III B.Tech I Semester Supplementary Examinations, May 2005 POWER AND INDUSTRIAL ELECTRONICS ( Common to Electronics & Communication Engineering and Electronics & Instrumentation Engineering) Time: 3 hours Max Marks: 70 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Classify the power Amplifiers based mode of operation. Mention their uses. (b) Describe the efficiency for collector efficiency for the class ’A’ power amplifier. 2. (a) Draw and explain the operation of single tuned capacitance coupled amplifier. (b) What are the advantages of tuned amplifiers? 3. (a) Draw and explain SCR Full-wave rectifier circuit. (b) Draw and explain SCR V-I characteristics. (c) Discuss in detain how di/dt and dV/dt influence the working of a SCR. 4. (a) What is a TRIAC? (b) Explain V-I characteristics of TRIC. (c) Draw an Induction motor speed speed control circuit using TRIC. 5. (a) What are the industrial applications of TIMER CKTS? (b) What are the electronic welding controls used in resistance welding? (c) What are advantages of Timer circuits? 6. (a) What are the Industrial applications of Induction heating? Mention their advantages. (b) What are the Industrial applications of Dielectric heating? What are its disadvantages? 7. (a) Explain various Ultrasonic Oscillations generation? (b) What are the Industrial applications of Ultrasonic Oscillations? 8. Write short notes on any THREE of the following: (a) Thyristors (b) Heat sink (c) Static circuit Breaker (d) Choppers. ?????
OR310454 III B.Tech I Semester Supplementary Examinations, May ...
(a) What are the industrial applications of TIMER CKTS? (b) What are the electronic welding controls used in resistance welding? (c) What are advantages of ...
... band factor 16, one start bit, one stop bit, even · parity enable. Further transmit a message 'HAPPY NEW YEAR' in ASCII coded · form to a modem. ###. OR.
(b) A single phase fully controlled bridge converter is supplied at 230V, 50Hz, ... Explain the operation of single phase A.C. voltage controller with Resistive and.
What is a rocket, what are the various types and applications? 6. How the satellites are put in to the orbit and what are the requirements of the propulsion system ...
(c) How do you decrease the partical pressure of a component in a cracker. 4. Explain with a flow sheet the working of petrochemical complex. 5. (a) Butane is ...
Present a program schema for a FIFO branch and bound search for a Least â Cost · answer node. 8. Explain in detail how the technique of backtracking can be ...
(b) The ground water level in a deposit of fine sand is 1.5 m below ground level. Above the water table ... is 21 kN/m3. Calculate the total stress, the neutral stress.
(b) Explain the following particle size measurement techniques. i. Sedimentation ... compaction. [6]. (b) Define Sintering and how is it different from hot pressing.
III B.Tech I Semester Supplementary Examinations, November 2005. AERO SPACE ... (b) Maximum energy theory. [16] ... plain with live examples. (b) Write a ...
4. What are the objectives of wage and salary administration function? [4+6+6] · 5. Write short notes on: · [4x4=16] · (a) Speculative purchasing · (b) Rate contract ...
(a) What are the different problems associated with measurement of low resis- · tances. Explain. (b) How these problems are eliminated by using Kelvins double ...
(b) What is score boarding and its use in RISC? [10] · 5. (a) Explain the salient features of Pentium architecture. [6] · (b) Draw the schematic blocks of Floating ...
Which one you are saving by using statistical time-division multiplexing and prove · it. [16M] · 8. Give two full duplex protocols and explain their operation? [16M].
(a) Pattern plating process. (b) Tenting process. [8+8] · 7. (a) Draw the schematic diagram of magnetic amplifier with a center tapped trans- · former and D.C. ...
A reversible engine operating between a reservoir at 600 K and the ambient at- · mosphere at ... Determine the ratio of energy rejected by both the devices to the.
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(b) Discuss the help of computers in Cardio vascular evaluation in ICU. [8] · 7. Discribe the use of computers for handicapped persons. Give two examples and.
(a) Explain the pre-anesthetic care and preparation undertaken in a hospital. Why it is important? Explain. [8] · (b) How the patients are monitored during surgery ...
III B.Tech I Semester Supplementary Examinations, November 2005. POWER ELECTRONICS · (Electrical & Electronic Engineering) · Time: 3 hours · Max Marks: 80 · Answer any FIVE Questions · All Questions carry equal marks · ***** · 1. (a) Explain the oper
(c) Explain inverted paging method of memory management. [4+4+8] · 4. (a) Explain banker's algorithm for deadlock detection. (b) What are the criteria for a ...
(a) Discuss the path sensitization in a combinational circuit. shown in figure1 · (b) Find the test set to detect A1- SA0 and A1- SA1 faults using Boolean difference.
