B.TechSemester 52023-24Industrial ElectronicsKEC052

Industrial Electronics (KEC052) - AKTU Question Paper 2023-24

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Industrial Electronics Previous Year Question Paper for B.Tech Semester 5, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 5

Session:2023-24

University:AKTU / UPTU

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Questions Asked in 2023-24

Industrial Electronics (KEC052) — complete question paper · 100 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 10 = 20

a
Write down any two applications o f power transistors. 2 1
b
Define latching current. 2 1
c
Discuss SCR triggering. 2 3
d
Differentiate opto-TRIAC and opto-SCR. 2 3
e
Define term average value of voltage. 2 5
f
Describe the working of feedback diode. 2 2
g
Describe induction heating. 2 2
h
Name any two pressure transducer. 2 4 i. Discuss why power factor control is necessary. 2 4 j. Discuss about need of data commu nication in industrial electronics. 2 5

Section BAttempt any three of the following: 10x3=30

a
Explain operation and working of DIAC. 10 1
b
Describe Construction & Working of Opto- Isolators 10 2
c
Explain working of relay using opt o-SCR with suitable block diagram. 10 3
d
Explain timer circuit using SCR. 10 4
e
Explain SCADA with suitable block diagram and applications. 10 5

Section CAttempt any one part of the following: 10x1=10

a
Describe working and construc tional features of power transistors. 10 1
b
Explain construction and w orking of power MOSFET. 10 1
a
Explain Series and Parallel operation of SCR. 10 2
b
Describe Construction & Working of Opto-TRIAC. 10 2
a
Explain the concept of freewh eeling diode with waveforms. 10 3
b
Explain single phase bridge i nverter circuit with load volta ge and load current waveforms
a
Explain construction and worki ng of thermos-resistive transducers. 10 4
b
Explain the working of varia ble-frequency with construction diagram. 10 4
a
Explain slip power recovery sch eme for speed control of AC drive. 10 5
b
Explain power factor control through solid state devices. 10 5

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.