MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For D flip-flop to JK flip-flop, the characteristics equation is given by ___________ |
| A. | D=JQ(p) +Q(p)K |
| B. | D=JQ(p) +KQ(p) |
| C. | D=JQ(p)+Q(p)K |
| D. | D=J Q(p)+Q(p)K |
| Answer» B. D=JQ(p) +KQ(p) | |
| 2. |
For realisation of D flip-flop from SR flip-flop, the external input is given through ___________ |
| A. | S |
| B. | R |
| C. | D |
| D. | Both S and R |
| Answer» D. Both S and R | |
| 3. |
The K-map simplification for realisation of SR flip-flop from JK flip-flop is ___________ |
| A. | J=1, K=0 |
| B. | J=R, K=S |
| C. | J=S, K=R |
| D. | J=0, K=1 |
| Answer» D. J=0, K=1 | |
| 4. |
For realisation of SR flip-flop from JK flip-flop, if S=1, R=0 & present state is 0 then the excitation input will be ___________ |
| A. | J=1, K=1 |
| B. | J=X, K=1 |
| C. | J=1, K=X |
| D. | J=0, K=0 |
| Answer» D. J=0, K=0 | |
| 5. |
For realisation of SR flip-flop from JK flip-flop, if S=1, R=0 & present state is 0 then next state will be ___________ |
| A. | 1 |
| B. | 0 |
| C. | Don t care |
| D. | Toggle |
| Answer» B. 0 | |
| 6. |
For realisation of SR flip-flop from JK flip-flop, the excitation input will be obtained from ___________ |
| A. | S and R |
| B. | R input |
| C. | J and K input |
| D. | D input |
| Answer» D. D input | |
| 7. |
For realisation of JK flip-flop from SR flip-flop, if J=1, K=0 & present state is 0(i.e. Q(n)=0) then excitation input will be ___________ |
| A. | S=0, R=1 |
| B. | S=X, R=0 |
| C. | S=1, R=0 |
| D. | S=1, R=1 |
| Answer» D. S=1, R=1 | |
| 8. |
For realisation of JK flip-flop from SR flip-flop, if J=0 & K=0 then the input is ___________ |
| A. | S=0, R=0 |
| B. | S=0, R=X |
| C. | S=X, R=0 |
| D. | S=X, R=X |
| Answer» C. S=X, R=0 | |
| 9. |
For realisation of JK flip-flop from SR flip-flop, the input J and K will be given as ___________ |
| A. | External inputs to S and R |
| B. | Internal inputs to S and R |
| C. | External inputs to combinational circuit |
| D. | Internal inputs to combinational circuit |
| Answer» B. Internal inputs to S and R | |
| 10. |
To realise one flip-flop using another flip-flop along with a combinational circuit, known as ____________ |
| A. | PREVIOUS state decoder |
| B. | NEXT state decoder |
| C. | MIDDLE state decoder |
| D. | PRESENT state decoder |
| Answer» C. MIDDLE state decoder | |