USCG USCG GENNAV
Set 7 • Question #210 of 246
Launch Interactive Practice Room An important lunar cycle affecting the tidal cycle is called the nodal period. How long is this cycle?
A
16 days
B
18 days
C
6 years
D
19 years
✓ Correct Answer
USCG NMC Regulatory Explanation
In USCG General Navigation principles (Bowditch, Light Lists, and Coast Pilots), regarding 'An important lunar cycle affecting the tidal cycle is called the nodal period. How long is this cycle', the verified fact is: '19 years'.
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