Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Chapter: 1
Q61:
What is the nature of temperature change during a 24-hour period?
A. Abrupt
B. Gradual and continuous
C. Irregular
D. Unpredictable
Correct Answer:
B
Chapter: 1
Q62:
How can the velocity of a car be described when traveling from A to B?
A. Constant
B. Abrupt
C. Discontinuous
D. Continuous
Correct Answer:
D
Chapter: 1
Q63:
What is the representation of quantities in digital systems?
A. Continuous
B. Quantized
C. Discrete
D. Infinite
Correct Answer:
C
Chapter: 1
Q64:
What happens if the number of samples of a continuous signal is reduced by half?
A. No effect
B. More accurate representation
C. Signal becomes smoother
D. Signal becomes less accurate
Correct Answer:
D
Chapter: 1
Q65:
What type of electronic system accepts and processes continuous signals?
A. Digital
B. Analogue
C. Discrete
D. Mixed
Correct Answer:
B
Chapter: 1
Q66:
Which voltage represents a logic high state in digital systems?
A. 0 volts
B. +5 volts
C. -5 volts
D. +12 volts
Correct Answer:
B
Chapter: 1
Q67:
What is used to convert continuous signals to digital signals?
A. Digital-to-Analogue Converter (DAC)
B. Memory
C. Analogue-to-Digital Converter (ADC)
D. Transducer
Correct Answer:
C
Chapter: 1
Q68:
What is the Binary Number System based on?
A. Two values
B. Ten values
C. Sixteen values
D. Eight values
Correct Answer:
A
Chapter: 1
Q69:
What advantage does storing data digitally offer?
A. Less efficient
B. More prone to errors
C. Easier to design
D. Easier error detection and correction
Correct Answer:
D
Chapter: 1
Q70:
How many colors can be represented using two binary digits?
A. Two
B. Four
C. Eight
D. Sixteen
Correct Answer:
B
Chapter: 1
Q71:
What is an example of a Sequential Circuit in digital systems?
A. Decoder
B. Multiplexer
C. Counter
D. Adder
Correct Answer:
C
Chapter: 1
Q72:
What is a Programmable Logic Device (PLD) used for?
A. Permanent memory storage
B. Temporary data storage
C. Implementing combinational and sequential circuits
D. Power management
Correct Answer:
C
Chapter: 1
Q73:
What is the role of memory in digital systems?
A. Only for temporary storage
B. Permanent and temporary storage
C. Only for permanent storage
D. Data transmission
Correct Answer:
B
Chapter: 1
Q74:
What converts real-world quantities into equivalent digital values?
A. Power supply
B. Logic gates
C. Transducers
D. A/D and D/A converters
Correct Answer:
D
Chapter: 1
Q75:
What is the purpose of a Digital-to-Analogue Converter (DAC)?
A. To convert digital values into continuous values
B. To store data
C. To transmit data
D. To correct errors
Correct Answer:
A
Chapter: 1
Q76:
How are digital circuits typically designed?
A. Complex and large
B. Simple and small
C. Expensive and slow
D. Prone to errors
Correct Answer:
B
Chapter: 1
Q77:
What is the fundamental building block of digital circuits?
A. Transistor
B. Logic gate
C. Capacitor
D. Resistor
Correct Answer:
B
Chapter: 1
Q78:
Which of the following represents a binary number system?
A. 123
B. 1100
C. 56789
D. ABCDE
Correct Answer:
B
Chapter: 2
Q79:
What is the method used to convert from Binary to Decimal?
A. Repeated Multiplication
B. Sum-of-Weights
C. Division by 2
D. Subtraction
Correct Answer:
B
Chapter: 2
Q80:
Which of the following binary numbers is equivalent to the decimal number 22?
A. 11010
B. 10101
C. 10110
D. 1011
Correct Answer:
C