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Quiz-2: Sequential Logic Circuits

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

When the output of a sequential circuit depends on the present input as well as previous output states, then the circuit is called

a)

Moore machine

b)

Mealy Machine

c)

Sequential circuit

d)

Combinational circuit

2.

A n bit shift register cannot be used as

a)

Mod-n counter

b)

Mod-2n counter

c)

Serial to parallel conversion

d)

parallel to serial conversion

3.

The number of flip-flops required for a mod-5 counter is

a)

1

b)

2

c)

3

d)

4

4.

The minimum propagation delay is possible in

a)

Synchronous counter

b)

Asynchronous counter

c)

Shift register

d)

None of these

5.

In a J-K flip-flop, if J=K the resulting flip-flop is referred to as

a)

D flip-flop

b)

T flip-flop

c)

S-K flip-flop

d)

J-K Flip flop

6.

The flip-flop is only activated by _____________

a)

Positive edge trigger

b)

Negative edge trigger

c)

Either positive or Negative edge trigger

d)

None of the above

7.

The logic circuits whose outputs at any instant of time depends only on the present input but also on the past outputs are called

a)

Combinational Circuits

b)

Sequential Circuits

c)

Mealy Machine

d)

Moore Machine

8.

The flip-flops which are not having any invalid states are _____________

a)

a) S-R, J-K, D

b)

b) S-R, J-K, T

c)

c) J-K, D, T

d)

SR Flip flop

9.

Following flip flop is used to eliminate race around problem

a)

SR Flip flop

b)

JK Flip flop

c)

Master Slave Flip flop

d)

D Flip flop

10.

Bistable circuit can be used to store information of

a)

one bit

b)

two bits

c)

three bits

d)

four bits