One disadvantage of using a mechanical shaft...

One disadvantage of using a mechanical shaft...

Question 1 of 270705eccef9bbacbc34ba4d45483

One disadvantage of using a mechanical shaft seal instead of mechanical packing is that __________.

Question 1 of 27070

Q

One disadvantage of using a mechanical shaft seal instead of mechanical packing is that __________.

🔍 Key Concepts

• difference between mechanical shaft seals and conventional packing glands • what typically happens when a mechanical seal fails compared to packing • maintenance and service requirements for pumps using mechanical seals

💭 Think About

• Think about how packing behaves when it starts to leak versus how a mechanical seal behaves when it fails. • Which option describes a consequence that would force you to stop the pump right away, instead of just tightening or adjusting something in place? • Consider which statements sound more like general limitations of the technology versus a specific operational disadvantage in day‑to‑day shipboard use.

✅ Before You Answer

• Verify whether mechanical seals are commonly used in high temperature and high pressure applications or not. • Ask yourself if packing or mechanical seals normally need frequent disassembly and adjustment. • Consider what kind of failure would leave you with no quick adjustment and require more serious work on the pump.