Under the IALA Buoyage Systems, which is...

Question 1 / 2707066636ee928f7522a1c519919

Question 1 of 2707066636ee928f7522a1c519919

Under the IALA Buoyage Systems, which is TRUE of safe water marks?

Question 1 of 27070

Under the IALA Buoyage Systems, which is TRUE of safe water marks?

🔍 Key Concepts

• IALA Maritime Buoyage System differences between lateral marks and safe water marks • Characteristics (color, topmark shape, light color) of safe water marks • Understanding of light rhythms such as Morse (A), composite group-flashing, and quick-flashing patterns

💭 Think About

• First decide what a safe water mark looks like in day shape and color before thinking about its light characteristics—what is its main purpose? • Which light color is normally associated with safe water marks, and how does that differ from lateral marks (red/green)? • Among the listed light rhythms, which one is classically associated with a central, ‘all around safe’ area rather than a specific side of a channel?

✅ Before You Answer

• Verify the color of the light used on safe water marks in the IALA system • Confirm the typical light rhythm(s) allowed for safe water marks, including whether Morse (A) is one of them • Make sure you are not confusing the light characteristics of lateral marks (red/green, port/starboard) with those of safe water marks (mid-channel/safe water)

Question 1 of 27070

Under the IALA Buoyage Systems, which is TRUE of safe water marks?

They may show a composite group-flashing, Fl(2 + 1), red light

They must show a composite group-flashing, Fl(2 + 1), green light

They may show a quick-flashing, Q(9)15s, white light

They may show a white Morse (A) light

Question 1 / 2707066636ee928f7522a1c519919

Question 1 of 2707066636ee928f7522a1c519919

Under the IALA Buoyage Systems, which is TRUE of safe water marks?

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Question 1 of 27070

Under the IALA Buoyage Systems, which is TRUE of safe water marks?