## Digital Circuits And Logic Design Question Paper of 3rd Semester BCA Download Previous Years Question Paper 4

• Friday, September 02, 2016

Roll No.
Total No. of Questions : 07
BCA (Sem.–3rd)
DIGITALCIRCUITS & LOGIC DESIGN
Subject Code : BSBC-303
Paper ID : [B0230]
Time : 3 Hrs.
INSTRUCTION TO CANDIDATES :

1. Section-A is compulsory.
2. Attempt any Four questions form Section-B.

SECTION-A
1.

a.                 Perform the following: (1010)2+(1111)2
b.                 (.BCBF)16=()8?
c.                  Draw the associative law?
d.                 Define K mapping?
e.                  Define counters?
f.                   Define counter?
g.                 What is Latch?
h.                 Give truth table of T Flip Flop?
i.                   Define Boolean Algebra?
j.                   Name two universal Gates?
Section –B

2.                 Difference between Encoders and Decoders with Example of Each?

3.                 Explain the working of 3 bit synchronous counter?

4.                 Explain Binary Adder and Subtract or with  example ?

5.                 Explain working of master slave Jk flip flop?

6.
a.                 Draw the Logic Diagram of Full adder also give the expression of sum and Carry?
b.                 Draw circuit of 4x1 Multiplexes?

7.
a.                 Difference between SOP and POS forms?

b.                 Draw 8:3 line Encoder?