Question # 1

Boolean algebra is also known as.

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logical algebra

control algebra

switching algebra

programming algebra

According to Idempotent law , x + y = __________

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1

0

x

x . x

Odd parity of a word can be conveniently tested by.

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OR gate

XOR gate

NOR gate

NAND gate

The half adder circuit has

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one input

two inputs

three inputs

always more than two inputs

In a three input NAND gate, if all the inputs are 1, the output is.

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0

1

3

indeterminate

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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A + B + C + D

A BC D

A + B + C + D

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A + B + C + D

A + B C + D

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

The 'Boolean Algebra' is based on the premise that

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there are two states

differential equations can be solved by analog circuits.

either a statement is true or false

arithmetic operations can be carried out

Logical multiplication refers to operation of.

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OR gate

AND gate

NOT gate

inverter gater

According to aborption law x+x.y=

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x

y

1 + x

1 + y

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

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Boolean addition

Boolean multiplication

Boolean complementation

All of the above

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

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0

1

x

According to Boolean algebra x + 1 = ______________

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0

1

x

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

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