Download PTU B.Tech 2020 March ME 3rd Sem Basic Electronics Engineering Question Paper

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Roll No. [ TTTTTT] [ ] Total No. of Pages : 02

Total No. of Questions : 09

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B.Tech.(ME) (2018 Batch) (Sem.-3)

BASIC ELECTRONICS ENGINEERING

Subject Code : BTEC305-18

M.Code : 76420

Time : 3 Hrs. Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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1. Write briefly :
   1. Define breakdown voltage and knee voltage.
   2. Define Zener Diode.
   3. What do you mean by integrated circuits?
   4. What is the working principle of op-Amp?
   5. Give the working principle of simple diode.

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   6. Draw the VI characteristic of diode.
   7. Convert 101011 into Decimal system & Octal system.
   8. Write the truth table of universal gates.
   9. State the functions of flip flops.
   10. Draw the symbolic representation of BJT and FET.

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SECTION-B

1. Explain VI characteristics of Zener diode at biasing voltage 1.1ev.
2. Compare conductor, semiconductors and insulators in detail.
3. Describe the concept of bias stabilization in PNP transistor.

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4. Perform the following addition by 2’s complement
   1. 20 to -26
   2. 25 to -15.
5. What are various laws for Boolean logic simplification?

SECTION-C

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1. What are various applications of Op-Amp? Explain in detail.
2. 1. What are the different logic gates? Give their truth tables.
   2. Discuss the working of a full wave rectifier.
3. Draw the equivalent circuit & truth table of RS Flip-Flop.

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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.