Digital Logic Design MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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Which type of logic circuit is used to perform arithmetic operations?
A. Arithmetic Logic Unit (ALU)
B. Multiplexer
C. Decoder
D. Encoder
Answer: Arithmetic Logic Unit (ALU)
In a D flip-flop, what does the ‘D’ stand for?
A. Data
B. Delay
C. Decimal
D. Dynamic
Answer: Data
What is the output of a NAND gate when both inputs are true?
A. False
B. True
C. Zero
D. Undefined
Answer: False
What is the binary representation of the decimal number 10?
A. 1010
B. 1001
C. 1100
D. 1111
Answer: 1010
Which gate is known for its ability to perform subtraction in binary arithmetic?
A. XOR gate
B. AND gate
C. OR gate
D. NAND gate
Answer: XOR gate
What is a Karnaugh map used for?
A. To simplify Boolean algebra expressions
B. To perform arithmetic operations
C. To store data
D. To amplify signals
Answer: To simplify Boolean algebra expressions
What is the primary use of a shift register in digital circuits?
A. To shift data in a sequence of bits
B. To perform addition
C. To filter signals
D. To store data
Answer: To shift data in a sequence of bits
What is the function of a decoder in digital circuits?
A. To decode binary information into a specific output
B. To encode data into binary format
C. To perform arithmetic operations
D. To store data
Answer: To decode binary information into a specific output
Which logic gate produces an output that is true if at least one input is true?
A. OR gate
B. AND gate
C. NOT gate
D. XOR gate
Answer: OR gate