Digital Logic Design – Digital Electronics MCQs Set-21

Digital Logic Design – Digital Electronics MCQs Set-21 Contain the randomly compiled Digital Electronics Multiple Choice Questions Answers from various reference books and Questions papers for those who is preparing for the various Competitive Exams,Interviews and University Level Exams.

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1. Half adder is logic CKT that adds. ………Digit at a time

• Two 
• one
• three
• zero

A. Two 

2. Half adder consist of. ……&…..Gates

• EX-OR&AND 
• EX-OR&OR
• EX-OR&NOT
• None of this

A. EX-OR&AND 

3. In half adder EX-OR gate O/P is …………

• Carry
• Remainder
• Sum 
• Non of this

C. Sum 

4. In half adder AND gate O/P is …………

• Carry 
• Reminder
• Sum
• Non of this

A. Carry 

5. Subtract ( 1010)2 from ( 1101 )2 using 1st complement..

• 1100)2
• (0011)2 
• (1001)2
• (0101)2

B. (0011)2 

6. Using 2’s Complement, subtraction, of (1010)2 from (0011)2 is

•  (0111)2
• (1001)2
• –(0111)2 
• –(1001)2

C. –(0111)2 

7. In 1st Complement a number to be subtracted is known as………

• Subtrahend 
• Minuend
• carry
• none of thi

A. Subtrahend 

8. In 1st Complement a number which is Subtracted from other number Is known as……….

• Carry
• subtrahend
• minuend 
• Non of this

C. minuend 

9. In a 2nd Complement a number which is subtracted from other Number is known as………..

• Carry
• Subtrahend 
• Minuend
• Non of this

B. Subtrahend 

10. In 2nd Complement a number which is subtracted from other number Is known as………….

• Carry
• Subtrahend
• Minuend 
• Non of this

C. Minuend