CEC Digital Electronics & Microprocessor Lesson 6,7 MCQ Answers (Number System)

Number System MCQ:- CEC Digital Electronics And Microprocessor Lesson 6 and 7

MCQ’S – LESSON 6 Answers (Number System)

1.Multiplication is repeated ____ 

  • Addition 
  • Division 
  • Complement 
  • Subtraction.

Ans:- 1. Addition

2. What is the value(1110)₂ + (0011)₂ in Binary addition? 

  • 10001 
  • 11001 
  • 11100 
  • 11111

Ans:- 1) 10001

NPTEL ALL WEEK ASSIGNMENT ANSWERS:-

3. What is the value (1111)₂ +(1111)₂ in Binary addition? 

  • 11110 
  • 11001 
  • 11100  
  • 11111

Ans:- 1) 11110 

4. 1’s complement of 01010 is 11100 

  • 11100 
  • 11001  
  • 10101 
  • 1001

Ans:- 3) 10101

5. 1 ‘s complement of 0 and 1 respectively  

  • 1 & 0 
  • 1 & 1 
  • 0 & 1  
  • 0 & 0

Ans:- 1 & 0

6. 11011/10 is 

  • 1100 
  • 1101  
  • 1010  
  • 1011

Ans:- 1101  

7. What is the value of 0/1? 

  • 10 
  • 11 
  • 10

Ans:- 0

8. What is the product of 1110*0101.? 

  • 1000110 
  • 1000010 
  • 1100110  
  • 1010110

Ans:- 1000110

9. Subtraction of 1110 and 1010 is  

  • 0101 
  • 0100 
  • 0110 
  • 1100

Ans:- 0100

10. What is the value of 10-1? 

  • 10 
  • 01

Ans:- 1


11. Binary addition of 11+1 is 

  • 101  
  • 001 
  • 110  
  • 100

Ans:- 100

12. Product of 111*10.10 is 

  • 10001.10 
  • 11001.10  
  • 10101.10  
  • 10001.11

Ans:- 10001.10

13. 1’s complement of 1100 is  

  • 0011 
  • 1000 
  • 1001  
  • 0100

Ans:- 0011

14. 11101010-00001101 is 

  • 11010101 
  • 11011101  
  • 11011100 
  • 11001101

Ans:- 11011101 

NPTEL ALL WEEK ASSIGNMENT ANSWERS:-

15. Product of 11101 and 00000010 is 

  • 111010  
  • 111011  
  • 111110 
  • 110010

Ans:- 111010 

MCQ’S – LESSON 7 Answers (Number System)

1.What is the 1’s complement of 1 ? 

  • 0  
  • 11 
  • 00

Ans:- 0

2. In 1’s complement subtraction if a carry is not produced then it is  

  • positive number 
  • negative number  
  • zero  
  • one

Ans:- negative number 

3. Subtract the following two  numbers using 1’s complement.11010 and 1001 

  • 110011 
  • 10001 
  • 100011  
  • 101011

Ans:- 10001

4. Subtract 6 from 5 using ones complement.

  • -001 
  • -010 
  • 101 
  • 110

Ans:- -001

5. If  carry is not produced in the  result of 2’s complement subtraction then the number is 

zero 

one  

negative  

positive

Ans:- negative  

6. what is the 2’s complement subtraction of 1100 and 1010. 

  • 11 
  • 01 
  • 10 
  • 00

Ans:- 10

7. what is the 2’s complement subtraction of 1100 and 1010. 

  • 11 
  • 01 
  • 10 
  • 00

Ans:- 011

8. Carry should be ignored in 2’s complement subtraction. 

  • True 
  • False

Ans:- True

9. Subtract using 9’s complement of 4 and 1 is  

  • 1

Ans:- 3

10. Subtract using  10’s complement of 23and 28 is  

  • 3  
  • -3  
  • -5 
  • 5

Ans:- -5

11. In 10’s complement subtraction , the carry generated is ignored. 

  • True  
  • False

Ans:- True

12. Digital system offers how many states? 

  • 4  
  • 2  
  • 5

Ans:- 2

13. BCD equivalent of decimal 8 is 

  • 0001 
  • 1000 
  • 1100  
  • 0010

Ans:- 1000

14. BCD equivalent of 707 is 

  • 011100000111  
  • 111100000111  
  • 011110000111  
  • 011100000011

Ans:- 011100000111 

NPTEL ALL WEEK ASSIGNMENT ANSWERS:-

Number System MCQ:- CEC Digital Electronics And Microprocessor Lesson 6 and 7

JOIN US ON YOUTUBE

Number System MCQ:- CEC Digital Electronics And Microprocessor Lesson 6 and 7

2 thoughts on “CEC Digital Electronics & Microprocessor Lesson 6,7 MCQ Answers (Number System)”

Leave a Comment