Top 550+ Solved Digital Principles and System Design MCQ Questions Answer
Q. An important drawback of binary system is
a. it requires very large string of 1’s and 0’s to represent a decimal number
b. it requires sparingly small string of 1’s and 0’s to represent a decimal number
c. it requires large string of 1’s and small string of 0’s to represent a decimal number
d. it requires small string of 1’s and large string of 0’s to represent a decimal number
Q. What is the addition of the binary numbers 11011011010 and 010100101?
a. 0111001000
b. 1100110110
c. 11101111111
d. 10011010011
Q. Representation of hexadecimal number (6DE)H in decimal:
a. 6 * 162 + 13 * 161 + 14 * 160
b. 6 * 162 + 12 * 161 + 13 * 160
c. 6 * 162 + 11 * 161 + 14 * 160
d. 6 * 162 + 14 * 161 + 15 * 160
Q. Perform multiplication of the binary numbers: 01001 × 01011 = ?
a. 001100011
b. 110011100
c. 010100110
d. 101010111
Q. Binary coded decimal is a combination of
a. two binary digits
b. three binary digits
c. four binary digits
d. five binary digits
Q. The decimal number 10 is represented in its BCD form as
a. 10100000
b. 01010111
c. 00010000
d. 00101011
Q. Carry out BCD subtraction for (68) – (61) using 10’s complement method.
a. 00000111
b. 01110000
c. 100000111
d. 011111000
Q. When numbers, letters or words are represented by a special group of symbols, this process is called
a. decoding
b. encoding
c. digitizing
d. inverting
Q. A three digit decimal number requires for representation in the conventional BCD format.
a. 3 bits
b. 6 bits
c. 12 bits
d. 24 bits
Q. How many bits would be required to encode decimal numbers 0 to 9999 in straight binary codes?
a. 12
b. 14
c. 16
d. 18
Q. The excess-3 code for 597 is given by
a. 100011001010
b. 100010100111
c. 010110010111
d. 010110101101