& Answers | 100% Verified solutions
latest update 2026!!
How long flagger certification is valid - correct answer3 years
TTC - correct answer Temporary Traffic Control
The quality or state of being conspicuous - correct answer Conspicuity
All signals, marking, and other devices used to regulate, warn, or guide traffic, placed
on, over, or adjacent to a street, highway, or bikeway by authority of a public agency
having jurisdiction. - correct answer Traffic Control Devices
All 4 work zones must conform to these (4) standards - correct answer-MUTCD -
Local -State -Comcast
(4) Typical Comcast traffic control devices - correct answer-Cones -Signs -Vehicle
strobe -High visibility garments
(5) Principles of traffic control devices - correct answer-Fulfill a need -Command
attention -Convey a clear, simple meaning -Command respect from road users -Give
adequate time for proper response
Score needed to pass the flagger written exam - correct answer80 percent
, This is where a Flagger should be standing at all times. - correct answer Shoulder
by the fog/edge line.
These two kinds of crashes occur frequently near the taper and channeling devices -
correct answer Fixed Object & Sideswipe
Stop/Slow retroreflective paddles must be ----- wide, and letters ------ high. - correct
answer18" wide, 6" letters
Flaggers shall never flag from these (3) main areas. - correct answer-On/Under a
Bridge -On/Under an overpass -In a vehicle
Retroreflective vests must be visible to this minimum distance. - correct answer1000
ft
For nighttime flagging, this type of safety vest should be worn. - correct answer
Class 3
35.74 + .6215T - 35.75 (V0.16) + .4275T (V0.16) - correct answer Wind chill formula
The minimum mounting height from the roadway to the bottom of an electric arrow
panel. - correct answer7'
For portable changeable message signs, the message being stated should be visible for
at least this minimum distance. - correct answer650'
SPF - correct answer Sun Protection Factor