USCG USCG GENNAV
Set 6 • Question #171 of 246
Launch Interactive Practice Room An alternating light __________.
A
shows a light with varying lengths of the lighted period
B
shows a light that changes color
✓ Correct Answer
C
marks an alternate lesser-used channel
D
is used as a replacement for another light
USCG NMC Regulatory Explanation
In USCG General Navigation principles (Bowditch, Light Lists, and Coast Pilots), regarding 'An alternating light', the verified fact is: 'shows a light that changes color'.
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...