🔍 Key Concepts

• Rule 35 – Sound signals in restricted visibility (Navigation Rules) • Difference between a power-driven vessel making way and a vessel stopped but not making way • Which sound signals are used for overtaking / maneuvering versus fog signals

💭 Think About

• First, recall what sound a power-driven vessel underway and making way must give in fog, and how often it must be repeated. • Then, think about which of the listed options matches the standard fog signal for a power-driven vessel making way, not stopped, not engaged in special operations. • Compare the options that use a single prolonged blast versus those that add short blasts, and ask: when are those extra short blasts normally required?

✅ Before You Answer

• Verify in Rule 35 what the requirement is for a power-driven vessel making way in or near an area of restricted visibility. • Check that the signal you choose is repeated at the correct interval (every two minutes vs. another timing). • Confirm that options with additional short blasts are actually used for other vessel statuses (e.g., not under command, restricted in ability to maneuver, towing), not just a normal power-driven vessel making way.