Valliammai Engineering College EI2303-Industrial Instrumentation -2 Department of EIE

Question bank

Unit I

Part A

1. Mention the different types of orifice plate.

2. What is the quantity meter?

3. Write down the types of variable area flow meter.

4. What are the factors to be considered while selecting a flow meter?

5. What are the advantages of using venturi meter as a restriction element?

6. What is dall tube?

7. List the different closed channel flow meter.

8. What are the advantages of orifice over venturimeter?

9. Write down any two applications of pitot tube.

10. What is Vena contracta point?

11. Mention any 2 advantages of Rotameter over Orifice meter

12. What is turbulent flow?

13. What is meant by Reynolds number?

14. How Reynolds number related to laminar and turbulent flow?

15. Define Discharge Coefficient?

16. Define the term Velocity approach factor in fluid flow measurement?

17. Give the advantages of Rotameter?

18. What is the disadvantage of Turbine mass flow meter?

19. What is laminar flow?

20. List the different unit of flow.

Part B

1. Describe with neat sketch the construction and working of variable head type flow meter.

Also, derive an expression for incompressible fluids.

2. Discuss the machining methods and tapping in orifice flow meter.

3. Describe with neat sketch the construction and working of pitot tube. Also, discuss its

advantages and disadvantages.

4. Describe with neat sketch the construction and working of rotameter. Also, discuss its

advantages and disadvantages.

5. a, What are the factors to be considered in piping arrangement for flow meter. (8 Mark)

b, Explain the principles and operation of elbow meter. (8 Mark)

6. With a neat diagram, explain the construction of different types of venture tube and

discuss about its installation.

7. Explain the installation and piping arrangement for different type of fluid.

8. Describe the construction, working principle of dall tube and also mention its advantages

and disadvantages.

9. Distinguish between variable head and variable area flow meter. List the application

notes for flow meter.

10. Describe with neat sketch any two closed channel flow meter. Also, derive an expression

for compressible fluids

Unit II

Part A

1. What is meant by Positive displacement meter?

2. What is meant by calibration of flow meter?

3. What is the principle behind the inferential flow meter?

4. Which device used for water service measurement?

5. Stat the principle of Nutating Disc

6. What is differential pressure transmitter?

7. Mention some positive displacement meter.

8. What is the different type’s thermal flow meter?

9. What is meant by Area flow meter?

10. How area flow meter is differ from differential flow meter?

11. Write down the classification of flow meters.

12. What is inferential flow meter?

13. What is the principle of turbine flow meter?

14. Does the operation of the turbine flow meter depend on liquid characteristics?

15. Write short notes on pitot rotameters.

16. Write short notes on purge rotameters

17. What is variable area orifice meter?

18. Name the methods used in calibration of liquid flow meters

19. Name the methods used in calibration of gas flow meters

20. List the application of flow meter.

Part B

1. .Write notes on the following types of positive displacement meters.

a. Nutating disc type.

b. Oval gear type.

2. Write notes on the following types of positive displacement meters.

a. Reciprocating piston.

b. Oval gear and helix type.

3. What is the principle used in turbine flow meter? Explain a typical mass flow meter used

in practice with necessary sketches and equation. Discuss the limitation of the same

4. Explain the principle and working of electromagnetic flow meter?

5. Explain with neat sketches of dynamic weighing methods for calibration of flow meter.

6. With suitable diagram, explain how rota meter is used to measure the flow rate of fluids.

7. Explain the construction and working of Thermal mass flow meter

8. Explain the principle, working, features and advantages of Coriolis mass flow meter

9. Explain the impeller turbine flow meter and the calibration of different flow meters.

10. Explain in detail about liquid flow rate meters calibration

Unit III

Part A

1. Give the principle of vortex shedding flow meter.

2. Name the commonly used methods for solid flow rate measurement.

3. List the limitations of electromagnetic flow meter.

4. List the different types of ultrasonic flow meter.

5. List two precautions to be taken while using electromagnetic flow meter.

6. Define Doppler Effect.

7. List the advantages of electromagnetic flow meter.

8. Explain the concept of ultrasonic flow meter.

9. What is meant by target Flow meter?

10. List the disadvantages of heat transfer flow meter

11. Write the frequency formula used in laser Doppler Anemometer

12. Compare the dc and ac excitation used in electromagnetic flow meter

13. State the principle used in Laser Doppler Anemometer

14. List the advantages of Laser Doppler Anemometer

15. Will you recommend DC supply to the electromagnet of a magnetic flow meter

Carrying mercury?

16. What is a flow switch?

17. List the salient features of ultrasonic flow meter.

18. List the advantage of ultrasonic flow meter.

19. What is a Swirl meter?

20. What are the methods used to measure flow in open channel flow meter?

Part B

1. a. Explain the operation of thermal mass flow meter with neat sketch

b. List the factors on which selection of flow meter depends

2. .Explain the principle working, construction of electromagnetic flow meter and target

flow meter with neat sketch.

3. With neat sketch explain the construction and working of Laser Doppler Anemometer

and transit time Ultrasonic flow meter.

4. Explain the operation of Ultrasonic mass flow meter with neat sketch

5. Explain the operation of Target flow meter (8)

6. Explain any two types of ultrasonic flow meter.(8)

7. Explain about solid flow measurements

8. List the guidelines for selection of flow meter

9. Explain in detail about the open channel flow meter.

10. Explain in detail about the cross correlated ultrasonic flow meter.

Unit IV

Part A

1. What are the limitations of flow type level measurement system?

2. Is it possible to measure the level of liquid in closed vessel by using DP cell?

3. What is a reed switch?

4. Where is a thermal level gauge suitable? State the limitations of float type level

indications.

5. List out some indirect method of level measurement.

6. What are the advantages of displacer level instrument?

7. Why is air purge method so popular in industrial liquid level measurement?

8. Draw the setup of liquid level measurement for non-conducting liquids with equivalent

circuit with a capacitive type level sensor.

9. Mention the advantages of float type level measurement system.

10. State the limitations of float level indication

11. What is a slight glass?

12. Name two commonly used electrical methods for measuring liquid level in industries.

13. State the principle of float type level gauge.

14. What device is suitable for measuring level for corrosive and abrasive liquids?

15. Discuss about the any one type of capacitor probe.

16. Draw the tilt switch arrangement for measurement of level for liquid and solid.

17. Explain about the micro level switch..

18. Discuss diaphragm box type of level measuring systems.

19. List the types of level gauges

20. What is meant by differential pressure level detector?

Part B

1. Explain in detail about displacer type and ultrasonic level measurement

2. Discuss the electrical types of level measurement and magnetic level gauge with neat

sketch

3. Discuss the principle of operation of bubbler type and diaphragm box type level

measurement

4. Explain in detail about hydrostatic type level measurement method and two float type

viscometer Explain the capacitance type level measurement

5. Explain the boiler drum level measurement

6. a. Explain the use of displacer in the measurement of level

b. Explain the ultrasonic method of level measurement along with the merits and

demerits.

7. With a neat sketch, explain how level measured using nuclear radiation is.

8. List the non-contact type of level measurement system. Explain with neat sketch the

working construction of any two of them..

9. a. Describe the working of displacer type of level measurement.

b. Discuss about the level sensors selection and applications.

10. Describe the construction and working principle of resistance type and capacitance type

level gauge.

Unit V

Part A

1. Define moisture.

2. What are the advantages of psychrometer?

3. What is dry and wet bulb psychrometer?

4. What is Dew cell?

5. Differentiate Newtonian and non-Newtonian fluids.

6. Which device is suitable for measuring the level of corrosive and abrasive liquids?

7. Define relative humidity of the substance.

8. What is meant by dew-point temperature?

9. What is meant by hydro step system?

10. Define relative viscosity.

11. What are different types of viscometer?

12. What is a psychrometer?

13. What do you mean by the term consistency?

14. Differentiate kinematic viscosity from specific viscosity.

15. What do you mean by the term consistency in viscosity meter?

16. Define dew point temperature.

17. Why viscosity measurement important for industrial process?

18. Define poise.

19. Define dynamic viscosity.

20. Define fluidity and relative humidity.

Part B

1. Explain the principle of humidity measurement. Explain the working principle of any one

type of hygrometer with neat sketch

2. Discuss the principle of operation of different methods of moisture measurement

3. .Explain the working principle of any two type of hygrometer for humidity measurement

with neat sketch

4. Explain in detail about dry and wet bulb psychrometer.

5. With block diagram explain the measurement of moisture measurement using distillation

method

6. Explain in detail about commercial type dew point meter and rotameter type viscometer

with a neat sketch.

7. Discuss about hydra step method for humidity measurement and nuclear method of level

measurement

8. With neat sketch explain consistency meters

9. Explain how moisture is measured in granular materials and solid penetrable materials

10. With neat sketch explain saybolt universal viscometer and moisture measurement in

paper/textile industry. .

*****************************************************************************