QUESTION BANK / PREVIOUS QUESTION PAPERS

QUESTIONS

Blooms
Taxonomy Levels
(BTL)

1. Remem
bering
2. Underst
anding
3. Applyi
ng
4. Analyzi
ng
5. Evaluat
ing
6. Creatin
g
S.NO Questions BTL Course
Level Outcome
(Select Questions from University question Bank and mention year in (Please (Please
bracket or you may give own standard question with (new) in bracket) mentio mention
n L1 or CO1
L2 or Or CO2
etc...) etc…)
UNIT-1
PART –A(2 Marks)
1 Draw the truth table and symbols of AND and OR gates. (APR/MAY- L1 CO1
2018 JNTUH)
2 Draw AND, OR, NOR by using NAND gates only. (NOV/DEC-2018 L2 CO1
JNTUH)
3 State and Prove De Morgan’s Theorems. (NOV 2015- R13, R16- L2 CO1
April-2018)
4 Find the 2’ complement of the binary number 100010101 L1 CO1
5 Simplify the given Gray code number to equivalent binary L2 CO1
001001011110010. (May – 2016 JNTUH)
6 Convert the following decimal numbers into their binary equivalents: L1 CO1
(79.515)10 (New)
7 Find the dual of the following Boolean expression A+B+A¢B¢C L1 CO1
(May – 2016 JNTUH)
8 What are the Binary Codes? L2 CO1
9 What is main difference between one’s Complement & Two’s L2 CO1
Complement
10 Distinguish between weighted and non-weighted codes with example. L2 CO1
 (NOV/DEC-2018 JNTUH)
PART-B(5 Marks)
1 State and prove Boolean Theorems: i) Cumulative ii) Associative iii) L2 CO1
Distributive
2 a) Simplify (A0F9.0EB)16 to decimal, binary, octal. (May – 2016 JNTUH) L2 CO1
b) Obtain the complement of the following Boolean expressions
F=A’B+A’BC’+A’BCD+A’BC’D’E (Mar-2017)
3 Explain Binary Codes. L2 CO1
4 a)Convert (25.625)10 to Binary, Octal, Hexadecimal ?(New) L2 CO1
b) Convert the following to Binary and then to gray code: i) (AB33)16
ii) (3323)8 (New)
5 a) Explain the logic gates with examples of IC L2 CO1
b) State and Prove De Morgan’s Theorems. (NOV 2015- R13, R16-
April-2018)
6 Convert the following expression into SOP and POS: L2 CO1
i) (AB+C)(B+C′D) ii) x′ +(x+y′ )(y+z′ )
7 Obtain the standard SOP and POS of A+BC’+ABD’+ABCD (Mar- L2 CO1
2017)
UNIT-II
PART-A(2 Marks)
1 What is Maxterm? (RA MAY 17) L1 CO2
2 Give the limitations of K-Map method. L2 CO2
3 What is Minterm? L1 CO2
4 What is SOP? L1 CO2
5 What is POS? L1 CO2
6 What mean by don’t care condition? L1 CO2
7 What is main use of K-map? L1 CO2
8 Draw the NOT gate by using NOR gates? L2 CO2
9 Obtain the standard SOP of A+BC’+ABCD (Mar-2017) L1 CO2
PART-B(5 Marks)
1 Simplify the following function L1 CO2
F(A,B,C,D)=∏(3,7,8,12,15)+ ∏d(9,14) (New)

2 Simplify the following function and design it with Logic gates L1 CO2
F( a,b,c,d)=Ʃm(1,3,7,11,15)+d(0,2,5) (APR-2018 JNTUH)
3 Reduce the following function using K-Map. L2 CO2
1. F(A,B,C) = Σm (1,3,4,7)+d(0,2)
2.F(A,B,C)= Σm(0,2,4,6,7)
4 F=A’B+AB’ implement using Universal gates with truth table L2 CO2
5 Simplify the given expression using Q-M method(Tabular method) L2 CO2
F(w, x, y, z)= ∑(2,4,5,9,12,13). R13 Mar-17
6 Implementation of basic gates by using Universal gates. L2 CO2
UNIT-III
 PART-A(2 Marks)
1 Draw half adder circuit. (APR/MAY-2018 JNTUH) L2 CO3
2 Draw 2x1 Multiplexer With Neat Logic Diagram(Apr-2018 JNTUH) L2 CO3
3 What is Combinational circuit? give examples.(R15 Mar -17, R15 L2 CO3
Nov 2015 )
4 Compare multiplexer and de-multiplexer(NOV/DEC-2017 JNTUH) L2 CO3
5 What is magnitude comparator? Draw its block diagram L2 CO3
6 What is Encoder? (R13 MAR-17) L1 CO3
7 Draw the Full Subtractor using AOI Logic? (R15 NOV-16) L2 CO3
8 What is Code Converter?(Text Book) L1 CO3
9 What is Decoder? (Text Book) L1 CO3
PART-B(5 Marks)
1 Design 2-bit Magnitude comparator with its truth table. L2 CO3
2 a) Design full adder using only two half adders and one OR gate. L2 CO3
(R09 May-17).
b) Construct 4-Bit adder-Subtractor

3 a) What is Decoder? Construct 3 to 8 Decoder Using Logic Gates and L1 CO3

truth table (R09 May-17, R16-April-2018).
b) Implement the following function using MUX
F(A,B,C,D) = ∑m (0,3,4,7,8,12,15)
4 a) a) Explain the operation of Full Subtractor with neat circuit L2 CO3
diagram
b) Design a BCD to Excess-3 code converter and draw the logic
diagram.
5 a) Design a 4-bit Binary to Gray converter.(Text Book) L2 CO3
b) Explain the operation of 1:4 DE MUX with neat circuit diagram?
6 With a neat diagram, explain in detail about the working of a 4-bit look L2 CO3
ahead carry adder.
7 b) Implement the switching function using F = Σm(0,1,3,4,12,14,15) L2 CO3
using encoder
UNIT-IV
PART-A(2 Marks)
1 What is Sequential circuit? L1 CO4

2 What is latch? L1 CO4

3 What is Ring Counter? L1 CO4

4 What Are Applications Of Ring Counter(Apr-2018 JNTUH) L1 CO4

5 Explain about binary cell. (May – 2016 JNTUH) L2 CO4

6 What is flip flop? L1 CO4

7 What is the excitation table and truth table of D flip flop. (NOV/DEC- L2 CO4
2017 JNTUH)
8 What is shift Register? Give its basic classification.[R15 March-2017] L1 CO4

9 Draw the NOR Latch and give its truth table(NOV/DEC-2017 L2 CO4
JNTUH)
10 What is Binary Counter and give applications? L1 CO4

PART-B(5 Marks)
1 a) Explain the operation of D Flip Flop with neat circuit diagram? L2 CO4
b) Write the comparison between Synchronous and Asynchronous
Counters?
2 a) Explain the operation of SR Flip – Flop using Truth table? (April- L2 CO4
14, R15 Mar-17, R13 May-13.)
b) Write the Excitation table of SR, D, JK, T Flip Flop? (April -17.)
3 a) Explain about State Reduction and Assignment with example. L2 CO4
b) List the applications of counters?
4 a) Design 3-bit synchronous up counter using T/JK Flip Flop. L2 CO4
b) Write the comparison between combinational and sequential
circuits?
5 a) Write the comparison between Latch and Flip Flop? L2 CO4
b) Design the 3-bit Ripple counter with Timing Diagram.
6 a) Construct the 4-bit Ring counter and draw the timing diagram? L2 CO4
b) Explain jhonson ring +counter using any flip flop?
7 What is shift register? Write short notes on L1 CO4
i) SISO register ii) SIPO register PISO register iv) PIPO
register

UNIT-V
PART-A(2 Marks)
1 What is programmable logic array? (NOV/DEC-2017 JNTUH) L1 CO5
2 What is PROM? L1 CO5
3 What is Programmable Array Logic? L1 CO5
4 What are the advantages of PLDs? (JUNE 2015- DLD) L1 CO5

5 What are the type of PLD’s? L1 CO5

6 What is sequential memory? L1 CO5

7 What are different types of memory or Classify different types of L1 CO5

memory? (NEW)
PART-B(5Marks)
1 a) Implement the following function using a PAL. a) F (A, B, C, D) = L1 CO5
Σm (1, 9, 12, 15). (DEC 2016)
2 a) Design 3 bit binary to Gray Code converter using PLA? (March L2 CO5
 2017-),
b) Write the comparison between PROM, PLA, PAL?
3 a) Realize the BCD to EXCESS-3 code converter using PROM (JUNE L2 CO5
2015).
b) Implement following Boolean functions using PLA
F1(A,B,C)= ∑ (0,1,3,5) and F2(A,B,C)= ∑ (0,3,5,7)
4 a) Design a PAL to realize a full Adder circuit. (NOV/DEC-2017 L2 CO5
JNTUH) b) Implement the function using PROM
F(A,B,C,D)= ∑ (1,2,3,4,5,7,8,10,11,12,13,14,15)
5 a)Classification of semiconductor memories L1 CO5
b)Explain i)PROM ii)EPROM iii)EEPROM
6 a) Write the difference between ROM and RAM? L2 CO5
b) Write the comparision between SRAM and DRAM?