Roll No. :
Total No. of Pages : 02
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Total No. of Questions : 16
BCA (2014 to 2018 Batch) (Sem.-3)
DIGITAL CIRCUITS AND LOGIC DESIGN
Subject Code : BSBC-303
M.Code : 10059
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Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains SIX questions carrying TEN marks each and students have to attempt any FOUR questions.
- Use of non-programmable scientific calculator is allowed.
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SECTION-A
Answer briefly :
- What is NAND gate?
- What is half adder?
- What is binary subtractor?
- What is multiplexer?
- Differentiate between RS and JK-flip-flop.
- Explain Synchronous counter.
- What is race condition?
- Convert octal 736.4 to decimal.
- What is up-down counter?
- What is 1’s complement of 0001111?
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SECTION-B
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- Explain design of synchronous counters.
- Explain different types of flip-flops.
- Explain different types of logic gates.
- Differentiate between :
- encoder and decoder.
- half adder and full adder
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- Explain MOD-N counters
- Convert the hexadecimal number F3A7C2 to binary and octal.
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- Simplify the Boolean function F(A,B,C,D)= S(3,7,11,13,14,15) in sum-of-products form.
- Explain the concept of binary adder.
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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
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This download link is referred from the post: PTU BCA Last 10 Years 2011-2021 Previous Question Papers