Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Chapter: 4
Q141:
What is the base value of the Octal Number System?
A. 2
B. 8
C. 16
D. 10
Correct Answer:
B
Chapter: 4
Q142:
Excess-8 code assigns _______ to “-8”
A. 1110
B. 1100
C. 1000
Correct Answer:
D
Chapter: 4
Q143:
Which digits are used in the Octal Number System?
A. 0-9
B. 0-7
C. 0-6
D. 0-8
Correct Answer:
B
Chapter: 4
Q144:
Which digit represents the binary number 111 in octal?
A. 6
B. 7
C. 5
D. 3
Correct Answer:
B
Chapter: 4
Q145:
How is the decimal number 8 represented in the Octal system?
A. 8
B. 11
C. 10
D. 12
Correct Answer:
C
Chapter: 4
Q146:
What is the octal equivalent of the binary number 1001?
A. 9
B. 10
C. 11
D. 17
Correct Answer:
B
Chapter: 4
Q147:
Which of the following is a valid octal number?
A. 178
B. 18
C. 8
D. 76
Correct Answer:
D
Chapter: 4
Q148:
How do you represent the decimal number 16 in octal?
A. 16
B. 18
C. 20
D. 21
Correct Answer:
C
Chapter: 4
Q149:
Which of these binary numbers corresponds to the octal number 3?
A. 11
B. 10
C. 100
D. 101
Correct Answer:
A
Chapter: 4
Q150:
What is the octal equivalent of the decimal number 64?
A. 80
B. 100
C. 77
D. 10
Correct Answer:
B
Chapter: 4
Q151:
What is the value of octal 12 in decimal?
A. 12
B. 14
C. 10
D. 8
Correct Answer:
B
Chapter: 4
Q152:
What is the smallest digit used in the octal number system?
A. zero
B. 1
C. 7
D. 8
Correct Answer:
A
Chapter: 4
Q153:
How is the number 0 represented in the octal system?
A. zero
B. 1
C. 10
D. 8
Correct Answer:
A
Chapter: 4
Q154:
Which of these is not a valid octal number?
A. 70
B. 78
C. 71
D. 17
Correct Answer:
B
Chapter: 4
Q155:
What is the octal equivalent of binary 1010?
A. 12
B. 10
C. 11
D. 8
Correct Answer:
B
Chapter: 4
Q156:
How is the binary number 111 represented in octal?
A. 5
B. 7
C. 6
D. 4
Correct Answer:
B
Chapter: 5
Q157:
What is the output of a 2-input AND gate when both inputs are 1?
A. zero
B. 1
C. 10
D. 1
Correct Answer:
B
Chapter: 5
Q158:
What is the output of a 2-input OR gate when both inputs are 0?
A. zero
B. 1
C. 10
D. 1
Correct Answer:
A
Chapter: 5
Q159:
Which gate performs a logical multiplication function?
A. OR Gate
B. AND Gate
C. NOT Gate
D. NAND Gate
Correct Answer:
B
Chapter: 5
Q160:
How many inputs does a NOT Gate have?
A. 2
B. 1
C. 3
D. 4
Correct Answer:
B