IMSA Traffic Signal Technician 1 Exam | Complete
Questions and Correct Answers | Graded A+ |
Verified Answers | Just Released
What is a toll plaza signal? ---------CORRECT ANSWER-----------------It's a multiple
lanes where one or more lanes is sometimes closed to traffic,a lane use control
signal shall be installed above the center of each toll plaza lane to indicate the
open or close status of the control the lane.
What is a traffic signal cycle or other words ( cycle length) ? ---------CORRECT
ANSWER-----------------Is the total elapsed Time between the start of a specific
display until that display comes up again
The cycle is sometimes referred to as a ? & why ? ---------CORRECT ANSWER---------
--------" Dial" & because a rotating dial is used to control the timing of the various
signal displays
What is the traffic signal phase ? ---------CORRECT ANSWER-----------------Commonly
associated with the specific assigned timing function in the traffic signal controller
If an intersection that has four through phases and four left turn faces is to be in?
---------CORRECT ANSWER-----------------Eight phase intersectionq
,What are the "1-8 even phase numbers " asign too ? ---------CORRECT ANSWER-----
------------Through movements
What " phases" are the major-street through movements ? ---------CORRECT
ANSWER-----------------Phases 2 and 6
Odd Numbers are assigned to what "phase " ---------CORRECT ANSWER---------------
--Left turn phases
An intersection that has four through phases and four left turn faces is what ? -----
----CORRECT ANSWER-----------------Said to be in "eight phase intersection"
What is a interval ? ---------CORRECT ANSWER-----------------Is the amount of time
that a particular indication is giving during a phase
What is a "rings"? ---------CORRECT ANSWER-----------------is a serious of conflicting
phases that occur in an established order, but can never occur simultaneously ( in
the same time) with each other.
,There are two types of "rings " for controllers they are typically what ? ---------
CORRECT ANSWER-----------------"Single ring" or "dual ring"
The number of rings is depending upon what? ---------CORRECT ANSWER-------------
----The phasing that is required for the intersection operation
What is the boundary point in the preferred sequence of a dual ring controller
that both rings must simultaneously ( at the same time) cross? ---------CORRECT
ANSWER-----------------Barrier
On a dual controller, there are two barriers and what are those ? ---------CORRECT
ANSWER-----------------Two barriers
-One for leaving the major street and -one for leaving the minor street
Traffic signal controllers that operate in a fully- actuated or semi-actuated mode
use some type of what ? ---------CORRECT ANSWER-----------------Vehicle detection
equipment
What does vehicle detection system do ? ---------CORRECT ANSWER-----------------
Detects vehicles on the intersection approaches and sends a message or call to
, the controller that an approach needs to receive a green indication. So they can
proceed.
How do loop detectors operate on what ? ---------CORRECT ANSWER-----------------
Inductive
Loop detectors can be installed in a variety of configurations and shapes
including? ---------CORRECT ANSWER-----------------Square, rectangular,double
rectangular(quadrupole),diamond,
Circular and octagonal
What is another name for a double rectangular loop dectectors? ---------CORRECT
ANSWER-----------------( quadrupole)
Regardless of the configuration of the loop,and the placement of the wire in the
loop requires multiple what ? ---------CORRECT ANSWER-----------------Wraps or
"Turns" of wire to form the loop
What should you do first before preforming duties in the proximity of overhead
power lines ? ---------CORRECT ANSWER-----------------They must communicate with
the power company prior to starting the work and coordinate the activities that a
representative of the power company can be in attendance to assist while the
work is being performed
Questions and Correct Answers | Graded A+ |
Verified Answers | Just Released
What is a toll plaza signal? ---------CORRECT ANSWER-----------------It's a multiple
lanes where one or more lanes is sometimes closed to traffic,a lane use control
signal shall be installed above the center of each toll plaza lane to indicate the
open or close status of the control the lane.
What is a traffic signal cycle or other words ( cycle length) ? ---------CORRECT
ANSWER-----------------Is the total elapsed Time between the start of a specific
display until that display comes up again
The cycle is sometimes referred to as a ? & why ? ---------CORRECT ANSWER---------
--------" Dial" & because a rotating dial is used to control the timing of the various
signal displays
What is the traffic signal phase ? ---------CORRECT ANSWER-----------------Commonly
associated with the specific assigned timing function in the traffic signal controller
If an intersection that has four through phases and four left turn faces is to be in?
---------CORRECT ANSWER-----------------Eight phase intersectionq
,What are the "1-8 even phase numbers " asign too ? ---------CORRECT ANSWER-----
------------Through movements
What " phases" are the major-street through movements ? ---------CORRECT
ANSWER-----------------Phases 2 and 6
Odd Numbers are assigned to what "phase " ---------CORRECT ANSWER---------------
--Left turn phases
An intersection that has four through phases and four left turn faces is what ? -----
----CORRECT ANSWER-----------------Said to be in "eight phase intersection"
What is a interval ? ---------CORRECT ANSWER-----------------Is the amount of time
that a particular indication is giving during a phase
What is a "rings"? ---------CORRECT ANSWER-----------------is a serious of conflicting
phases that occur in an established order, but can never occur simultaneously ( in
the same time) with each other.
,There are two types of "rings " for controllers they are typically what ? ---------
CORRECT ANSWER-----------------"Single ring" or "dual ring"
The number of rings is depending upon what? ---------CORRECT ANSWER-------------
----The phasing that is required for the intersection operation
What is the boundary point in the preferred sequence of a dual ring controller
that both rings must simultaneously ( at the same time) cross? ---------CORRECT
ANSWER-----------------Barrier
On a dual controller, there are two barriers and what are those ? ---------CORRECT
ANSWER-----------------Two barriers
-One for leaving the major street and -one for leaving the minor street
Traffic signal controllers that operate in a fully- actuated or semi-actuated mode
use some type of what ? ---------CORRECT ANSWER-----------------Vehicle detection
equipment
What does vehicle detection system do ? ---------CORRECT ANSWER-----------------
Detects vehicles on the intersection approaches and sends a message or call to
, the controller that an approach needs to receive a green indication. So they can
proceed.
How do loop detectors operate on what ? ---------CORRECT ANSWER-----------------
Inductive
Loop detectors can be installed in a variety of configurations and shapes
including? ---------CORRECT ANSWER-----------------Square, rectangular,double
rectangular(quadrupole),diamond,
Circular and octagonal
What is another name for a double rectangular loop dectectors? ---------CORRECT
ANSWER-----------------( quadrupole)
Regardless of the configuration of the loop,and the placement of the wire in the
loop requires multiple what ? ---------CORRECT ANSWER-----------------Wraps or
"Turns" of wire to form the loop
What should you do first before preforming duties in the proximity of overhead
power lines ? ---------CORRECT ANSWER-----------------They must communicate with
the power company prior to starting the work and coordinate the activities that a
representative of the power company can be in attendance to assist while the
work is being performed
