Question # 1

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

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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

According to Idempotent law , x + y = __________

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1

0

x

x . x

Logical addition refers to operation of

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OR gate

AND gate

NOT gate

invertr gate

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

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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

Which of the following gate is two level logic gate.

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OR gate

AND gate

EXCLUSIVE OR gate

NAND gate

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0

1

x

The half adder circuit has

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one input

two inputs

three inputs

always more than two inputs

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

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6

32

64

128

Which of the following statement is true in the case of AND gate with input A and B.

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If A and B are applied, there will not be any output

If neither input is applied, there will be an output

If one input is applied there will not be any output

If one input is applied there will be an output

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

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0

1

3

indeterminate

The logic device that perform Boolean multiplication is.

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AND gate

OR gate

Inverter

None of these

The number of inputs to full adder are

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1

2

3

4

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