🔍 Key Concepts

• Stuffing box function and purpose on pumps • How packing is cooled and lubricated during normal operation • Why a small, controlled leakage is often allowed past packing

💭 Think About

• Which choice describes something that happens continuously during operation, not just once during installation? • Which method would reach all sides of the rotating shaft without complicated hardware? • In real machinery spaces, what do engineers normally look for at a packing gland: perfectly dry, heavy grease, or a slight drip?

✅ Before You Answer

• Verify which option would provide ongoing lubrication and cooling while the pump is running. • Eliminate any method that only occurs one time instead of continuously. • Think about what chief engineers are trained to adjust: the packing gland to get a small, steady drip, or to keep it completely dry.