Top 350+ Solved Digital Electronics and Logic Design MCQ Questions Answer

From 1 to 15 of 469

Q. The 2s compliment form (Use 6 bit word) of the number 1010 is

a. 111100

b. 110110

c. 110111

d. 1011

  • b. 110110

Q. AB+(A+B)’ is equivalent to

a. a ex-nor b

b. a ex or b

c. (a+b)a

d. (a+b)b

  • a. a ex-nor b

Q. The hexadecimal number equivalent to (1762.46)8 is

a. 3f2.89

b. 3f2.98

c. 2f3.89

d. 2f3.98

  • b. 3f2.98

Q. A three input NOR gate gives logic high output only when

a. one input is high

b. one input is low

c. two input are low

d. all input are low

  • d. all input are low

Q. The absorption law in Boolean algebra say that

a. x + x = x

b. x . y = x

c. x + x . y = x

d. none of the above

  • c. x + x . y = x

Q. Logic X-OR operation of (4ACO)H & (B53F)H results

a. aacb

b. 0

c. abcd

d. ffff

  • d. ffff

Q. What is decimal equivalent of (11011.1000)2 ?

a. 22

b. 22.2

c. 20.2

d. 27.5

  • d. 27.5

Q. The negative numbers in the binary system can be represented by

a. sign magnitude

b. 2\s complement

c. 1\s complement

d. all of the above

  • a. sign magnitude

Q. Negative numbers cannot be represented in

a. signed magnitude form

b. 1’s complement form

c. 2’s complement form

d. none of the above

  • d. none of the above

Q. The answer of the operation (10111)2*(1110)2 in hex equivalence is

a. 150

b. 241

c. 142

d. 1.01e+08

  • c. 142

Q. The Hexadecimal number equivalent of (4057.06)8 is

a. 82f.027

b. 82f.014

c. 82f.937

d. 83f.014

  • b. 82f.014

Q. A binary digit is called a

a. bit

b. character

c. number

d. byte

  • a. bit

Q. What is the binary equivalent of the decimal number 368

a. 101110000

b. 110110000

c. 111010000

d. 1.11e+08

  • a. 101110000

Q. What is the binary equivalent of the Octal number 367

a. 11110111

b. 11100111

c. 110001101

d. 101110111

  • a. 11110111
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