Which instrument is commonly used to indicate cargo temperature during measurement?

• A. Thermometer
• B. Barometer
• C. Stopwatch
• D. Hygrometer

Answer: (A)

Temperature measurement of cargo is done with a thermometer. It directly indicates the actual temperature of the cargo or its surroundings, which is critical for preserving quality, preventing spoilage, and staying within safety limits during transport and storage. In maritime and tank operations, thermometers can be simple digital probes, dial thermometers, or part of a larger monitoring system that provides real-time temperature data. A barometer measures atmospheric pressure, not temperature; a stopwatch tracks elapsed time; a hygrometer measures humidity. Those instruments don’t provide the cargo’s temperature reading, so the thermometer is the appropriate choice for this purpose.