Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q111: In binary arithmetic, what is the difference bit when subtracting 1 from 1?
- A: "0"
- B: 1
- C: -1
- D: Undefined
View Answer
A
Q112: How are signed and unsigned binary numbers treated in digital systems?
- A: Both treated as signed
- B: Both treated as unsigned
- C: Depends on system settings
- D: System decides automatically
View Answer
C
Q113: What happens when the result of an arithmetic operation exceeds the range specified by binary representations?
- A: It is stored as zero
- B: It is stored as infinity
- C: It is considered as an Overflow
- D: It is stored as the maximum value
View Answer
C
Q114: What is the range of a 3-bit unsigned binary number?
- A: 0 to 7
- B: 0 to 8
- C: 1 to 7
- D: 1 to 8
View Answer
A
Q115: Which of the following numbers in 4-bit 2’s complement form will result in an overflow when added together?
- A: 0101 + 0100
- B: 1011 + 1100
- C: 0101 + 1100
- D: 1011 + 0100
View Answer
B
Q116: How can overflow be detected in 2's complement addition?
- A: By checking if the carry bit is 1
- B: By checking if the result is zero
- C: By comparing the sign bits of operands and result
- D: By ensuring the exponent is not zero
View Answer
C
Q117: Which IEEE standard defines the 32-bit Single Precision Floating Point format for binary numbers?
- A: IEEE 754
- B: IEEE 765
- C: ANSI 754
- D: ANSI 765
View Answer
A
Q118: What is the sign bit (S) used for in the 32-bit Single Precision Floating Point format?
- A: To represent the exponent
- B: To represent the mantissa
- C: To represent the sign of the number
- D: To represent the floating point
View Answer
C
Q119: The ANSI/IEEE Standard 754 defines a __________Single-Precision Floating Point format for binary numbers.
- A: 8-bit
- B: 16-bit
- C: 32-bit
- D: 64-bit
View Answer
C
Q120: In 32-bit Single Precision Floating Point format, how many bits are allocated for the exponent?
- A: 23
- B: 8
- C: 1
- D: 11
View Answer
B