MCQs on Sequential Circuits
1. The logic circuits whose outputs at any instant of time depend both on the present input and on the past outputs are called _________
- Combinational circuits
- Sequential circuits
- Latches
- Flip-flops
2. Among the following, which operates faster?
- Combinational circuits
- Sequential circuits
- Latches
- Flip-flops
3. Sequential circuit contains _________
- no memory element
- at least one memory element
- all inputs are applied simultaneously
- none of the above
4. Which of the following is not the sequential circuit?
- Counters
- Shift registers
- Multiplexers
- Flip-flops
5. Race around condition occurs in _____
- Multiplexers
- Flip-flops
- Voltage regulator
- PROM
6. Master-slave configuration is used in flip-flop to
- increase its clock rate
- reduce the power dissipation
- eliminate the race-around condition
- improve its reliability
7. Which of the following flip-flop is used as a Latch?
- JK flip-flop
- SR flip-flop
- T flip-flop
- D flip-flop
8. When a flip-flop is reset, its output will be
- Q=Q, Ǭ=1
- Q=1, Ǭ=0
- Q=0, Ǭ=0
- Q=1, Ǭ=1
9. A JK flip-flop can be made from an SR flip-flop by using two additional
- NAND gates
- OR gates
- NOT gates
- NOR gates
10. In a toggle mode, a JK flip-flop has
- J=0, K=0
- J=0, K=1
- J=1, K=0
- J=1, K=1