Top 350+ Solved Digital Electronics and Logic Design MCQ Questions Answer
Q. Simplify F = (ABC)'+( AB)'C+ A'BC'+ A(BC)'+ AB'C.
a. ( a\ + b\ +c\ )
b. ( a\ + b +c )
c. ( a + b +c )
d. ( a + b\+c\ )
Q. Determine the binary numbers represented by 25.5
a. 11001.1
b. 11011.101
c. 10101.11
d. 11001.0101
Q. Conversion of decimal number 10.625 into binary number:
a. 1010.101
b. 1110.101
c. 1001.11
d. 1001.101
Q. Conversion of fractional number 0.6875 into its equivalent binarynumber:
a. 0.1011
b. 0.1111
c. 0.10111
d. 0.0101
Q. Perform the following subtractions using 2’s complement method. 01000 – 01001
a. 1
b. 10
c. 11
d. 11110
Q. Minimize the logic functionY(A,B,C,D) = IZm(0,1,2,3,5,7,8,9,11,14) . UsingKarnaugh map.
a. abc d\ + a\ b\+ b\ c\ + b\ d+ a\d
b. abc d + a b+ b\ c\ + b\ d+ a\d
c. a\ b\ + b\ c\ + b\ d+ a\d
d. abc d\ + a\ b\ + b\ c\ + b\ d
Q. Simplify the given expression to its Sum of Products (SOP) form Y = (A + B)(A + (AB)')C + A'(B+C')+ A'B+ ABC
a. ac+ bc+ a\b + a\ c\
b. ac+ bc+ a\b
c. bc+ a\b + a\ c\
d. ac+ a\b + a\ c\
Q. Convert the decimal number 82.67 to its binary, hexadecimal and octal equivalents
a. (1010010.10101011)2; (52.ab)16 ;
b. (1010010.10101011)2; (52.ab)16 ;
c. (1010010.10101011)2; (52.ab)16 ;
d. (1010010.
Q. Add 20 and (-15) using 2’s complement.
a. (100100 )2 or(+4)10
b. (000100 )2or (-4)10
c. both (a) and (b)
d. none of the above
Q. (23.6)10 = (X)2 FIND X
a. (10111.1001100)2
b. (10101.1001100)2
c. (10001.1001100)2
d. (10111.1000011)2
Q. Convert the decimal number 430 to Excess-3 code:
a. 110110001
b. 110110000
c. 110110011
d. 110100001
Q. Minimize the following logic function using K-maps F(A,B,C,D) = m(1,3,5,8,9,11,15) + d(2,13)
a. a b\ c\ + c\ d + b\d + ad
b. c\ d + b\d + ad
c. a b\ c\ + b\d+ ad
d. a b\ c\ + c\ d + b\d