🔍 Key Concepts

• Rule 33 – Equipment for sound signals (COLREGS/Navigation Rules) • Length categories for vessels: under 12 m, 12 m to under 20 m, 20 m to under 100 m, and 100 m and above • Which sound appliances (whistle, bell, gong) are required in each length range

💭 Think About

• First, decide which length category a 25-meter vessel falls into according to Rule 33 • Then, recall which specific appliances (whistle, bell, gong) are required for that length category • Consider whether a gong is only required above a certain length, and whether any vessel in this size range is allowed to carry no sound device at all

✅ Before You Answer

• Verify in Rule 33 the minimum equipment required for vessels 20 m and over but less than 100 m • Check if a bell becomes required at or above a specific length threshold • Confirm whether a gong is only required for vessels 100 m or more in length