🔍 Key Concepts

• Apparent wind vs. true wind on a vessel or MODU under tow • Instruments used to measure wind speed versus those that show wind direction • Standard bridge instruments: which ones measure temperature or pressure instead of wind?

💭 Think About

• First decide what quantity the question is asking for: is it speed, direction, temperature, or pressure? • Think about which common marine instrument actually gives you a numerical wind speed reading in knots or m/s. • Eliminate any options that are primarily used for direction, temperature, or atmospheric pressure rather than wind speed.

✅ Before You Answer

• Confirm which instrument is specifically designed to measure wind speed, not direction. • Verify that a wind vane is normally associated with direction, not speed. • Recognize that thermometers measure temperature and barometers measure atmospheric pressure, neither of which directly give wind speed.