Recent Lessons

Show all results for ""

Level Measurement Methods

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?

Capacitance sensor (C) Signup and view all the answers

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

Buoyancy force (A) Signup and view all the answers

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

The dielectric constant of the fluid must remain constant (A) Signup and view all the answers

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

Capacitive Measures (C) Signup and view all the answers

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

A small synchronized motor keeps the paddle in motion at very low speed (C) Signup and view all the answers

What is the application of Load Cells in level measurement?

Measuring the stress in the sensing element (B) Signup and view all the answers

What is the advantage of Conductive Electric level measurement?

It can provide differential level control (B) Signup and view all the answers

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

Float Rotating Paddle Switch (A) Signup and view all the answers

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

The sound path should be perpendicular to the monitored surface (A) Signup and view all the answers

What is an advantage of ultrasonic level measurement?

It can measure the level without making physical contact with process material (A) Signup and view all the answers

What is a limitation of ultrasonic level measurement?

It is not applicable if the vapour space of the material is dusty or contains foam (D) Signup and view all the answers

What is an advantage of guided radar level measurement?

Changing vapour and foam has less effect than on ultrasonic type (A) Signup and view all the answers

What is a limitation of guided radar level measurement?

It is not applicable for low-dielectric materials (A) Signup and view all the answers

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

Guided radar level measurement (B) Signup and view all the answers

Flashcards are hidden until you start studying