Sensors and Transducers (A12) – Calicut University BSc/BCA Model Question Paper with Answer Key

SECTION A

[Answer any 10 questions]
[Each question carries 2 marks]

1. Define a sensor?
2. What do you mean by a passive transducer?
3. What is the basic principle of a resistance transducer?
4. Define the capacitance between two plates.
5. What are the temperature sensors?
6. What are the commonly used materials in a Resistance Temperature Detector?
7. What are the common types of thermocouple materials?
8. What is absolute pressure?
9. What is manometric fluid?
10. What is a sound level meter?
11. Expand LDR.
12. What is the flow meter?
13. List any four types of level transducers.
14. Define pressure.
15. What is the difference between accuracy and precision?

SECTION B

[Answer any 8 questions]
[Each question carries 5 marks]

1. What is the working principle of the photovoltaic cell?
2. What are the requirements of a sensor?
3. Explain the potentiometer and loading effect.
4. Explain the working principle of inductive transducers.
5. Explain the operation of LVDT.
6. Differentiate between NTC and PTC thermistors.
7. Explain the working of a thermocouple.
8. Discuss IR pyrometer and optical pyrometer.
9. Briefly explain types of level transducers.
10. Discuss Bernoulli’s principle and continuity equation.

SECTION C

[Answer any 2 questions]
[Each question carries 10 marks]

1. Explain u-tube manometer and well type manometer.
2. Briefly explain types of level transducers.
3. Explain obstruction type flow meters.
4. What is a transducer? Explain it’s characteristics.

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