Question 1971Navigation General

70% to pass

Spring tides occur _______________.

A at the beginning of spring when the sun is over the equator
B when the moon and sun have declination of the same name
C only when the moon and sun are on the same sides of the earth
D when the moon is new or full
AI Explanation

The correct answer is D) when the moon is new or full. Spring tides occur when the gravitational pull of the sun and moon are aligned, either on the same side of the Earth (new moon) or on opposite sides of the Earth (full moon). This increased gravitational pull results in higher high tides and lower low tides, known as spring tides. The other answer choices are incorrect because they do not accurately describe the conditions that lead to spring tides.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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