B.TECH - Semester 5 industrial electronics Question Paper 2021 (dec)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Define latching cursenl and holding current of an SCR.
- Explain briefly the basic principle used in induction heating. 3 Explain the principle of operation of a pholo Iransistor.
- Explain the llag register in 8051. Lisl any two instructions that affects flag regrster.
- Explain the principle of operation of a thermistor.
- Differentiate ADC and DAC.
- Deline slabilily of a system. Mention any two methods used for delermining the slability.
- Differentiate an open loop system and a closed loop system. g. List the time domain specilicalions in conlrol system.
- Lisl oul the difficuldes faced while applying Routh-Hurwilz stability crilerion. $$ \text { ( } 10 \times 4=40 \text { Marks) } $$ Answer any one full quoslion from each module. Each queslion carries 20 marks.
- (a) Explain the structure and working of power BJT. 10
- (b) Explain the principle of operation and applications of dielectric heaking. 10 OR
- (a) Explain the characterislics and principle of operation of an UJT B
- (b) With the help of circuit diagram and figures explain the working of singte phase bridge converter.
- (a) Explain wilh neal diagram the architecture of Intel 8051. 15
- (b) Wrile an assembly language programming to add two 8 bil numbers 5 OR
- (a) With a block diagram explain a lemperalure conlrol system using 8051. 12
- (b) Explain wilh block diagram a data acquisition system. 8
- (a) Explain the frequency domain specificalions of a second order system. 10
- (b) Using Roulh-Hurwilz slabilly crilerion predicl the stability of a syslem with characterislic equalion given as $s^{4}+8 s^{3}+18 s^{2}+16 s+5=0$ OR
- Sketch the Bode Plot for a unity feedback syslem characterized by the open loop Iransfer funclion $G(s)=\frac{10(s+3)}{\left.s(s+2) / s^{2}+4 s+100\right)}$ Delermine the Gain Margin and the Phase Margin.