Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q181: The output of the expression F=A.B.C will be Logic ________ when A=1, B=0, C=1.
- A: Undefined
- B: One
- C: Zero
- D: No Output as input is invalid.
View Answer
C
Q182: ________ is invalid number of cells in a single group formed by the adjacent cells in K-map
- A: 2
- B: 8
- C: 12
- D: 16
View Answer
C
Q183: The PROM consists of a fixed non-programmable ____________ Gate array configured as a decoder.
- A: AND
- B: OR
- C: NOT
- D: XOR
View Answer
A
Q184: ___________ is one of the examples of asynchronous inputs.
- A: J-K input
- B: S-R input
- C: D input
- D: Clear Input (CLR)
View Answer
D
Q185: Consider an up/down counter that counts between 0 and 15, if external input(X) is “0” the counter counts upward (0000 to 1111) and if external input (X) is “1” the counter counts downward (1111 to 0000), now suppose that the present state is “1100” and X=1, the next state of the counter will be ___________
- A: zero
- B: 1101
- C: 1011
- D: 1111
View Answer
C
Q186: A flip-flop with no clock input, can be used for _________
- A: Asynchronous control
- B: Synchronous control
- C: Synchronizing inputs
- D: Counting
View Answer
A
Q187: The term “Open Collector” is used in the context of ________
- A: Output
- B: Input
- C: Memory
- D: Data transfer
View Answer
A
Q188: The address from which the data is read, is provided by _______
- A: Depends on circuitry
- B: None of given options
- C: RAM
- D: Microprocessor
View Answer
D
Q189: FIFO is an acronym for __________
- A: First In, First Out
- B: Fly in, Fly Out
- C: Fast in, Fast Out
- D: None of given options
View Answer
A
Q190: ______ of a D/A converter is determined by comparing the actual output of a D/A converter with the expected output.
- A: Resolution
- B: Accuracy
- C: Quantization
- D: Missing Code
View Answer
B