Answers, 100% Verified Graded A+
1. How long flagger certification is valid
Answer: 3 years
2. TTC
Answer: Temporary Traflc Control
3. The quality or state of being conspicuous
Answer: Conspicuity
4. 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.
Answer: Traflc Control Devices
5. All 4 work zones must conform to these (4) standards
Answer: -MUTCD -Local -State -Comcast
6. (4) Typical Comcast traffic control devices
Answer: -Cones -Signs -Vehicle strobe -High visibility gar- ments
,7. (5) Principles of traffic control devices
Answer: -Fulfill a need -Command attention -Convey a clear, simple meaning -Command repect from road
users -Give adequate time for proper response
8. Score needed to pass the flagger written exam
Answer: 80 percent
9. This is where a Flagger should be standing at all times.
Answer: Shoulder by the fog/edge line.
10. These two kinds of crashes occur frequently near the taper and channeling
devices
Answer: Fixed Object & Sideswipe
11. Stop/Slow retroreflective paddles must be ----- wide, and letters ------ high.
Answer: 18" wide, 6" letters
12. Flaggers shall never flag from these (3) main areas.
Answer: -On/Under a Bridge -On/Under an overpass -In a vehicle
13. Retroreflective vests must be visible to this minimum distance.
Answer: 1000 ft
14. For nighttime flagging, this type of safety vest should be worn.
Answer: Class 3
, 15. 35.74 + .6215T - 35.75 (V0.16) + .4275T (V0.16)
Answer: Wind chill formula
16. The minimum mounting height from the roadway to the bottom of an
electric arrow panel.
Answer: 7'
17. For portable changeable message signs, the message being stated should
be visible for at least this minimum distance.
Answer: 650'
18. SPF
Answer: Sun Protection Factor
19. Sun block SPF 20 will offer this amount of time of sun block.
Answer: 400 minutes (20 X SPF #)
20. The distance between the flagging station and the work space should never
be less than away.
Answer: 50 ft