IALA Isolated Danger Marks — 9 practice questions — IALACOLREG

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Lights & Shapes Sound Signals

General1 2 3

Conduct in any condition of visibility4 5 6 7 8 9 10

Vessels in sight of one another11 12 13 14 15 16 17 18

Restricted visibility19

Lights and shapes20 21 22 23 24 25 26 27 28 29 30 31

Sound and light signals32 33 34 35 36 37

Exemptions38

Verification of compliance39 40 41

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