Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q751: What is the purpose of the CONSTATE.CLK = Clock statement in the ABEL file?
- A: To synchronize state changes with the clock
- B: To define the clock frequency
- C: To reset the state machine
- D: To initialize the circuit
View Answer
A
Q752: Which input signal resets the SR1 latch?
- A: DOOR.FB & MOTION.FB
- B: REQ1
- C: FLOOR1
- D: OPEN
View Answer
A
Q753: How is the direction of movement indicated in the elevator system?
- A: MOTION
- B: DIR
- C: DOOR
- D: SR2
View Answer
B
Q754: What is the function of the Traffic Signal Controller's LTIME signal?
- A: It indicates 1 minute has elapsed
- B: It indicates 5 minutes have elapsed
- C: It resets the timer
- D: It controls the yellow light
View Answer
B
Q755: What state does the Traffic Signal Controller transition to after NSG during the day?
- A: NSY
- B: EWG
- C: EWR
- D: NSY2
View Answer
A
Q756: Which state does the Traffic Signal Controller switch to from NSY2?
- A: NSR
- B: NSG
- C: EWG
- D: EWY
View Answer
A
Q757: How does the Traffic Signal Controller handle the transition from EWG during the night?
- A: Switches to NSY
- B: Remains in EWG if no car is detected
- C: Moves directly to NSG
- D: Switches to EWY
View Answer
B
Q758: What happens in the Traffic Signal Controller when a car arrives on both the NS and EW sections?
- A: The state changes to NSY
- B: The state remains NSG
- C: The state changes to EWY
- D: The state resets
View Answer
A
Q759: What input to the Traffic Signal Controller determines the state transition at night?
- A: LTIME
- B: NSSR
- C: STIME
- D: EWSR
View Answer
C
Q760: What is the output of the Traffic Signal Controller in the state EWR?
- A: North-South Green
- B: East-West Green
- C: North-South Red
- D: East-West Red
View Answer
D