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
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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
- 0
- 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?
- 0
- 10
- 1
- 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
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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
- 1
- 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
- 2
- 3
- 4
- 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
- 1
- 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
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Number System MCQ:- CEC Digital Electronics And Microprocessor Lesson 6 and 7
Number System MCQ:- CEC Digital Electronics And Microprocessor Lesson 6 and 7
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