Question # 1

Boolean algebra is also known as.

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logical algebra

control algebra

switching algebra

programming algebra

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0

1

x

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A + B + C + D

A + B C + D

An OR gate has 6 input. The number of input words in its truth table are.

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6

32

64

128

Logical addition refers to operation of

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OR gate

AND gate

NOT gate

invertr gate

In Boolean algebra A.A.A.A.A

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5A

A

A⁵

1

The circuit that is used for parallel to serial conversion is

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decoder

encoder

multiplexer

demultiplexer

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

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x

y

1+x

1+y

Logical multiplication refers to operation of.

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OR gate

AND gate

NOT gate

inverter gater

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 Idempotent law , x + y = __________

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1

0

x

x . x

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

Boolean algebra is.

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used for arithmetical operation is ALU

an aid for binary conversion

useful for error detection and error correction

used to describe the behavior and structure of logic networks and as an aid in the design of logic system

The heart of analog to digital converter (ADC) is

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comparator

pulse generator

voltage source

current source

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

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A

n A

0

1

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

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