Janardan Rai Nagar Rajasthan Vidyapeeth B-Tech (Digital Electronics) University model question papers



Download Model question papers & previous years question papers

Posted Date: 06 Sep 2008      Posted By:: Megha    Member Level: Silver  Points: 5 (₹ 1)

2006 Janardan Rai Nagar Rajasthan Vidyapeeth B.Tech Electrical Engineering B-Tech (Digital Electronics) University Question paper



Course: B.Tech Electrical Engineering   University/board: Janardan Rai Nagar Rajasthan Vidyapeeth





BSAE4/BSET4/BSE4/BSCO4 – DIGITAL ELECTRONICS
TIME : 3 HRS Maximum Marks :75

Instructions:
1. Question paper is divided into Group A, Group B, and Group C
2. Each Group is of 25 marks.
3. Figure to the right in bracket indicate Marks.
4. Good Handwriting is expected.

Group- A (25 Marks)
Answer any three questions (Question 1 is compulsory)
Q.1 Explain Basic adder circuit with truth table? (5)
Q.2 What is meant by Gray code? How do convert binary to gray code with examples? (10)
Q.3 What is multiplexer? Explain 16:1 multiplexer. (10)
Q.4 What do you mean by shift left & shift right register? (10)
Q.5a) Explain OR Gate. (10)
b) Explain NOR Gate.
c) Explain Exclusive-OR Gate.
Group – B (25 Marks)

Answer any Three Questions ( Question 6 is compulsory):
Q.6 Explain the laws of Boolean algebra. (5)
Q.7 a) Convert (111101100)2 to octal equivalent. (10)
b) Convert (567)8 to decimal equivalent.
c) Convert (567.25)10 to binary number.
Q.8 Multiply (11101)2 x (011)2 using repeated add & right shift algorithm. (10)
Q.9 What is counter? Explain the ring counter concept. (10)
Q.10 a) Add (-110) & -32 using 2's complment method. (10)
b) Perform addition in binary (372.53)8 +(26.03)8

Group – C (25 Marks)
Q. 11 (A) Fill in the Blanks ( Each question carries 2 marks, Total= 10 marks)
1) 1 byte is equal to________________________
2) A 4bit parallel adder can add____________________
3) (5)8+(1)8=______________________________
4) Floating point numbers are expressed in the form of___________________
5) Ripple counter is called as _____________________________.


(B) Multiple choice Question (Each question carries 2 marks, Total= 10 marks)

1) The radix of Hexadecimal number is________________________
a) 8 b)16 c)10 d) 2
2) The Excess 3 BCD Code for (1111)2 is_________________________
a) (1000)2 b) (10010)2 c) (0001)2 d) none of these
3) In general multiplexer the output lines are___________________
a) n b)2n c) n-1 d) n+1
4) Minimum number of flipflop needed to construct a BCD counter is _______________
a) 4 b)3 c) 10 d) none of these
5) OR gate is expressed by logic expression_____________________
a) Y=A+B b)Y=A-B c) Y=A.B d) Y=A?B

(C) Indicate whether following statements are True or False (Each question carries 1 marks, Total= 5 marks)
1. The total number of 1's in the data bit string becomes even that parity is called Even parity.
2. Hamming code is used to correcting single bit errors on message of any length.
3. The binary number has radix 8.
4. One shot is a type of timer.
5. Distributive law is A(B+C)=AB+AC.

****************





Return to question paper search

Next Question Paper: B-tech electrical(THERMODYNAMICS)

Previous Question Paper: B-tech Electrical (ELECTRICAL MACHINES)

Related Question Papers:


  • III sem SINGALS & NETWORKS


  • B-tech


  • B-Tech Electrical


  • DIGITAL ELECTRONICS


  • B-Tech Electrical


  • Categories


    Submit Previous Years University Question Papers and make money from adsense revenue sharing program

    Are you preparing for a university examination? Download model question papers and practise before you write the exam.


    Looking for University or College admissions in India for 2021 - 2022 Academic Year?

    APPLY NOW
    Top Contributors
    TodayLast 7 Daysmore...

    Awards & Gifts
     
    SpiderWorks Technologies Pvt Ltd, Kochi - India. © All Rights Reserved.