Oilers/Plant Tenders (HHC) Civil Service Exam 2026 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 440

Why should packing gland nuts be loosened after an overnight shutdown?

To increase pump efficiency

To prevent packing from becoming damaged due to pressure

Loosening packing gland nuts after an overnight shutdown is essential to prevent packing from becoming damaged due to pressure. When a pump is shut down, the pressure within the packing can remain high, creating a scenario where the packing material is compressed and held in a fixed position for an extended period. This continuous pressure can lead to deformation or wear of the packing material, which may ultimately result in leaks or reduced sealing effectiveness when the pump is restarted.

By loosening the gland nuts, you effectively relieve the pressure on the packing. This allows the material to relax and prevent any permanent deformation or damage that may compromise the pump's performance. It is a routine maintenance practice to ensure that the packing remains functional and extends the lifespan of the components involved.

Get further explanation with Examzify DeepDiveBeta

To ease the installation of new packing

To maintain steam pressure

Next Question

Report this question

Download Oilers/Plant Tenders (HHC) Civil Service Practice Exam PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy