& ANSWERS VERIFIED FOR 2025
what stripes does a safe water mark non radar have - correct
answers ✔✔6 alternating red and white vertical stripes
what type of buoys are used for preferred channel buoys -
correct answers ✔✔1962 type buoys
what type of buoys are used for intracoastal markings - correct
answers ✔✔dual purpose buoys
When should buoys be repainted or cleaned - correct answers
✔✔cuts over 6 inches
if more then 25% of area is obscured (growth)
Retro white numerals on buoys not to exceed.. - correct answers
✔✔not to exceed 16 inches
,retro panel specs on buoys not to exceed... - correct answers
✔✔not to exceed 6 inch width
What type of letters do special aid marks use - correct answers
✔✔black letters not to exceed 16 in
specs of CG mooring buoys - correct answers ✔✔white with a
blue band. 3 sets of black CG characters
Describe Western Rivers left descending marks - correct
answers ✔✔red
no letters or numbers
describe info/regulatory mark - correct answers ✔✔white with
orange retro bands
open diamond - correct answers ✔✔danger area
cross centered diamond - correct answers ✔✔exclusion area
,open circle - correct answers ✔✔controlled area
who requires an annual inspection of watched aids - correct
answers ✔✔district commander
tolerance for light - correct answers ✔✔+/- 6% or 3.6 seconds
per min
what is a discrepancy buoy - correct answers ✔✔temp buoy that
provides less signal than authorized
how long can steel and plastic/foam buoys remain on station -
correct answers ✔✔steel- min 6 years
foam/plastic - as long as they can be maintained
servicing for light aids on fixtures - correct answers ✔✔routine
services not to exceed 3 years
servicing on unlighted aids on fixed structures - correct answers
✔✔not to exceed 5 years. Variation up to 3 months to coordinate
servicing trips
, how often should fixed aids with special equipment be visited -
correct answers ✔✔semi annually
how often should each waterway be visited - correct answers
✔✔annually - check aids and run ranges
components on aids should be maintenance free for
__________months - correct answers ✔✔36
how often should buoys be maintenanced - correct answers
✔✔every 3 years, inspected annually
what are major aton structure - correct answers ✔✔one of a kind
minor aton range structure - correct answers ✔✔wood, concrete,
steel
CG 3213 - correct answers ✔✔aids to navigation operation
request
justify and authorize changes