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IMSA TRAFFIC SIGNAL TECHNICIAN LEVEL 1 FINAL EXAM
2025/2026 NEWEST ACTUAL EXAM WITH COMPLETE
QUESTIONS AND VERIFIED ANSWERS |ALREADY GRADED
A+|
Which of the following is NOT a common mode of operation for
timing plans in a signal system: -ANSWERS-Y: Time of day
N: Traffic related
Y: Traffic Responsive
Y: Traffic adaptive
Two common terms to describe traffic signal supports and signal
heads are: -ANSWERS-Rigid and free-swinging
In a single wire with a single point attachment configuration, the
wire that supports the signal head is called the: -ANSWERS-
Messenger wire
The two nominal diameter sizes for vehicular signal lenses are: -
ANSWERS-8 in (200 mm) and 12 in (300 mm)
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The purpose for "louvers" is to: -ANSWERS-Make signal visible
from a specific lane
Which of the following types of conduit are used for traffic
signals? -ANSWERS-Rigid Steel Conduit
High-Density Polyethylene (HDPE)
PVC Schedule 40
Traffic signal supports are NOT used to display the following
items: -ANSWERS-Y: Guide signs
N: Advertisements
Y: Regulatory signs
Y: Overhead street sign names
Which of the following is a disadvantage of mast arms: -
ANSWERS-Large foundations
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Methods of signal supports include all of these except: -
ANSWERS-N: Arched supports
Y: Truss supports
Y: Monotube supports
Y: Pedestal supports
Components of the optical unit for an incandescent lamp include
all of the following except: -ANSWERS-Y: Lamp socket
N: Shade
Y: Lens
Y: Reflector
For pedestrian signals controlling crosswalks less than 100 feet,
what is the required height of the symbols themselves: -
ANSWERS-At least 6 inches
Loop detectors operate on the principle of: -ANSWERS-
Inductance
IMSA TRAFFIC SIGNAL TECHNICIAN LEVEL 1 FINAL EXAM
2025/2026 NEWEST ACTUAL EXAM WITH COMPLETE
QUESTIONS AND VERIFIED ANSWERS |ALREADY GRADED
A+|
Which of the following is NOT a common mode of operation for
timing plans in a signal system: -ANSWERS-Y: Time of day
N: Traffic related
Y: Traffic Responsive
Y: Traffic adaptive
Two common terms to describe traffic signal supports and signal
heads are: -ANSWERS-Rigid and free-swinging
In a single wire with a single point attachment configuration, the
wire that supports the signal head is called the: -ANSWERS-
Messenger wire
The two nominal diameter sizes for vehicular signal lenses are: -
ANSWERS-8 in (200 mm) and 12 in (300 mm)
, Page |2
The purpose for "louvers" is to: -ANSWERS-Make signal visible
from a specific lane
Which of the following types of conduit are used for traffic
signals? -ANSWERS-Rigid Steel Conduit
High-Density Polyethylene (HDPE)
PVC Schedule 40
Traffic signal supports are NOT used to display the following
items: -ANSWERS-Y: Guide signs
N: Advertisements
Y: Regulatory signs
Y: Overhead street sign names
Which of the following is a disadvantage of mast arms: -
ANSWERS-Large foundations
, Page |3
Methods of signal supports include all of these except: -
ANSWERS-N: Arched supports
Y: Truss supports
Y: Monotube supports
Y: Pedestal supports
Components of the optical unit for an incandescent lamp include
all of the following except: -ANSWERS-Y: Lamp socket
N: Shade
Y: Lens
Y: Reflector
For pedestrian signals controlling crosswalks less than 100 feet,
what is the required height of the symbols themselves: -
ANSWERS-At least 6 inches
Loop detectors operate on the principle of: -ANSWERS-
Inductance
