Digital Logic Design MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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What does the ‘VHDL’ language stand for in digital design?
A. VHSIC Hardware Description Language
B. Very High Definition Language
C. Variable High Digital Logic
D. Virtual Hardware Design Language
Answer: VHSIC Hardware Description Language
What is the use of a ‘binary counter’?
A. To count in binary numbers
B. To convert binary to decimal
C. To store data
D. To filter digital signals
Answer: To count in binary numbers
What is the output of a NAND gate when all inputs are false?
A. True
B. False
C. Zero
D. Undefined
Answer: True
What is a ‘MUX’ or multiplexer used for?
A. To select one of many inputs and forward it to a single output line
B. To store data
C. To amplify signals
D. To perform arithmetic operations
Answer: To select one of many inputs and forward it to a single output line
What does ‘combinational logic’ refer to?
A. Logic circuits whose output depends solely on the current inputs
B. Circuits with memory elements
C. Logic gates that perform arithmetic functions
D. Sequential circuits with feedback
Answer: Logic circuits whose output depends solely on the current inputs
What is ‘asynchronous logic’?
A. Logic circuits that do not rely on a clock signal for timing
B. Logic circuits that use synchronous timing
C. Circuits with flip-flops
D. Arithmetic circuits
Answer: Logic circuits that do not rely on a clock signal for timing
What is a ‘register’ in digital logic design?
A. A collection of flip-flops used to store binary data
B. A type of adder
C. A logic gate
D. A signal amplifier
Answer: A collection of flip-flops used to store binary data
What does a ‘JK flip-flop’ do?
A. It is a type of flip-flop that can toggle between states based on inputs
B. It performs multiplication
C. It filters analog signals
D. It stores text data
Answer: It is a type of flip-flop that can toggle between states based on inputs
Which device converts analog signals to digital signals?
A. Analog-to-Digital Converter (ADC)
B. Digital-to-Analog Converter (DAC)
C. Multiplexer
D. Decoder
Answer: Analog-to-Digital Converter (ADC)