Nicet Level 3 Study Set Question and
answers rated A+ 2025/2026
How are lights and luminaires controlled? - correct answer ✔By a PhotoCell Control and for circuits
operating at less than 10 amps, a Photocell switch is used
What are the three types of inspection? - correct answer ✔Initial, Interim and routine
How many times per foot should loop wires be twisted? - correct answer ✔5 twists per foot
How wide should loops be cut and at what depth? - correct answer ✔5/16th Wide and 1 3/4" deep
what should be installed on loops wires they cross a crack or joint? - correct answer ✔A plastic sleeve
that extends 4" past the joint/crack.
How should spare signal conductors be arraigned inside the box? - correct answer ✔Spare conductors
should be connected to a terminals. unused
What should happen prior and during the installation of loops wires? - correct answer ✔1. Clean saw
cuts and remove debris by means of sandblasting, water blasting or wire brushing
2. Do not allow vehicles to drive over open cuts
3. Utilized plastic sleeves between joints
How is loop wire required to be placed? - correct answer ✔continuously
What is placed ontop of continuous loop wires? - correct answer ✔2' long Backer Rod
,What is the required wire slack amount left inside of pull box? - correct answer ✔Minimum of 36"
How long until subjected live load can be applied to anchor bolts? - correct answer ✔Until concrete
meets it required 28 day strength
What type of pattern is recommended when tightening bolts? - correct answer ✔The Star Pattern
Prior to erection of traffic lights, What are the elements an inspector is looking for? - correct answer
✔1.Bent or damaged parts
2. damaged coatings
3. Distortions
4. defective fabrication
What elements of a traffic light assembly should be inspected prior to erection? - correct answer
✔1.Posts
2. End Frames
3. Mast arms
4. Trusses
How can light poles be erected? - correct answer ✔Light poles and light supports can be assembled
from the ground if they contain a short cantilevered arms.
What are the inspection types for welds? - correct answer ✔Magnetic Particle testing (MT) and dye-
penetrant (PT) testing or ultrasonic testing
What should be provided if conduit crosses a structural joint? - correct answer ✔Metal expansion and
deflection fittings
, What is the dimensions of the copper clad steel rods? - correct answer ✔Rods should be 5/8th thick
and 8' long.
What are the size of micropiles? - correct answer ✔Typically less than 12"
What is the size of driven piles? - correct answer ✔Between 12 and 36"
What is the required surface temperature for painting a bridge? - correct answer ✔Surface temps must
be between 50 and 100 degrees
When painting a bridge, what must be the humidity percentage be? - correct answer ✔85% or less
unless manufactures recommendations say otherwise
When cleaning unsound paint, how far into the intact coat should you be? - correct answer ✔Extend
the prepared area at least 2 inches into adjacent tightly adhering, intact coating.
When should primer be applied when painting a bridge? - correct answer ✔. Only where paint is
removed to bare metal. Otherwise, apply only intermediate and finish paints
What do the color bonnets on fire hydrants mean? - correct answer ✔Light Blue - 1,500GPM or above
Green: 1000-1499GPM
Orange: 500 - 999GPM
Red: Less than 500 GPM
What should be done to inoperable fire hydrants? - correct answer ✔Fire hydrants should be wrapped
or parts on the hydrant color black
answers rated A+ 2025/2026
How are lights and luminaires controlled? - correct answer ✔By a PhotoCell Control and for circuits
operating at less than 10 amps, a Photocell switch is used
What are the three types of inspection? - correct answer ✔Initial, Interim and routine
How many times per foot should loop wires be twisted? - correct answer ✔5 twists per foot
How wide should loops be cut and at what depth? - correct answer ✔5/16th Wide and 1 3/4" deep
what should be installed on loops wires they cross a crack or joint? - correct answer ✔A plastic sleeve
that extends 4" past the joint/crack.
How should spare signal conductors be arraigned inside the box? - correct answer ✔Spare conductors
should be connected to a terminals. unused
What should happen prior and during the installation of loops wires? - correct answer ✔1. Clean saw
cuts and remove debris by means of sandblasting, water blasting or wire brushing
2. Do not allow vehicles to drive over open cuts
3. Utilized plastic sleeves between joints
How is loop wire required to be placed? - correct answer ✔continuously
What is placed ontop of continuous loop wires? - correct answer ✔2' long Backer Rod
,What is the required wire slack amount left inside of pull box? - correct answer ✔Minimum of 36"
How long until subjected live load can be applied to anchor bolts? - correct answer ✔Until concrete
meets it required 28 day strength
What type of pattern is recommended when tightening bolts? - correct answer ✔The Star Pattern
Prior to erection of traffic lights, What are the elements an inspector is looking for? - correct answer
✔1.Bent or damaged parts
2. damaged coatings
3. Distortions
4. defective fabrication
What elements of a traffic light assembly should be inspected prior to erection? - correct answer
✔1.Posts
2. End Frames
3. Mast arms
4. Trusses
How can light poles be erected? - correct answer ✔Light poles and light supports can be assembled
from the ground if they contain a short cantilevered arms.
What are the inspection types for welds? - correct answer ✔Magnetic Particle testing (MT) and dye-
penetrant (PT) testing or ultrasonic testing
What should be provided if conduit crosses a structural joint? - correct answer ✔Metal expansion and
deflection fittings
, What is the dimensions of the copper clad steel rods? - correct answer ✔Rods should be 5/8th thick
and 8' long.
What are the size of micropiles? - correct answer ✔Typically less than 12"
What is the size of driven piles? - correct answer ✔Between 12 and 36"
What is the required surface temperature for painting a bridge? - correct answer ✔Surface temps must
be between 50 and 100 degrees
When painting a bridge, what must be the humidity percentage be? - correct answer ✔85% or less
unless manufactures recommendations say otherwise
When cleaning unsound paint, how far into the intact coat should you be? - correct answer ✔Extend
the prepared area at least 2 inches into adjacent tightly adhering, intact coating.
When should primer be applied when painting a bridge? - correct answer ✔. Only where paint is
removed to bare metal. Otherwise, apply only intermediate and finish paints
What do the color bonnets on fire hydrants mean? - correct answer ✔Light Blue - 1,500GPM or above
Green: 1000-1499GPM
Orange: 500 - 999GPM
Red: Less than 500 GPM
What should be done to inoperable fire hydrants? - correct answer ✔Fire hydrants should be wrapped
or parts on the hydrant color black
