🔍 Key Concepts

• Rule 35 – Sound Signals in Restricted Visibility • The special sound signals for vessels engaged in fishing versus power-driven vessels underway • The meaning of prolonged blasts and short blasts in fog signals

💭 Think About

• First, recall what a power-driven vessel underway makes in restricted visibility. Then, think about how the signal for a vessel engaged in fishing is modified from that basic pattern. • Which of these options (if any) looks like the standard underway signal, and which looks like a special signal for a vessel with restricted maneuverability such as fishing? • Ask yourself: does a fishing vessel’s fog signal include extra short blasts compared to the normal underway signal, and if so, how many?

✅ Before You Answer

• Verify in Rule 35 the basic fog signal for a power-driven vessel making way (this helps you eliminate at least one wrong choice). • Check what Rule 35 says about vessels engaged in fishing and how many short blasts they add to the prolonged blast, if any. • Confirm that the required signal is sounded at intervals not more than 2 minutes, and then match that described pattern to one of the listed options.