Hey as Bangalore University is a public state university located in city of Bangalore in the state of Karnataka. It is abbreviated as "BU

Here I am giving you Bangalore University BCA Question Paper


SECTION – A

I. Answer any ten questions. Each question carries 1 mark. (1 X 10 = 10)

1) Define molecule.

2) What are the types of Network Ports ?

3) What is meant by Rectification ?

4) What is LSI ?

5) Define passive element ?

6) Convert (DAD.ABC)16 into Binary number.

7) Convert 11101 into Gray code.

8) Write any two Boolean Postulates.

9) Give the truth table and logical symbol for NOT gate.

10) What is a combinational logic circuit ?

11) What is flipflop ?

12) Mention the basic function of shift register.

SECTION – B

II. Answer any 5 questions. Each carries 3 marks. (3 X 5 = 15)

13) Explain Kirchhoff's laws.

14) State superposition theorem and mention any two advantages.

15) What are the types of energy bands available in solids ? Explain with a neat diagram.

16) Perform binary subtraction using 2's complement

a) 38 - 27 b) 42 - 53

17) State and prove Demorgan's theorem.

18) Minimise the following standard SOP expression using Karnaugh map
_ _ _ _ _ _ _
A B C + A B C + A B C + A B C + A B C

19) Explain how NAND gate can be used as universal gate.

20) Explain the working of D flipflop with logic diagram and truth table.



SECTION – C

III. Answer any 5 questions. Each question carries 7 marks. ( 7 X 5 = 35 )

21) a) Explain maximum power transfer theorem. (3 + 4 )

b) Derive the equation for RMS value of current.

22) a) List the properties of semiconductor. (4 + 3)

b) Explain p-n junction with a neat diagram.

23) a) What are the advantages and disadvantages of full wave bridge rectifier ? (4+3)

b) Explain the characteristics of IC family

24) a) Find the decimal value of signed binary number. ( 2 + 2 + 3 )

i) 00010110 ii) 10011001

b) Convert the following hexadecimal number to octal number

i) 9.1A (16) ii) 165B (16)

c) Simplify the following into POS using K-Map

F (A, B, C) = ?( 0, 2, 3, 5) + ? d(1, 7)

25) a) Express EX-OR operation with a logic symbol and truth table and derive (3+1+3) logic diagram.

b) Write any one application of EX-OR gate.

c) Explain the working of magnitude comparator.

26) Explain the working of 4 bit parallel binary adder.

27) a) What are asynchronous inputs ? Explain. (2+5)

b) What is a T-Flipflop ? How do you convert J.K. flipflop.

28) What is a shift register ? What are the types of shift register ? Explain.



Address:

Bangalore University

Jnanbharathi Campus,

Bengaluru,

Karnataka 560056

Phone: 080 2296 1000