Solved question paper for BE Dec-2016 (DIPLOMA mechanical engineering 1st-2nd)

Basic electronics

Previous year question paper with solutions for Basic electronics Dec-2016

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Question paper 1

  1. SECTION – A

    Q1 . Attempt all Questions

    (a) Valence electrons are present in ……… orbit of an atom

    Answer:

  2. (b) The process of adding impurity to an intrinsic semiconductor is called ………

    Answer:

  3. (c) The value of knee voltage for silicon diode is……….. volt.

    Answer:

  4. Answer:

  5. (d) Zener diode is made to operate in ……… region.

    Answer:

  6. (e) The maximum efficiency of full- wave rectifier is …………..

    Answer:

  7. (f) A transistor contains ……… PN junctions.

    Answer:

  8. (g) An ideal value of stability factor is …………

    Answer:

  9. (h) The point of intersection of DC and AC load line is ……..

    Answer:

  10. (i) FET stands for …………

    Answer:

  11. (j) FET is a ……. Polar device.

    Answer:

  12. (k) PIV Stands for ………….

    Answer:

  13. (l) The ………..biasing is most widely used

    Answer:

  14. (m) The emitter of a transistor is doped ……….

    Answer:

  15. (n) The minority carriers in N type semiconductors are …………

    Answer:

  16. (o) MOSFET has ………… terminals

    Answer:

  17. SECTION – B

    Q2. Attempt any five Questions

    (a) Define doping . 

    Answer:

  18. b) Write a note on Zener diode.

    Answer:

  19. (c) Why a bridge rectifier is preferred over a center-tap full wave rectifier?

    Answer:

  20. (d) Explain the working of PNP transistor with diagram..

    Answer:

  21. (e) Write a note on stabilization and what is its need.

    Answer:

  22. (f) Write down the significance of h-parameters.

    Answer:

  23. (g) Distinguish between FET and BJT.

    Answer:

  24. SECTION – C

    Q3. Attempt any three Questions

    (a) Draw and explain the V-I characteristics of PN junction diode.

    Answer:

  25. (b) Draw and explain the Common Emitter Characteristics.

    Answer:

  26. (c) Explain potential divider bias circuit with diagram.

    Answer:

  27. (d) Explain the circuit diagram of single stage transistor amplifier.

    Answer:

  28. (e) Explain the construction and operation of FET.

    Answer: