Question # 1

According to absorption law x. (x+y) =

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x

y

1+x

1+y

NAND gates are preferred over others because these.

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have lower fabrication area

can be used to make any gate

consume least elctronic power

provide maximum density in a chip

Odd parity of a word can be conveniently tested by.

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OR gate

XOR gate

NOR gate

NAND gate

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x + y

Logical addition refers to operation of

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OR gate

AND gate

NOT gate

invertr gate

Boolean expression for NOR gate with two inputs x and y can be written as.

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x + y__

x. y

x + y

The output will be one in case any input is one in the case of.

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OR gate

AND gate

NAND gate

NOT gate

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0

1

x

Boolean description for the exclusive OR gate for two inputs x and y can be written as.

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x + y __

_x _y

x. y + x. y

x . y + x .y

According to Boolean algebra A+A+......+A is

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A

n A

0

1

Which of the following operations are used by Boolean algebra.?

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Boolean addition

Boolean multiplication

Boolean complementation

All of the above

According to Idempotent law , x + y = __________

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1

0

x

x . x

The commutative law in Boolean Algebra, where a, b and c are binary number is.

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a+0=a

a+1=1

a+b=b+a

a. (b+c) = a.b +a.c.

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0

1

x

If A and B are two 1-bit numbers, what logic gates will be required to test for A=B?

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NOR gate

EXCLUSIVE OR gate

EXCLUSIVE NOT gate

OR gate

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ECAT Computer Science Chapter 5 Boolean Algebra Online Test MCQs With Answers

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