 2 Exam Questions with 100%
Correct Answers Latest Version A+
What was limited by the fourth proprietary connector used
with the NEMA TS-1?
the type of replacement model
Which type of controller utilizes a high speed data channel
between all major equipment to maximize the functionality
and expandability of the controller assembly?
NEMA TS-2 Type 1
What greatly reduced wire connections in the controller
cabinet with the use of the RS-485 with the SDLC?
Bus interface unit
What was the intent of developing the ATC specifications?
To have an open architecture hardware and software platform for
ITS application
Which agency developed a communications protocol for ITS
systems, field devices and software so basic functionality
should be interchangeable regardless of the manufacturer?
NTCIP
Before beginning work that requires workers or vehicles to
be in or over the roadway, what should traffic signal field
technicians ensure is in place?
Temporary traffic control (TTC)
What is NOT a common type of truck used for traffic signal
maintenance?
dump truck
Traffic signals can be attached to Mast Arms using which of
the following?
- disconnect hangers attached to the mast arm which
suspend the signal
- bracket that is rigidly mounted to the mast arm with a
, clamping device
- pipe mounts that screw into nipples installed directly into
the mast arm
- ALL of the above
all of the above
Traffic signal supports are NOT used to display the following
items:
advertisements
Methods of signal supports include what?
Truss supports, monotube supports, pedestal supports
What is NOT an advantage of attaching signals to mast arms
with brackets?
allow for the signal to "give" in the wind
What are the 2 basic types of booms used on bucket trucks?
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?
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 -
CMU and MMU
What is the purpose of relays in a traffic signal system?
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?
Isolator
Which of the following combinations would cause the signal
to enter flashing mode according to NEMA?
