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Digital Electronics

Digital Electronics
A bubbled AND gate is equivalent to a

 OR gate
 NAND gate
 NOR gate
 X-OR gate

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Digital Electronics
What logic function is produced by adding inverters to the inputs of an OR gate?

 X-NOR
 NAND
 NOR
 AND

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Digital Electronics
The number of rows in the truth table of a 4-input gate is

 8
 4
 12
 16

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Digital Electronics
Logic circuits are

 hybrid circuits
 analog circuits
 none of these
 digital circuits

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Digital Electronics
Extended Binary Coded Decimal Interchange Code is an ________ bit code.

 7
 8
 16
 32

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Only (II)
 Both (I) & (II)
 Both (II)&(III)
 Both (I)&(IV)

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