IMSA Signal Tech 1 UPDATED ACTUAL
Exam Questions and CORRECT Answers
What Are The Sections Of A Ramp Meter Signal? - CORRECT ANSWER - Circular red,
circular green
Which of the following are potential safety hazards? - CORRECT ANSWER - Overhead
and underground power, Gas, Aerial lift equipment
Which of the following is a type of microwave detector? - CORRECT ANSWER -
Frequency-modulated continuous wave (FMCW)
For pedestrians signals controlling crosswalks less than 100 feet, what is the required height of
the symbols themselves: - CORRECT ANSWER - At least 6 inches
The first type of test performed on a controller cabinet assembly is: - CORRECT
ANSWER - Bench test
Which of the following are considerations that should be taken into account when designing a
new traffic signal? - CORRECT ANSWER - Types of preemption required, Coordination
with nearby traffic signals, and Traffic characteristics at the location
What is NOT part of an underground power service? - CORRECT ANSWER - Conduit
riser with weatherhead
Two common types of signal pole installations are: - CORRECT ANSWER - Direct
buried and foundation
What is the advantage of video detection systems? - CORRECT ANSWER - Images can
be sent to remote locations
, Continuity is a type of test for: - CORRECT ANSWER - Traffic signal conductors
Typical back-up battery systems provide battery power in case of an outage to a signal for: -
CORRECT ANSWER - 2-6 hours
Two common terms to describe traffic signal support and signal heads are: - CORRECT
ANSWER - Rigid and Free-Swinging
When dealing with the public, a technician should: - CORRECT ANSWER - Avoid
arguing
The most labor intensive type of vehicle detection installed is: - CORRECT ANSWER -
Inductive loop detection
Which of the following is a disadvantage of mast arms: - CORRECT ANSWER - Large
foundations
The two nominal diameter sizes for vehicular signal lenses are: - CORRECT ANSWER -8
in (200 mm) and 12 in (300 mm)
The two types of traffic signal maintenance that are typically performed are: - CORRECT
ANSWER - Emergency and scheduled maintenance
The outer jacket of loop lead-in cable is typically made of: - CORRECT ANSWER -
Polyethylene
What device is used to measure the resistance or breakdown strength of conductor insulation: -
CORRECT ANSWER - Megohmmeter
Exam Questions and CORRECT Answers
What Are The Sections Of A Ramp Meter Signal? - CORRECT ANSWER - Circular red,
circular green
Which of the following are potential safety hazards? - CORRECT ANSWER - Overhead
and underground power, Gas, Aerial lift equipment
Which of the following is a type of microwave detector? - CORRECT ANSWER -
Frequency-modulated continuous wave (FMCW)
For pedestrians signals controlling crosswalks less than 100 feet, what is the required height of
the symbols themselves: - CORRECT ANSWER - At least 6 inches
The first type of test performed on a controller cabinet assembly is: - CORRECT
ANSWER - Bench test
Which of the following are considerations that should be taken into account when designing a
new traffic signal? - CORRECT ANSWER - Types of preemption required, Coordination
with nearby traffic signals, and Traffic characteristics at the location
What is NOT part of an underground power service? - CORRECT ANSWER - Conduit
riser with weatherhead
Two common types of signal pole installations are: - CORRECT ANSWER - Direct
buried and foundation
What is the advantage of video detection systems? - CORRECT ANSWER - Images can
be sent to remote locations
, Continuity is a type of test for: - CORRECT ANSWER - Traffic signal conductors
Typical back-up battery systems provide battery power in case of an outage to a signal for: -
CORRECT ANSWER - 2-6 hours
Two common terms to describe traffic signal support and signal heads are: - CORRECT
ANSWER - Rigid and Free-Swinging
When dealing with the public, a technician should: - CORRECT ANSWER - Avoid
arguing
The most labor intensive type of vehicle detection installed is: - CORRECT ANSWER -
Inductive loop detection
Which of the following is a disadvantage of mast arms: - CORRECT ANSWER - Large
foundations
The two nominal diameter sizes for vehicular signal lenses are: - CORRECT ANSWER -8
in (200 mm) and 12 in (300 mm)
The two types of traffic signal maintenance that are typically performed are: - CORRECT
ANSWER - Emergency and scheduled maintenance
The outer jacket of loop lead-in cable is typically made of: - CORRECT ANSWER -
Polyethylene
What device is used to measure the resistance or breakdown strength of conductor insulation: -
CORRECT ANSWER - Megohmmeter
