- Study guides, Class notes & Summaries

Work zone sign in rural area Clear Zone (Distance from sign to edge of traveled way) -Correct Answer 6 to 12 ft Work zone sign in business, commercial, or residential area with curb clear zone (Distance from sign to edge of traveled way) -Correct Answer 2 ft min Work zone sign in business, commercial, or residential area without curb clear zone (Distance from sign to edge of traveled way) -Correct Answer 6 to 12 ft Methods of mounting signs other than on posts -Correct Answer Flag tree,...

What is a signal phase? - A group of controller, timing intervals, and setting used to control one movement of traffic at a signalize intersection What traffic movements are even phases? - Thru movement What traffic movements are odd Phases? - Left term movements What is a ring? - Two or more sequentially time conflicting phases An 8 phase intersection has how many rings? - 2 What is a barrier? - An interlock in a multi-ring controller, or compatibility line, phases on one side of the bar...

What is the cheapest way to coordinate a corridor of signals? What needs to stay the same throughout the day? - Time based coordination, and cycle length. Explain the white walking man, the flashing orange hand on a ped head and how is this time figured? - The white walking man is the ped head walk interval, and the ped change clearance interval is the flashing orange hand. What makes up the green interval? - Initial green time, passage/extension/gap time, and max green time. At most inte...

Preemption operates in a hierarchy, what are the first two priorities 1 and 2? - Railroad and drawbridges Emergency vehicles have what number of priorities? - 3,4,5,6 What operates on the lower hierarchy 7-10? - Public transportation, buses, and light rail. What are four common types of EVP detectors? - GPS, radio frequency, acoustic and infrared If a damage ped button is not placing a call to the controller what should you do? - Place the ped on ped recall until repairs can be made Ped...

IMSA Level 1 Certification Exam Questions And Answers |Latest 2025 | Guaranteed Pass Where are you when you install alternating flashing 12" red lights? - AnswerAt a railroad crossing. Who determins the the standards on traffic control devices and sets the requirements for uniformity? - AnswerThe Manual on uniform traffic control devices, (MUTCD). What is the the voltage that a traffic signal cabinet needs to run all its components? - Answer120 volts AC Where are you when you come acr...

IMSA Test Questions & Answers

The work zone starts at the first advance warning sign; therefore where should the flagger stand when directing traffic in a TTC (work) zone? - ANSWER On the shoulder adjacent to traffic being controlled How many orange and black TTC signs should there be in each direction on a 2-way, 2-lane rural roadway? - ANSWER Three On a 2-lane, 2-way rural roadway what should TTC signage spacing be? - ANSWER 500 f

IMSA WORKZONE SAFETY ACTUAL QUESTIONS WITH VERIFIED ANSWERS | LATEST 2025/2026 GRADED A. Traffic control device should meet 5 basic requirements - correct answer fulfill a need command attention convey clear and simple meaning Command respect from road user give adequate time for response Mutcd is a - correct answer national standard for traffic control devices Tcc means - correct answer temporary traffic control Tcc primary function - correct answer move vehicles and pedestrians th...

IMSA Work-Zone Safety Exam Questions with Verified Solutions |Latest 2025/2026 Who has the primary responsibility for TTC and safety once work has begun? - Correct Answer the work supervisor The work zone starts at the first advance warning sign; therefore, where should the flagger stand when directing traffic in a TTC zone? - Correct Answer On the shoulder adjacent to traffic being controlled How many orange and black TTC signs should there be in each direction on a 2-way, 2-lane rur...

IMSA FIELD TECHNICIAN LEVEL I PRACTICE QUESTIONS AND VERIFIED ANSWERS| GRADE A| 100% CORRECT