Top 350+ Solved Digital Logic Circuits (DLC) MCQ Questions Answer
Q. The characteristic equation of D-flip-flop implies that
a. the next state is dependent on previous state
b. the next state is dependent on present state
c. the next state is independent of previous state
d. the next state is independent of present state
Q. The asynchronous input can be used to set the flip-flop to the
a. 1 state
b. 0 state
c. either 1 or 0 state
d. forbidden state
Q. At the end of the clock pulse the value of output Q is uncertain. The situation is referred to as?
a. conversion condition
b. race around condition
c. lock out state
d. forbidden state
Q. Master slave flip flop is also referred to as?
a. level triggered flip flop
b. pulse triggered flip flop
c. edge triggered flip flop
d. edge-level triggered flip flop
Q. In a positive edge triggered JK flip flop, a low J and low K produces?
a. high state
b. low state
c. toggle state
d. no change state
Q. If one wants to design a binary counter, the preferred type of flip-flop is
a. d type
b. s-r type
c. latch
d. j-k type
Q. S-R type flip-flop can be converted into D type flip-flop if S is connected to R through
a. or gate
b. and gate
c. inverter
d. full adder
Q. Which of the following flip-flops is free from the race around the problem?
a. t flip-flop
b. sr flip-flop
c. master-slave flip-flop
d. d flip-flop
Q. Which of the following is the Universal Flip-flop?
a. s-r flip-flop
b. j-k flip-flop
c. master slave flip-flop
d. d flip-flop
Q. The term synchronous means _
a. the output changes state only when any of the input is triggered
b. the output changes state only when the clock input is triggered
c. the output changes state only when the input is reversed
d. the output changes state only when the input follows it
Q. The S-R, J-K and D inputs are called
a. asynchronous inputs
b. synchronous inputs
c. bidirectional inputs
d. unidirectional inputs
Q. The characteristic of J-K flip-flop is similar to
a. s-r flip-flop
b. d flip-flop
c. t flip-flop
d. gated t flip-flop