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Model Paper DEEE III SEM ||ELECTRONICS EE- 305||

Board Diploma Examinations

III Semester DEEE

Model paper-I

Electronics-I (EE-305)

 

Time : 3 hrs                                        Max Marks : 80 Marks

                                      PART- A                                10 x 3 = 30

Answer all the questions

Each question carries three marks.

  1. Define (i) Resistance (ii) Capacitance?
  2. List the applications of capacitors?
  3. Draw the symbols of NPN and PNP transistors?
  4. Draw the bridge rectifier circuit?
  5. State the need of filter?
  6. List the applications of the UJT?
  7. Draw the symbols of FET and SCR?
  8. List the causes for instability of bias in amplifier?
  9. Define the D.C operating point in amplifiers?
  10. List different types of coupling methods?

 

PART- B                                         5 x 10 = 50

Answer any five questions

Each question carries ten marks.

 

  1. Explain about colour code used in calculating a resistance value?
  2. Explain the operation of zener diode and draw its characteristics?
  3. Explain the working principle of full wave rectifier with waveforms?
  4. Draw and explain the working of a uni junction transistor?
  5. Explain the construction and working of a LCD?
  6. Draw and explain about the potential divider bias in amplifiers?
  7. Draw and state the function of each component in transformer coupled amplifier?
  8. Draw the frequency response characteristics of RC coupled amplifier and indicate the gain band width, upper cut-off and lower cut-off frequencies

 

Board Diploma Examinations

III Semester DEEE

Model paper-II

Electronics-I (EE-305)

 

Time : 3 hrs.                                    Max Marks : 80 Marks

                                            PART- A                                10 x 3 = 30

Answer all the questions

Each question carries three marks.

  1. Define (i) Self-inductance (ii) Mutual inductance?
  2. Mention the specifications of resistors?
  3. State the different transistor configurations?
  4. Draw the half wave rectifier circuit?
  5. List the different types of filter?
  6. List the applications of the SCR?
  7. Draw the symbols of LED and photo transistor?
  8. State the necessity of proper biasing for amplifier?
  9. List different biasing methods used in amplifiers?
  10. State the necessity of cascading of amplifiers?

PART- B                              5 x 10 = 50

Answer any five questions

Each question carries ten marks.

  1. Explain the losses in i) Inductors and ii) Transformers?
  2. Explain the working of PN Junction diode with no bias, forward bias and reverse bias?
  3. Explain the working principle of bridge wave rectifier with waveforms?
  4. Draw and explain the working of a field effect transistor (FET)?
  5. Explain the construction and working of a SCR?
  6. Draw and explain about the collector to base bias in amplifiers?
  7. Draw and state the function of each component in RC coupled amplifier?
  8. Classify amplifiers on the basis of i) frequency ii) function iii) type of load iv) period of Conduction and v) Number of stages?

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