Logic Circuits | Question Paper 2073 | CTEVT Diploma | 1st Year/2nd Part
Office Of The Controller Of Examinations
Sanothimi, Bhaktapur
Regular/Back Exam - 2073 Bhadra/Ashwin
Year/Part: First Year/Second Part (New Course)
Subject: Logic Circuits
Time - 3 hrs
Full Marks - 60
Pass Marks - 24
DOWNLOAD PDF of Question Paper | Logic Circuits | CTEVT | Computer Diploma 1st Year/2nd Part | 2073.
Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
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Attempt Any Five (5) questions:
1.
a) Define Signal. Differentiate between analog and digital signal with suitable example. (2+4=6)
b) Convert the following number system. (1x4=4)
i) (2564.87D)16 = (?)2
ii) (4432.123)8 = (?)16
iii) (111101010*11010)2
iv) (1101001.110)2/(110)2
c) Subtract the following (1111010101)2 from (111110000)2 using 2's Compliment. (2)
2.
a) Explain about AND and OR gate with necessary truth table, symbol and logical expression. (3+3=6)
b) Define Universal gate. Explain how NOR gate operate as Basic gate with necessary realization technique.
3.
a) Simplify the following expression using K-map. (6)
⅀F(A,B,C,D) = ⅀m(0,1,3,4,7,8,12,15)
⅀d(2,5,6,14)
b) Define Adder. Explain the operation of Full adder with clear diagram and truth table. (1+5=6)
4.
a) Define Encoder. Design BCD to decimal decoder with clear circuit diagram and truth table. (1+5=6)
b) Design 8:1 Multiplexer with clear circuit diagram and truth table. (6)
5.
a) Define Flip-flop. Explain the operation of JK flip flop with necessary diagram and truth table. (1+5=6)
b) Define counter. Explain the operation of ripple counter with clear diagram. (1+5=6)
6. Write short notes on: (Any Four) (4x3=12)
a) LCD display
b) SISO shift register
c) Gray code
d) De Morgan's theorem
e) Demultiplexer
Good Luck!
Also Check:
All CTEVT Exam Papers For Computer Diploma First Year 2nd Semester 2073.
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