Quiz-2: Sequential Logic Circuits

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

• Moore machine

• Mealy Machine

• Sequential circuit

• Combinational circuit

A n bit shift register cannot be used as

• Mod-n counter

• Mod-2n counter

• Serial to parallel conversion

• parallel to serial conversion

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

• 1

• 2

• 3

• 4

The minimum propagation delay is possible in

• Synchronous counter

• Asynchronous counter

• Shift register

• None of these

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

• D flip-flop

• T flip-flop

• S-K flip-flop

• J-K Flip flop

The flip-flop is only activated by _____________

• Positive edge trigger

• Negative edge trigger

• Either positive or Negative edge trigger

• None of the above

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

• Combinational Circuits

• Sequential Circuits

• Mealy Machine

• Moore Machine

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

• a) S-R, J-K, D

• b) S-R, J-K, T

• c) J-K, D, T

• SR Flip flop

Following flip flop is used to eliminate race around problem

• SR Flip flop

• JK Flip flop

• Master Slave Flip flop

• D Flip flop

Bistable circuit can be used to store information of

• one bit

• two bits

• three bits

• four bits