Explore topic-wise MCQs in Digital Circuits.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

The decimal equivalent of the excess-3 number 110010100011.01110101 is _____________

A. 970.42
B. 1253.75
C. 861.75
D. 1132.87
Answer» B. 1253.75
Discussion
2.

The excess-3 code for 597 is given by __________

A. 100011001010
B. 100010100111
C. 010110010111
D. 010110101101
Answer» B. 100010100111
Discussion
3.

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
Answer» C. Digitizing
Discussion
4.

Carry out BCD subtraction for (68) – (61) using 10’s complement method.

A. 00000111
B. 01110000
C. 100000111
D. 011111000
Answer» B. 01110000
Discussion
5.

The decimal number 10 is represented in its BCD form as __________

A. 10100000
B. 01010111
C. 00010000
D. 00101011
Answer» D. 00101011
Discussion
6.

Binary coded decimal is a combination of __________

A. Two binary digits
B. Three binary digits
C. Four binary digits
D. Five binary digits
Answer» D. Five binary digits
Discussion
7.

THE_EXCESS-3_CODE_FOR_597_IS_GIVEN_BY?$

A. 100011001010
B. 100010100111
C. 010110010111
D. 010110101101
Answer» B. 100010100111
Discussion
8.

The_decimal_equivalent_of_the_excess-3_number_110010100011.01110101_is$

A. 970.42
B. 1253.75
C. 861.75
D. None of the Mentioned
Answer» B. 1253.75
Discussion
9.

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
Answer» D. 18
Discussion
10.

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
Answer» D. 24 bits
Discussion
11.

When numbers, letters or words are represented by a special group of symbols, this process is called

A. Decoding
B. Encoding
C. Coding
D. None of the Mentioned
Answer» C. Coding
Discussion
12.

Code is a symbolic representation of __________ information.

A. Continuous
B. Discrete
C. binary
D. None of the Mentioned
Answer» C. binary
Discussion
13.

Carry out BCD subtraction for (68) – (61) using 10’s complement method.$

A. 00000111
B. 01110000
C. 100000111
D. 011111000
Answer» B. 01110000
Discussion
14.

Add the two BCD numbers: 1001 + 0100 = ?

A. 1101
B. 00001101
C. 00110011
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
15.

The decimal number 10 is represented in its BCD form as

A. 1010
B. 01010
C. 00010000
D. 001010
Answer» D. 001010
Discussion
16.

Binary coded decimal is a combination of

A. Two binary digits
B. Three binary digits
C. Four binary digits
D. None of the Mentioned
Answer» D. None of the Mentioned
Discussion