Industrial Electronics B.Sc Model Question Papers : alagappauniversity.ac.in

Name of the University : Alagappa University
Degree : B.Sc
Department : Electronics
Subject Code/Name : Industrial Electronics
Year : III
Semester : V
Document Type : Model Question Papers
Website : alagappauniversity.ac.in

Download Model/Sample Question Paper : APRIL 2011 : https://www.pdfquestion.in/uploads/alagappauniversity.ac.in/3969.-B.Sc.%20Electronics.pdf

Industrial Electronics  Question paper

Time : 3 Hours
Maximum : 100 Marks

Related : Alagappa University Business Economics-I B.A Model Question Papers : www.pdfquestion.in/3959.html

Part A :
1. Distinguish between SCR and TRIAC.
2. Mention the requirements of a triggering circuit.
3. Explain the principle of Resistance welding.
4. Draw the construction of Photoelectric relay.
5. Explain the methods of detection of Ultrasonics.
6. (a) With a neat diagram explain the construction,
7. (a) Explain with the help of a circuit diagram the
8. (a) Explain the method of coupling of electrodes to a
9. (a) Explain the construction and working –
10. (a) Explain the construction and working –
11. Discuss the parallel operation of Thyristors.
12. Give an account on Line and Load commutation
13. Draw the circuit of a Weld control and also explain its
14. Give a detailed note on Flame failure protection.
15. Describe the principle and working of a Piezoelectric generator.

Measurement & Instrumentation

1. Explain briefly the classification of transducers.
2. Mention the application of spectrum analyzer.
3. How are DVM classified –
4. What are the major components of a cathode ray tube –
5. What are the three requirements of an Automatic
6. (a) Explain the classification of standards.
7. (a) Explain the function of AM signal generator
8. (a) Explain the basic principle of vector voltmeter.
9. (a) Draw the block diagram of CRO and explain briefly-
10. (a) Explain how the radio receiver can be tested
11. A set of independent voltage measurements-
12. What is the maximum frequency and resolution for
13. Explain in detail about Digital storage oscilloscope.
14. Calculate the velocity of electrons that have been
15. Describe briefly about digital control description.

Microprocessor Interfacing

1. Write a short note on Address Decoding.
2. Write a short note on DMA data transfer scheme.
3. Discuss the term BSR mode.
4. What are the operating modes in 8255 A –
5. Write a short note on Display Interfacing.
6. (a) Explain in detail I/O Instruction cycle and also
7. (a) Explain in detail about enabling, disabling and
8. (a) Explain in detail about the Multiple Interrupt devices.
9. (a) Explain about 8257.
10. (a) Sketch the block diagram of 8253 and explan-
11. Explain the principle and working of a 7-segment LED display.
12. Explain Interrupt driven Data transfer.
13. Sketch the block diagram of 8255 A I/O modes
14. Explain the working of 8253 as counter.
15. Explain the architecture of Intel 8031.

Medical Electronics

1. Discuss the term Electrooculogram.
2. Give a brief note on PO2.
3. Describe the hearing aids in detail.
4. Define Biotelemetry
5. What are the different medical applications –
6. (a) With a neat diagram, explain the working of an ECG machine.-
8. (a) What is meant by defibrillation –
9. (a) Describe the working details of the shortwave
10. (a) Explain the principle and working of endoscopyunit. Give its uses.

(Or)
(b) Describe the various applications of Lasers in different fields of medicine. Also mention the specific advantages of Laser surgery.

Answer any three questions.
11. Calculate the velocity of the blood flow in a blood vessel using the following data. The velocity of ultrasonic aves in blood is 1500 m/s. The angle between the direction of the blood flow and the direction of the incident ultrasonic beam is about 30º. The Doppler shift in frequency is about 231 Hz when the incident ultrasonic frequency is 2 MHz.

12. Calculate the cardiac output, given the following data:
Spirometer O2 consumption 150 ml/min ; arterial O2content 0.35 ml/min ; Venous O2 content, 0.05 ml/min.

13. A defibrillator delivers a square pulse of 4000 V. with a duration of 4 milliseconds. The internal resistance of the defibrillator is about 150 ohms. The skin electrode resistance is 50 ohms and the thorax resistance is 30 ohms. Compute the energy delivered to the patients thorax and the total energy available from the defibrillator. Also calculate the percentage of loss of energy.

14. Determine the time constant for bioamplifier whose lower limit frequency is 0.07 Hz. Discuss the malfunction of ECG when the lower limit is reduced to 0.1 Hz.

15. Compute the energy per pulse when the pacemaker pulse width is 0.5 millisecond and pulse voltage is 3 volts; the circuit current drain is 0.5 ? A, the heart electrode resistance is 500 ohms and the heart rate is 70 bpm.