Industrial Plant Maintenance Tasks
10 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What should be done if the gauge glass cannot be suitably isolated?

  • Depressurize the piping around the valve before tightening (correct)
  • Proceed with the tightening of the valve packing
  • Close the steam side isolation valve first
  • Tighten the valve packing nuts immediately
  • What is the caution regarding tightening packing or valve bonnet gaskets?

  • Depressurize the pipework around the valve before tightening (correct)
  • Tighten the nuts unevenly to avoid distortion
  • Ensure the gland remains parallel to the stem
  • Only tighten the gland if the packing is completely compressed
  • What should be ensured when tightening the gland of a valve with a leaking stem?

  • Tighten the nuts unevenly for better sealing
  • Completely compress the packing to ensure no leakage
  • Use a random pattern for tightening
  • Ensure the gland remains perpendicular to the stem (correct)
  • What is the purpose of using a cross bolting pattern when dealing with a leak on the bonnet or flange?

    <p>To ensure even tightening and prevent distortion and further leakage</p> Signup and view all the answers

    What should be avoided when tightening the packing gland of a centrifugal pump?

    <p>Stopping the leakage completely</p> Signup and view all the answers

    What is the purpose of blowing down drip legs in a steam system?

    <p>To remove excess accumulations of condensate</p> Signup and view all the answers

    When repairing gauge glass valve stem leaks, why should the boiler water level control system be checked?

    <p>To ensure proper functioning and automatic control</p> Signup and view all the answers

    What should be done before repairing gauge glass valve stem leaks while the boiler is on-line?

    <p>Ensure the boiler water level control system is functioning correctly</p> Signup and view all the answers

    Why is it necessary to close the steam side gauge glass isolation valve when repairing gauge glass valve stem leaks?

    <p>To prevent steam from passing through the valve packing</p> Signup and view all the answers

    What is the primary purpose of opening the gauge glass drain when repairing gauge glass valve stem leaks?

    <p>To depressurize the gauge glass</p> Signup and view all the answers

    Study Notes

    Gauge Glass Valve Stem Leaks

    • If the gauge glass cannot be suitably isolated, alternative arrangements must be made to ensure safe repair.
    • When tightening packing or valve bonnet gaskets, be cautious not to overtighten, as this can cause damage to the gasket or surrounding material.

    Valve Repair

    • When tightening the gland of a valve with a leaking stem, ensure the stem is central and not rotated during the process.
    • A cross-bolting pattern is used when dealing with a leak on the bonnet or flange to ensure even pressure and prevent further damage.

    Centrifugal Pump Maintenance

    • When tightening the packing gland of a centrifugal pump, avoid using excessive force, as this can damage the pump shaft or surrounding components.

    Steam System Maintenance

    • The purpose of blowing down drip legs in a steam system is to remove any accumulated condensate and sediment.

    Boiler Repair Precautions

    • When repairing gauge glass valve stem leaks, the boiler water level control system should be checked to ensure proper function and safety.
    • Before repairing gauge glass valve stem leaks while the boiler is on-line, the steam side gauge glass isolation valve must be closed to ensure safe working conditions.
    • The primary purpose of opening the gauge glass drain when repairing gauge glass valve stem leaks is to allow for safe drainage and prevent further damage.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Learn about common maintenance tasks for operators in industrial plants, including blowing down drip legs, repairing gauge glass leaks, and assessing packing leaks. This quiz covers routine maintenance activities and their importance in plant maintenance.

    More Like This

    Boiler Plant Checks
    176 questions
    4BE3.5 U4 C4 Obj 1 EMH
    168 questions
    4BE3.5 U4 C6 Obj 2 EMH
    84 questions
    4BE3 U5 C3 Obj 3 EMH
    42 questions
    Use Quizgecko on...
    Browser
    Browser