Top 350+ Solved Digital Logic Circuits (DLC) MCQ Questions Answer
Q. A register that is used to store binary information is called
a. data register
b. binary register
c. shift register
d. d – register
Q. A shift register is defined as
a. the register capable of shifting information to another register
b. the register capable of shifting information either to the right or to the left
c. the register capable of shifting information to the right only
d. the register capable of shifting information to the left only
Q. In serial shifting method, data shifting occurs
a. one bit at a time
b. simultaneously
c. two bit at a time
d. four bit at a time
Q. What is a recirculating register?
a. serial out connected to serial in
b. all q outputs connected together
c. a register that can be used over again
d. parallel out connected to parallel in
Q. When is it important to use a three-state buffer?
a. when two or more outputs are connected to the same input
b. when all outputs are normally high
c. when all outputs are normally low
d. when two or more outputs are connected to two or more inputs
Q. How much storage capacity does each stage in a shift register represent?
a. one bit
b. two bits
c. four bits
d. eight bits
Q. The decimal number system represents the decimal number in the form of
a. hexadecimal
b. binary coded
c. octal
d. decimal
Q. The output sum of two decimal digits can be represented in
a. gray code
b. excess-3
c. bcd
d. hexadecimal
Q. The addition of two decimal digits in BCD can be done through
a. bcd adder
b. full adder
c. ripple carry adder
d. carry look ahead
Q. 3 bits full adder contains
a. 3 combinational inputs
b. 4 combinational inputs
c. 6 combinational inputs
d. 8 combinational inputs
Q. The simplified expression of full adder carry is
a. c = xy+xz+yz
b. c = xy+xz
c. c = xy+yz
d. c = x+y+z