Hearing a gong indicates the vessel is at least how many meters long?

Hearing a gong indicates the vessel is at least how many meters long?

• A. 50 m
• B. 100 m
• C. 200 m
• D. 10 m

Answer: (B)

Signals like a gong are used to communicate a vessel’s size to other boats in busy waterways. When a ship reaches 100 meters in length or more, a gong signal is used, so hearing it tells you the vessel is at least 100 meters long. Shorter vessels won’t reach that threshold, which is why the minimum length indicated by the gong is 100 meters. A vessel longer than 100 meters would also fit this, but the question asks for the minimum length that triggers the signal.

Signals like a gong are used to communicate a vessel’s size to other boats in busy waterways. When a ship reaches 100 meters in length or more, a gong signal is used, so hearing it tells you the vessel is at least 100 meters long. Shorter vessels won’t reach that threshold, which is why the minimum length indicated by the gong is 100 meters. A vessel longer than 100 meters would also fit this, but the question asks for the minimum length that triggers the signal.