IMSA Traffic Signal Technician Latest Update

IMSA Traffic Signal Technician Latest Update

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A 2' x 6' loop requires how many turns? - CORRECT ANSWER: 5

A 6' x 20' loop requires how many turns? - CORRECT ANSWER: 3

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

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

b. Data bus c. Size d. Color - CORRECT ANSWER: B

A work zone supervisor is responsible for which of the following tasks: a. Maintaining the project schedule B. Ensure advance warning devices have not been removed or relocated see. Enforce traffic laws in the work zone D. All of the above - CORRECT

ANSWER: B

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

intersection? - CORRECT ANSWER: The split

Components of the optical unit for an incandescent lamp include all of the following except: a lamp socket be. Shade see. Lens dear. Reflector - CORRECT ANSWER: B

For pedestrian signals controlling crosswalks less than 100 feet, what is the required

height of the symbol themselves? - CORRECT ANSWER: At least 6 inches

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

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In a single wire with a single point attachment configuration, the wire that supports the

signal heads is called the - CORRECT ANSWER: Messenger wire

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

Methods of signal supports include all of these except: a arch supports be. Trust

supports see. Monotube supports D. Pedestal supports - CORRECT ANSWER: A

PPE stands for: - CORRECT ANSWER: Personal protective equipment

The advanced transportation controller was developed to provide: a. NEMA standards be. 170 standards C. Open architecture hardware and software platform dear. Closed

architecture hardware and software platform - CORRECT ANSWER: C

The following faces are typically assigned to the major street through approaches: -

CORRECT ANSWER: 2 and 6

The green interval is made up of which three components? - CORRECT ANSWER:

Minimum green, passage time, maximum green

The only point in the cycle of a coordinated traffic signal controller were the major street

phase is allowed to end is called? - CORRECT ANSWER: Yield Point

The outer jacket of Loop lead in the cable is typically made of? - CORRECT ANSWER: Polyethylene

The piece of cable that connects the controller cabinet to the loops is called a? -

CORRECT ANSWER: Lead in cable

The primary function of the CMU is: a change signal indications be keep clock for signal see. Monitor signal operations D. Prevent conflicting signal egg indications - CORRECT

ANSWER: D

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