Solved question paper for BE Dec-2017 (DIPLOMA automobile engineering 1st-2nd)

Basic electronics

Previous year question paper with solutions for Basic electronics Dec-2017

Our website provides solved previous year question paper for Basic electronics Dec-2017. Doing preparation from the previous year question paper helps you to get good marks in exams. From our BE question paper bank, students can download solved previous year question paper. The solutions to these previous year question paper are very easy to understand.

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Question paper 1

  1. SECTION-A

    Q1. Fill in the blanks.

    a. The input impedance of a FET is __________than that of BJT.

    Answer:

  2. b. ICEO = _______________ICBO.

    Answer:

  3. c. The process of adding impurities is called ____________.

    Answer:

  4. d. The turn on voltage in a silicon diode is _________.

    Answer:

  5. e. A zener diode is always operated in ___________region.

    Answer:

  6. f. Holes are _______carriers in N-type semiconductors.

    Answer:

  7. g. When the gate terminal of MOSFET is positive it is said to operate in _______.

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  8. h. The unit of hie is______.

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  9. i. In a transistor there are____________ PN junctions.

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  10. j. The point of intersection of dc and ac load line is called__________

    Answer:

  11. SECTION-B

    Q2. Attempt any five questions.

    i. What is ripple factor? How it can be minimized?

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  12. ii. Explain zener diode as a voltage regulator.

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  13. iii. Explain intrinsic and extrinsic semiconductors.

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  14. iv. Give construction and working of MOSFET.

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  15. v. Explain the working of half wave rectifier.

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  16. vi. Draw the circuit diagram of CE amplifier. Explain briefly.

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  17. vii. What do you mean by h parameters of a transistor? Explain briefly.

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  18. SECTION-C

    Q3. Attempt any three questions.

    a. Explain construction of NPN transistor. Explain how it can be used as amplifier

    Answer:

  19. b. Discuss energy band structure for insulators, semiconductors and conductors.

    Answer:

  20. c. Write a short note on (any two)

    i. Filter circuits

    ii. AC and DC load line

    iii. Avalanche breakdown

    Answer:

  21. d. What are various transistor biasing circuits? Compare their advantages and disadvantages.

     

    Answer:

  22. e. With the help of a diagram, explain the working of a bridge rectifier.

    Answer: