Thursday, October 29, 2015

ME2255 Electronics and Microprocessors Nov Dec 2015 Important Questions

Do you search for ME2255 Electronics and Microprocessors important questions 2015? Listed below is top 20 important questions of ME2255 Electronics and Microprocessors for Anna University Nov Dec 2015 exams. Go through the contents of the question paper below.

Anna University Chennai
Department of B.Tech Automobile Engineering
Fourth Semester
ME2255 Electronics and Microprocessors
November / December 2015 Exam Important Questions
(Regulation 2008)

IUQP Important Questions
Anna University, Chennai
Department of B.E-Automobile Engineering
B.E / B.TECH DEGREE EXAMINATION Nov Dec 2015
FOURTH SEMESTER
ME2255 Electronics and Microprocessors
(REGULATION 2013)

1. (i) With circuit explain principle of operation of full wave rectifier. (10‘)
(ii) Describe conduction in P-type and N-type semiconductor. ((3)

2. (i) Draw and explain the circuit of a full wave rectifier. (8)
(ii) Discuss about intrinsic and extrinsic semiconductors. (8)

3. Draw V/l characteristics of PN junction diode and explain the function of a full wave rectifier
with a neat circuit diagram

4. Draw and explain the formation of a PN junction and explain the working of the diode under
forward and reverse biased conditions:

5. (i) Explain configuration and characteristics of CB BJT- (8)
(ii) How FEF can be used an amplifier. (8)

6. Sketch the input and output characteristics of common emitter configuration and explain how
these are obtained?

7. With neat circuit diagrams, explain the methods of transistor biasing.

8. Write in detail about the operation of JFET under various biasing conditions

9. With circuit and waveform explain the principle of operation of S-R flipflop.

10. Draw and explain the operation of A/D and D/A converters.

11. Reduce the following function and implement using universal gates.
F = A’B’C’ + A'B’C + A'BC + A'BC’ + AB’C + ABC

12. With diagram explain architecture of 8085 (16)

13.With examples, explain the data transfer instructions and arithmetic instructions of 8085

14. Explain the interrupt structure of 8085 CPU with the required diagrams

15. Draw and explain the block diagram and operation of Traffic light controller with a microprocessor

16. Draw and explain the block diagram and operation of temperature controlling system with
microprocessor.

17. Write short notes on keyboard interfacing.

18. Design a traffic light control system using 8085 CPU. Write its sequence of operation with
neat block diagram of the system. Support your answer with the software flowchart.

19. Suggest the methods to vary the speed of shaft of a machine using stepper motor. Design
the microprocessor based system interface to control the speed of stepper motor

20. With block diagram explain interfacing of input devices (16)




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