Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q761: What type of logic is used to reset the TMRST signal in the Traffic Signal Controller?
- A: Combinational
- B: Sequential
- C: Synchronous
- D: Asynchronous
View Answer
A
Q762: In the Traffic Signal Controller, which pin is used for the NSSR input?
- A: Pin 1
- B: Pin 2
- C: Pin 14
- D: Pin 17
View Answer
B
Q763: Which state in the Traffic Signal Controller has both North-South and East-West lights red?
- A: NSY
- B: EWG
- C: EWR
- D: NSR
View Answer
C
Q764: What does the EWY2 state indicate in the Traffic Signal Controller?
- A: North-South Green
- B: East-West Green
- C: East-West Yellow transition
- D: North-South Yellow transition
View Answer
C
Q765: How many output signals control the traffic lights in the Traffic Signal Controller?
- A: 4
- B: 5
- C: 6
- D: 7
View Answer
D
Q766: What happens when the EWSR & !NSSR condition is true in the NSG state of the Traffic Signal Controller?
- A: The state changes to NSY
- B: The state remains in NSG
- C: The state moves to EWY
- D: The state changes to NSR
View Answer
B
Q767: What is the role of the TMRST signal in the Traffic Signal Controller?
- A: To switch the state
- B: To reset the timer
- C: To control the green light
- D: To activate the LTIME signal
View Answer
B
Q768: Which input in the Traffic Signal Controller determines if the traffic lights should change after 5 minutes?
- A: STIME
- B: EWSR
- C: LTIME
- D: NSSR
View Answer
C
Q769: How is the floor number displayed in the elevator system?
- A: Using SR1
- B: Using SR2
- C: Through the MOTION and DIR inputs
- D: Through the FLOOR1 and FLOOR2 inputs
View Answer
C
Q770: What does the TRSTATE variable in the Traffic Light Controller depend on?
- A: State inputs
- B: Timer signals
- C: Clock transition
- D: Manual input
View Answer
C