Digital Logic Design MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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What does ‘propagation delay’ refer to in digital circuits?
A. The time it takes for a signal to travel through a gate or circuit
B. The time it takes to store data
C. The time for analog signal conversion
D. The time for signal amplification
Answer: The time it takes for a signal to travel through a gate or circuit
What does a ‘binary adder’ do?
A. Performs the addition of binary numbers
B. Converts binary numbers to decimal
C. Stores binary data
D. Filters digital signals
Answer: Performs the addition of binary numbers
What is ‘static timing analysis’?
A. The process of analyzing timing constraints in digital circuits without simulation
B. A method for amplifying signals
C. A type of binary counter
D. A device for converting digital signals to analog
Answer: The process of analyzing timing constraints in digital circuits without simulation
What is a ‘state machine’?
A. A model used to describe sequential logic circuits
B. A device for amplifying signals
C. A type of analog filter
D. A storage device
Answer: A model used to describe sequential logic circuits
What is the purpose of ‘Debouncing’ in digital circuits?
A. To eliminate spurious pulses or noise from mechanical switches
B. To amplify digital signals
C. To perform arithmetic operations
D. To convert digital signals to analog
Answer: To eliminate spurious pulses or noise from mechanical switches
What is the ‘Karnaugh map’ used for?
A. To simplify Boolean algebra expressions
B. To perform binary addition
C. To store data
D. To convert analog signals
Answer: To simplify Boolean algebra expressions
What is a ‘PLA’ (Programmable Logic Array)?
A. A device used to implement combinational logic circuits
B. A type of memory storage
C. A signal amplifier
D. A device for converting analog signals to digital
Answer: A device used to implement combinational logic circuits
What is the main use of a ‘decoder’ in digital systems?
A. To convert binary inputs into a specific output code
B. To store binary data
C. To perform arithmetic operations
D. To amplify signals
Answer: To convert binary inputs into a specific output code
What is the function of a ‘MUX’ (Multiplexer)?
A. To select one of many input lines and forward it to a single output
B. To decode binary numbers
C. To store data
D. To perform logical operations
Answer: To select one of many input lines and forward it to a single output