Electronics Combinational Logic Circuits Questions and Answers
Electronics Combinational Logic Circuits questions with answers help students understand digital logic concepts like adders, multiplexers, decoders, and encoders. These aptitude questions and answers with explanations are commonly asked in exams like GATE, BARC, and ISRO. Combinational circuits form the foundation of digital electronics, where the output depends solely on the current inputs. Practicing aptitude questions with solutions PDF builds analytical skills and logical reasoning ability required for competitive and placement exams. For students pursuing electronics and communication engineering, mastering these concepts is essential for technical interviews and academic excellence.
Electronics Combinational Logic Circuits
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29 questions
11. Which of the following is an example of a combinational circuit?
- Flip-flop
- Counter
- Multiplexer
- Shift register
12. What is the output of a half adder when both inputs are 1?
- Sum=0, Carry=0
- Sum=1, Carry=0
- Sum=0, Carry=1
- Sum=1, Carry=1
14. What is the main difference between combinational and sequential circuits?
- Clock requirement
- Memory elements
- Number of gates
- Power consumption
15. Which gate is primarily used in parity generators?
- AND gate
- OR gate
- XOR gate
- NAND gate
16. What does a multiplexer do?
- Encodes data
- Decodes data
- Selects one input from multiple
- Stores data
18. What is the function of a decoder?
- Converts binary to decimal
- Selects inputs
- Stores data
- Amplifies signals
20. What is a priority encoder?
- Encoder with priority for highest input
- Encoder with equal priority
- Encoder with memory
- Encoder with parallel output