CA Flagger Night and Low-Visibility Flagging

Question 1

What class of high-visibility apparel does California require flaggers to wear during nighttime operations?

Accepted Answer

Class 3

Answer

ANSI/ISEA 107 Class 3 garments provide the highest visibility at night due to increased background and retroreflective material requirements.

Question 2

During nighttime flagging, the STOP/SLOW paddle should be:

Accepted Answer

Retroreflective or illuminated

Answer

Retroreflective or illuminated paddles ensure drivers can clearly see the flagger's signals in the dark.

Question 3

The minimum illumination level required at a California nighttime flagger station is:

Accepted Answer

1 foot-candle

Answer

California standards require a minimum of 1 foot-candle of illumination at nighttime flagger stations to ensure worker and driver safety.

Question 4

When flagging at night, advance warning signs should feature:

Accepted Answer

High-intensity retroreflective sheeting

Answer

High-intensity retroreflective sheeting ensures advance warning signs are highly visible when illuminated by vehicle headlights at night.

Question 5

At night, channelizing devices such as cones and drums must be:

Accepted Answer

Retroreflective or equipped with lights

Answer

Retroreflective or illuminated channelizing devices are required at night so drivers can clearly see the boundaries of the work zone.

(CA Flagger) California Flagger Exam Practice Test