Questions Latest Update -

IMSA Signal Technician Level 1 End of Chapter Questions Latest Update - with 160 Questions and 100% Verified Correct Answers Guaranteed A+ At First Attempt Verified By Professor

"Free-swinging" signal heads are located on which of the following support systems: -

CORRECT ANSWER: Span wires

A 6' X 60' loop typically has how many turns of wire: - CORRECT ANSWER: Two

A good five step procedure for troubleshooting is: - CORRECT ANSWER: Observe, identify, determine, correct, observe again

A key component of documentation is: - CORRECT ANSWER: -Developing written procedures for documentation -Developing checklists -Developing field reports

A major distinguishing feature between NEMA TS-1 and TS-2 controllers is: -

CORRECT ANSWER: Data bus

A Plans Preparation Manual Includes information regarding: - CORRECT ANSWER: Amount of detail, information, and proper format for traffic signal plans.

A traffic signal warrant study can determine the need of installation through all of the following except: - CORRECT ANSWER: Y: Traffic volumes that show insufficient gaps exist on the major street to allow minor street traffic to enter or cross an intersection

N: Road users at an intersection submitting a sufficient number of requests for

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Y: Pedestrian volumes indicate a need in order to allow safe crossing of a roadway.Y: Historical crash data shows that a signal would potentially improve safety conditions.

An example of emergency maintenance is: - CORRECT ANSWER: Power outages/surges due to electrical storm

Checking for inconsistent indications, local construction activities, and if the signal is in flashing mode would be an example of which of the four steps in the troubleshooting procedure: - CORRECT ANSWER: Observe

Components of the optical unit for an incandescent lamp include all of the following except: - CORRECT ANSWER: Y: Lamp socket

N: Shade

Y: Lens

Y: Reflector

Continuity is a type of test for: - CORRECT ANSWER: Traffic signal conductors

Crashes occur at signalized intersections due to: - CORRECT ANSWER: Driver error Vehicle equipment malfunction Roadway or traffic control device defects

EEO participation requires the contractor to: - CORRECT ANSWER: Maintain a percentage of minority workers on the project.

For pedestrian signals controlling crosswalks less than 100 feet, what is the required height of the symbols themselves: - CORRECT ANSWER: At least 6 inches

IMSA stands for: - CORRECT ANSWER: International Municipal Signal Association

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In a coordination plan, what is the number of seconds given to each phase at the

intersection? - CORRECT ANSWER: Split (g,y,r)

In a single wire with a single point attachment configuration, the wire that supports the signal head is called the: - CORRECT ANSWER: Messenger wire

In case of the perceived need for a traffic signal to allow pedestrians to cross a roadway, pedestrian volume counts are typically performed for what time duration? - CORRECT

ANSWER: 8 hours

Loop detectors operate on the principle of: - CORRECT ANSWER: Inductance

Methods of signal supports include all of these except: - CORRECT ANSWER: N: Arched supports

Y: Truss supports

Y: Monotube supports

Y: Pedestal supports

Multimeters are used to check: - CORRECT ANSWER: Resistance Voltage Current

Negligence is defined as: - CORRECT ANSWER: The failure to do something that a reasonable person would ordinarily do

Ohm's law is useful in the design and troubleshooting of circuits and describes the mathematical relationship of the following: - CORRECT ANSWER: Voltage Current Resistance

PPE stands for: - CORRECT ANSWER: Personal Protective Equipment

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