Monday, January 30, 2023

Dr. A.P.J. Abdul Kalam University BE VI SEM (EC) Industrial Electronics [EC601] June 2021 Question Paper

Dr. A.P.J. Abdul Kalam University

Bachelor of Engineering

Sixth Semester Examination, June-2021

Industrial Electronics [EC601]

Branch: EC

Time: 3:00 Hrs Max Marks 70

Note: 1. Attempt any five questions out of eight.

2. All question carry equal marks.

Q.1 a) Differentiate thyristor and transistor.

b) Explain the triggering method of SCR circuits.

Q.2 (a) Explain the working of DIAC and TRIACS.

(b) What is MOSFET also explain its working.

Q.3 (a) Explain the constructional features and principle of operation of siliconcontrolled rectifier.

 (b) Explain working of three phase full wave rectifier.

Q.4 (a)Describe PLC also draw its functional block diagram.

(b)Explain Op-Amp as rectangular to triangular pulse-convertor.

Q.5 (a) What is MOSFET also explain its working.

(b) Discuss the principle working of bridge type full wave rectifier.

Q.6 (a) What programming language is used to program PLC explain with


(b) Discuss the working of a Buck-boost regulator with the help of diagram.

Q.7 (a) Explain the application of Op-Amp as Wien bridge oscillator

(b) What are the criteria of choosing a PLC?

Q.8 (a) Explain in brief the working of Insulated Gate Bipolar Transistor (IGBT)

(b) Discuss the application of Op-Amp in function generator.

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