IMSA Traffic Signal Technician II Latest Update

IMSA Traffic Signal Technician II Latest Update

• 200 Questions and

100% Verified Correct Answers Guaranteed A+ At First Attempt Verified By Professor

A forerunner of the electronic controllers that we have today was the? - CORRECT

ANSWER: Electro-mechanical controller

A microprocessor takes appropriate action to control intersection what? - CORRECT

ANSWER: Timing

A multi-meter provides the ability to measure?(3) - CORRECT ANSWER: DC and AC

voltage DC and AC current Resistance

A split includes what three things associated with the phase? - CORRECT ANSWER:

Green time Yellow time Red time

A standard multi-meter includes what three main measurement features? - CORRECT

ANSWER: Voltage

Current Resistance

Advanced loops are usually square point loop detectors that are placed? - CORRECT

ANSWER: Upstream from the stop line

Ammeters are also known as?(5) - CORRECT ANSWER: Clamp-on ammeter 1 / 3

Amprobe Clamp meter Current probe Tong tester

An inductive loop assembly consist of? - CORRECT ANSWER: Detector amplifier

Lead in cable Insulated loop wire Shallow slot sawed in pavement

An intersection that has four through phases and four protected left-turn phases is said

to be an "what" intersection? - CORRECT ANSWER: Eight-phase

An intersection will remain in flash mode until the monitor unit is? - CORRECT

ANSWER: Reset

Analog multi-meter functions:(3) - CORRECT ANSWER: Low impedance Fast meter reaction time(measurement time) Provides a quick go or no-go indication

As sensitivity is increased a loop detector has a tendency to do what? - CORRECT

ANSWER: "Lock" or place a constant call

Battery backup system manufactures claim that switching to red flashing operation at "what battery" level percent significantly extends run time? - CORRECT ANSWER: 40%

Because of the sensitivity to impedance variations, a TDR may be used to: (3) -

CORRECT ANSWER: Verify cable impedance characteristics

Splice and connector locations Estimate cable lengths 2 / 3

Bucket trucks may have a boom that is capable of rotating and extending which is

called? - CORRECT ANSWER: Articulating boom

Controllers typically have what two types of ring operation? - CORRECT ANSWER:

Single Dual

Define TDR? - CORRECT ANSWER: Time domain reflectometer

Define the acronym NTCIP - CORRECT ANSWER: National Transportation

Communications for Intelligent transportation systems Protocol

Describes the direction of approach and the maneuver made at the intersection? -

CORRECT ANSWER: (Vehicle) Movement

Dial-up modems provide what in relation to the transition of data? - CORRECT

ANSWER: Reliability

Efficiency

Digital multi-meter functions:(5) - CORRECT ANSWER: High input impedance Automatic ranging of measurements Automatic polarity identification Sample and hold circuitry Provides a greater number of testing functions

Each vehicular phase is usually comprised of three specific intervals: - CORRECT

ANSWER: Green interval

Yellow change interval Red clearance interval

• / 3