Digital Circuits Questions Quiz Online Online Exam Quiz
Digital Circuits Questions Quiz Online GK Quiz. Question and Answers related to Digital Circuits Questions Quiz Online. MCQ (Multiple Choice Questions with answers about Digital Circuits Questions Quiz Online
How many types of flip-flops are?
Options
A : 2
B : 3
C : 4
D : 5
The S-R flip flop consist of ____________
Options
A : 4 AND gates
B : Two additional AND gates
C : An additional clock input
D : 3 AND gates
A NAND based S’-R’ latch can be converted into S-R latch by placing ____________
Options
A : A D latch at each of its input
B : An inverter at each of its input
C : It can never be converted
D : Both a D latch and an inverter at its input
The difference between a flip-flop & latch is ____________
Options
A : Both are same
B : Flip-flop consist of an extra output
C : Latches has one input but flip-flop has two
D : Latch has two inputs but flip-flop has one
What is the hold condition of a flip-flop?
Options
A : Both S and R inputs activated
B : No active S or R input
C : Only S is active
D : Only R is active
The circuit that is primarily responsible for certain flip-flops to be designated as edge-triggered is the _____________
Options
A : Edge-detection circuit
B : NOR latch
C : NAND latch
D : Pulse-steering circuit
What is one disadvantage of an S-R flip-flop?
Options
A : It has no Enable input
B : It has a RACE condition
C : It has no clock input
D : Invalid State
In a NAND based S’-R’ latch, if S’=1 & R’=1 then the state of the latch is ____________
Options
A : No change
B : Set
C : Reset
D : Forbidden
The characteristic equation of S-R latch is ____________
Options
A : Q(n+1) = (S + Q(n))R’
B : Q(n+1) = SR + Q(n)R
C : Q(n+1) = S’R + Q(n)R
D : Q(n+1) = S’R + Q'(n)R
One example of the use of an S-R flip-flop is as ____________
Options
A : Racer
B : Stable oscillator
C : Binary storage register
D : Transition pulse generator
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