# NIFTEM-Electronic Engineering ENG 122- End Semester Question Paper Jun 2017- 2nd Sem ## NIFTEM-Electronic Engineering ENG 122- End Semester Question Paper Jun 2017- 2nd Sem

The information shared below is only to get a rough idea of NFTEM’s end semester question paper pattern. However, questions proportion from the syllabus topics may vary every semester.

#### Important points-

1. Time- 3:00 hours
2. Total Marks- 100
3. Three parts A, B & C, in which Part A is compulsory of (30 marks) having Objective questions, MCQs, Fill in the blanks and matching type questions. Students have to answer the questions from Part-A on the paper itself. Time allotted for Part-A is 40 minutes
4. Part B & part C consists of 40 marks and 30 marks respectively. Part B- 8 questions of 5 marks each & Part C- 3 Questions of 10 marks each. Time for Part-B and C is total of 2:20 hours.

# PART B

### Answer any 8 questions from the following-

1. Explain the working of Zener diode as a voltage regulator.

2. Perform the conversions-

(a)  (256.12)→ (    )10

(b) (1011.00)2→ (    )16

(c) (5CB)16 →   (      )10

3. Draw and explain BJT Common emitter configuration.

4. Describe the current-voltage characteristics of p- channel JFET.

5. Explain the working principle of SCR.

6. Differentiate between DIAC and TRIAC.

7. Minimize the following function using K-Map.

F= A’. B’. C’. D’ + A’. B. C’. D + A’. B’. C. D’ + A. B’. C. D’ + A’. B. C’. D’  + A’. B’. C’. D

8. Explain the working of D flip flop.

9. Calculate the output voltage from the circuit for an input of  120µ. 10. Calculate the output voltage from the circuit. the inputs are V2= 50mV and V1= 10mV ? # PART C

### Answer any 3 questions from the following-

1. Determine Vo for the following network for the input indicated. Assume ideal diode. 2. Explain the characteristics and construction of n- channel JFET.

3. Describe the construction, operation, and characteristics of DIAC.

4. Design a combinatorial circuit to convert 4 bit binary data to Gray code.

5. Calculate the output voltage (Vo) using the circuit for values Rf= 470KΩ, R1= 4.7KΩ, R3= 47KΩ, and R3= 47KΩfor an input of 80mV. ### Best of Luck !!

See other papers

NIFTEM-Basic Chemistry- End Semester Question Paper Dec 2019- 1st year

NIFTEM-Basic Electrical Engineering- End Semester Question Paper Dec 2019- 1st year

NIFTEM-Physics- End Semester Question Paper Dec 2019- 1st year

Source- Question Papers collected by Soumen Roy