Level Measurement Methods
17 Questions
0 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 is the principle behind the level measurement method based on hydrostatic pressure?

  • The height of the liquid head and the density of the liquid (correct)
  • The capacitance and conductance of the liquid
  • The buoyancy force and the surface tension of the liquid
  • The weight of the liquid and the atmospheric pressure

    • What is a limitation of the level measurement method based on static head pressure?

  • It is affected by changes in liquid density (correct)
  • It is susceptible to electromagnetic interference
  • It can only be used for liquids with high viscosity
  • It requires complex calibration procedures

    • Which of the following is an advantage of the level measurement method based on static head pressure?

  • It is highly sensitive to electromagnetic interference
  • It is only suitable for pressurized vessels
  • It has a wide range of measurement (correct)
  • It is highly accurate for liquids with varying densities

    • What type of sensor is commonly used in level measurement methods based on electrical properties?

    <p>Capacitance sensor</p> Signup and view all the answers

    What is the principle behind the level measurement method using displacer?

    <p>Buoyancy force</p> Signup and view all the answers

    What is the limitation of the capacitive measure in level measurement?

    <p>The dielectric constant of the fluid must remain constant</p> Signup and view all the answers

    Which type of level measurement is applicable for both conductive and nonconductive fluids?

    <p>Capacitive Measures</p> Signup and view all the answers

    What is the principle of operation of the Float Rotating Paddle Switch?

    <p>A small synchronized motor keeps the paddle in motion at very low speed</p> Signup and view all the answers

    What is the application of Load Cells in level measurement?

    <p>Measuring the stress in the sensing element</p> Signup and view all the answers

    What is the advantage of Conductive Electric level measurement?

    <p>It can provide differential level control</p> Signup and view all the answers

    Which type of level measurement is applicable for solid materials only?

    <p>Float Rotating Paddle Switch</p> Signup and view all the answers

    What is a key consideration for radar mounting in level measurement?

    <p>The sound path should be perpendicular to the monitored surface</p> Signup and view all the answers

    What is an advantage of ultrasonic level measurement?

    <p>It can measure the level without making physical contact with process material</p> Signup and view all the answers

    What is a limitation of ultrasonic level measurement?

    <p>It is not applicable if the vapour space of the material is dusty or contains foam</p> Signup and view all the answers

    What is an advantage of guided radar level measurement?

    <p>Changing vapour and foam has less effect than on ultrasonic type</p> Signup and view all the answers

    What is a limitation of guided radar level measurement?

    <p>It is not applicable for low-dielectric materials</p> Signup and view all the answers

    What type of level measurement is suitable for measuring the level of liquid interfaces?

    <p>Guided radar level measurement</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser