Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q901: What is the function of the Cascade Logic in a Logic Element?
- A: To cascade multiple LUTs
- B: To store data
- C: To amplify signals
- D: To convert analog to digital
View Answer
A
Q902: What does the first Programmable Select in a Logic Element do?
- A: Connects LUT output to a flip-flop input
- B: Connects flip-flop output to LUT output
- C: Connects LUT output to an external input
- D: Connects flip-flop input to an external input
View Answer
A
Q903: What is the purpose of the Sample and Hold operation in an A/D converter?
- A: To sample and hold analogue signals
- B: To convert analogue signals to digital
- C: To display analogue signals
- D: To amplify analogue signals
View Answer
A
Q904: According to the Nyquist Criteria, what is the minimum sampling frequency required to accurately reconstruct a signal with a maximum frequency of 50 Hz?
- A: 50 Hz
- B: 75 Hz
- C: 100 Hz
- D: 200 Hz
View Answer
C
Q905: What happens if the sampled signal is held for too short a period?
- A: The A/D converter will not work
- B: The conversion will be inaccurate
- C: The signal will be amplified
- D: The signal will be distorted
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B
Q906: What is the purpose of quantization in A/D conversion?
- A: To convert analogue signal to a digital format
- B: To sample the analogue signal
- C: To hold the analogue signal
- D: To amplify the analogue signal
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A
Q907: How many quantization levels are represented by a 2-bit binary number?
- A: 2
- B: 4
- C: 8
- D: 16
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B
Q908: What is the effect of increasing the number of quantization levels in A/D conversion?
- A: Decreases accuracy
- B: Increases accuracy
- C: Reduces processing time
- D: Reduces data size
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B
Q909: In a Flash A/D converter, what does the priority encoder do?
- A: Converts comparator outputs to binary
- B: Converts analogue signal to voltage
- C: Amplifies the analogue signal
- D: Filters the analogue signal
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A
Q910: What is the main advantage of a Flash A/D converter compared to other types?
- A: High-speed conversion
- B: Low power consumption
- C: Low cost
- D: High accuracy
View Answer
A